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+TITLE.
C GEANT   3.21/11  10/02/98  17.58.14  CERN PROGRAM LIBRARY GEANT  = W5013
+PATCH,$VERSION.
+DECK,V3_21.
*CMZ :  3.21/10 13/11/97  17.58.14  by  S.Giani
*-- Author :
*
*::>          VERSION  3.21/04   21/03/95 17.58.14
*
*
*::>          VERSION  3.21/03   17/10/94 16.00.29
*
*
*::>          VERSION  3.21/02   25/07/94 15.24.16
*
*
*::>          VERSION  3.21/01   28/03/94 16.10.10
*
*
*::>          VERSION  3.21/00   28/02/94 16.32.43
*
**********************************************************************
*                                                                    *
*                       G E A N T   3 . 2 1                          *
*                                                                    *
*                            C E R N                                 *
*                                                                    *
*                       15/3/94  Geneva  CH                          *
*                                                                    *
**********************************************************************
*
* GEANT 3.21 has a new tracking logic to speed up the search over the
*            volumes positioned inside a given node (Virtual Divisions).
*            The new tracking is initialized by GGCLOS in a completely
*            transparent way and in a negligible amount of time.
*            The GUNEAR and GSORD techniques are automatically disabled
*            and no change in the user code is needed. Anyway, it is
*            still possible to get the old Geant tracking recompiling
*            GEANT and GEANG with the patchy flag OLD.
*            To implement the new logic, the following routines have
*            written or deeply modified: GTNEXT, GGCLOS, GTMEDI, GNEXT,
*            GMEDIA, GINVOL, GVDCAR, GVDRAD, GVDPHI, GVDLIM, GSCVOL.
*                                                               S.Giani.
*
* GEANT 3.21 has a new logic for MANY volumes: the tracking is not
*            based anymore on a step-search, but relies on a algorithm
*            similar to the one used for ONLY volumes (giving then
*            basically the same speed obtained for ONLY). The new logic
*            of MANY allows boolean operations between volumes, clipping
*            of protuding objects, divisions along arbitrary axis,
*            overlaps of 1-D structures to build 2-D or 3-D structures
*            (like honeycombs, spaghetti, etc.). To implement the new
*            logic, the following routines have been written or modified:
*            GTNEXT, GTMEDI, GNEXT, GMEDIA, GTELEC, GTCKOV, GTHADR,
*            GTHION, GTMUON.
*                                                             S.Giani.
*
* GEANT 3.21 contains modifications to GTELEC, GTGAMA, GDRAY in order
*            to exploit the e.m. low energy effects introduced in 3.16
*            without any overhead in performance compared with 3.15.
*            A bug in the delta ray productions is now fixed.
*                                                        Thanks to L.Urban.
*
* GEANT 3.21 provides a ray-tracing as a new visualization tool. The
*            ray-tracing is based on the new Geant tracking and allows
*            the visualization of the boolean operations results.
*            The following routines have been written or modified:
*            GDRACK, GDSTEP, GDNINO, GDOPT, GDRAYT, GDRAW, GDINIT,
*            GTRIG, GTRIGI, GDKINE, GDLUMI, GLIGHT, GFIND, GXDRAW,
*            CDF.
*                                                             S.Giani.
*
* A new GGPERP has been written to cope with almost all the shapes.
*            It is now of general utility both for the Cerenkovs
*            and for the ray-tracing.
*                                               Thanks to R.Jones.
*
* A new set of routines to compute distances to surfaces has been
*            introduced (GVSAFE, GVGRAD, GVPSQR, GVSIGN, GVLONG).
*                                               Thanks to V.Perev.
*
* Important fix in GPHYSI: user words for media were overwriting
*            ILABS, ISYNC and ISTRA.
*                                    Thanks to S.Giani, S.Ravndal.
*
* GXOBJ has been improved to handle DETs as objects of a SET directory
*            in the HITS class.
*                                    Thanks to S.Giani, A.Dellacqua.
*
* GTNINO has been corrected in order to print the mechanism NEXT when
*            crossing boundaries.
*                                    Thanks to S.Giani, M.Maire.
*
* GFMFIN and GFMDIS are the new names for the 316 routines FMUFIN and
*        FMDIST to avoid clashes with the program library. GFMFIN has
*        also been corrected for a 316 bug affecting neutrons.
*                             Thanks to C.Zeitniz,K.Lassila,S.Ravndal.
*
* GINTRP and GINPCO have been corrected to handle sharp edges with no
*        risk of float exception.
*                                Thanks to L.Gibbons.
*
* GGPERP has been corrected in reading the TRAP parameters and a systematic
*        consistency of single precision or double precision variables in
*        the MAX,MIN,MOD operands is provided.
*                                             Thanks to S.Ravndal.
*
* FEREVV and FERHAV are now new from FLUKA.
*                                             Thanks to A.Ferrari.
*
* FEREVV has been adapted to the Geant random numbers generators.
*                                             Thanks to S.Ravndal.
*
* In GRNDMQ the option `SH' is provided to write the seeds ISEED1 and
*         ISEED2 to the event header bank.
*                                             Thanks to S.Ravndal.
*
* In GMORIN,FLINIT and GHEINI the interface messages are removed.
*                                             Thanks to S.Ravndal.
*
* In GGDPAR now PAR(3) is correctly initialized to 1.for slices of
*         a PGON.
*
*
* The seq GCNUM has been added to the deck ERTRGO in Geane.
*
*
*
* G321X and G321M are the new names for the KUIP output of the CDF.
*                                             Thanks to S.Giani.
*
* GMORIN has been modified in order to read correctly xsneut.dat
*          for MSDOS and WINNT as well.
*                                         Thanks to V.Fine.
*
* GEAMON has been modified in order to print Real and CPU Time longer
*          than 999 sec.
*                                         Thanks to R.Brun.
*
*
**********************************************************************
*                                                                    *
*                       G E A N T   3 . 2 1                          *
*                                                                    *
*                      Correction cradle 0.01                        *
*                                                                    *
*                            C E R N                                 *
*                                                                    *
*                       29/3/94  Geneva  CH                          *
*                                                                    *
**********************************************************************
*
* GZINIT and GSCKOV have been corrected (compared with 3.16) in order
*        to initialize correctly the link area for the Zebra pointers
*        of the banks relative to straggling, Cerenkovs, Asho, etc.
*        Four pointers were not seen by Mzlint and, moreover, the link
*        area (containing pointers for straggling, etc.) was initialized
*        only if using Cerenkovs.
*                                   Thanks to M.Verzocchi and R.Brun.
*
* FERHAV in Geanf was provoking a float exception due to a negative sqrt.
*        The problem was fixed thanks to a comparison with the original
*        Fluka code.
*                                   Thanks to B.Slater and S.Giani.
*
* PREPRE has been deoptimized on HP.
*                                   Thanks to A.Kulik.
*
* In GSKINE a pointer was not saved (in the previous versions as well).
*                                   Thanks to A.Dellacqua.
*
* In GTNEXT and GNEXT precision problems are handled more effectively.
*                                   Thanks to P.Ward, C.Markou and S.Giani.
*
* In GTNEXT the blocking of the volume from which particles are exiting
*        has been corrected.
*                                   Thanks to P.Ward.
*
* Problems in the interactive materials, mixtures and media definition
*        have been solved. (Routines GXCONT,GXGEOM). Idem for the 3D
*        Dspec (routine GXDRAW).
*
* In order to handle correctly calls to Gfcoor in phi (for x=0 or y=0)
*        GTMEDI, GMEDIA and GINVOL have been modified.
*                                    Thanks to P.Ward.
*
* In the ray-tracing, GDNINO has been corrected for precision problems.
*                                    Thanks to S.Giani.
*
*
**********************************************************************
*                                                                    *
*                       G E A N T   3 . 2 1                          *
*                                                                    *
*                      Correction cradle 0.02                        *
*                                                                    *
*                            C E R N                                 *
*                                                                    *
*                       25/7/94  Geneva  CH                          *
*                                                                    *
**********************************************************************
*
* In GTNEXT precision problems in phi have been solved.
*                                    Thanks to A.Rosowsky and A.Givernaud.
*
* In GDRAY a missing protection for delta ray production was added.
*                                    Thanks to L.Urban.
*
* In GINVOL the variable ingt is corrrectly reset. It was not reset in
*       all the previous versions of GEANT as well.
*                                    Thanks to R.Jones.
*
* GTCKOV, GTHADR, GTHION, GLISUR have been corrected and extended compared
*       with the first implementation in 3.16 for Cerenkov tracking.
*                                    Thanks to R.Jones.
*
* GSKPHO has been fixed for Cerenkov physics compared with the previous
*       version of GEANT (3.16).
*                                    Thanks to S.Bottai.
*
* GFTMAT had a wrong pointer to plot the muon-nucleus cross sections since
*       version 3.16. Now it is fixed.
*                                    Thanks to C.Wiebusch and S.Ravndal.
*
* GFINDS has been restored to the 3.15 functionality.
*                                    Thanks to A.Dellacqua and S.Tonse.
*
* GFANG has been fixed for a special pathological case.
*                                    Thanks to C.Zosi.
*
* GSROTM  has been fixed for a special pathological case.
*                                    Thanks to A.Vlassov.
*
* GDRAYT does not increment ievent anymore.
*                                    Thanks to P.Jacobs.
*
* GLVOLU has been fixed to recompute the pointers of the geometrical tree
*       even if the names and numbers were identical.
*                                    Thanks to R.Jones, T.Noble, S.Ravndal.
*
* GVDRAD has been fixed to compute the scope of tubs.
*                                    Thanks to K.Albiol and S.Giani.
*
* GDSPEC has been fixed to print degrees for the 3-rd parameter of sphe.
*                                    Thanks to S.Ravndal.
*
* GVDPHI has been fixed for a special pathological case (only for volumes
*       with planar surfaces).
*                                    Thanks to M.Kaspar and S.Giani.
*
* GXCONT is changed to handle correctly the variables ievent and nevent.
*                                    Thanks to P.Jacobs.
*
* SVGAM7 in Gheisha has now a protection against the log(0).
*                                    Thanks to D.Heck.
*
* FEREVV and FERHAV have been updated.
*                                    Thanks to A.Ferrari.
*
* In FLUFIN the correct mechanism is given to lmec in case of energy
*       below cut-off.
*                                    Thanks to B.Slater and S.Ravndal.
*
* In NUDISV the array anpowr is saved.
*                                    Thanks to S.Ravndal.
*
* In GMXSEC imed is used instead of nmed.
*                                   Thanks to K.L.Perini.
*
*
*
**********************************************************************
*                                                                    *
*                       G E A N T   3 . 2 1                          *
*                                                                    *
*                  Correction version 0.03 = 94b release             *
*                                                                    *
*                            C E R N                                 *
*                                                                    *
*                       18/10/94  Geneva  CH                         *
*                                                                    *
**********************************************************************
*
* In GDCGVW traslation problems have been fixed (graphics).
*                                    Thanks to J.Stepanek, S.Giani.
*
* In GLTRAC nlevel is now initialized to 0 and GTNEXT has been improved
*    further for handling precision problems.
*                                    Thanks to A.Dellacqua.
*
* GDRELX and GTELEC have been corrected for energy deposition problems.
*                                    Thanks to L.Urban.
*
* GSDVT2 has been corrected for divisions in phi.
*                                    Thanks to V.Popov.
*
* GPVOLU and GFMOTH are now able to handle cases where copy number = 1
*    is not defined.
*                                    Thanks to S.Giani, S.Nowak.
*
* GTREVE has been changed in order to avoid the loading of the graphics
*    package if not desired.
*                                    Thanks to S.Giani, I.Bird.
*
* GUPHAD, GUHADR and FLINIT give warnings and conditions for the use of FLUKA.
*                                    Thanks to A.Ferrari.
*
* GVDPHI and GVDCAR have been further improved to compute the scope of pgon.
*                                    Thanks to P.Kent.
*
* GTELEC now computes cross sections for SYNC only if there is mag. field.
*                                    Thanks to M.Maire.
*
* GPCXYZ printing format can now handle bigger dimensions.
*                                    Thanks to S.Ravndal.
*
* GDRMAT and GPRMAT headers are now consistent with GFTMAT. In GPLMAT `STEP'
*    and `RANGE' do not belong anymore to `ALL' as physical processes.
*                                    Thanks to M.Maire, S.Ravndal.
*
* GPHYSI is now setting dray=0 if loss=0. Labs, Sync and Stra can be switched
*    interactively. Decay and Sync are now also defined in vacuum.
*                                    Thanks to M.Maire, S.Ravndal.
*
* In GRNDMQ the ' ' and the 'G' options work now as described in the doc.
*                                    Thanks to S.ONeale, S.Ravndal.
*
* GPART calls GSDK anyhow to give flexibility at run time (for the interactive
*    version). The values relatives to the particles are now updated to
*    Phys.Rev. D50 1173 1994.
*                                    Thanks to S.Ravndal, F.H.Heinsius.
*
* In GDEXCA (Cadint) a bug from 316 is now fixed.
*                                    Thanks to J.Vuoskosky.
*
* GBREME and GSYNC (see the new doc for the meaning of sync=0,1,2,3) have
*    been improved and the two relative mechanism can happen at the same time.
*                                    Thanks to M.Maire.
*
*
*
**********************************************************************
*                                                                    *
*                       G E A N T   3 . 2 1                          *
*                                                                    *
*                  Correction version 0.10 = 98  release             *
*                                                                    *
*                            C E R N                                 *
*                                                                    *
*                       28/3/95  Geneva  CH                          *
*                                                                    *
**********************************************************************
*
* In GTCKOV the variable RIN1 is not reset to 0 any longer.
*                                           Thanks to A.Delpozo
*
* In GSTRAC heavy ions have now the correct itrtyp=8.
*                                           Thanks to Yfwang
*
* In GTNEXT the variable SNXT and SNXNEW are compared with BIG1 to cure
*  precision problems.
*                                           Thanks to A.Dellacqua, P.Ward.
*
* In GPVOLU and GPVOLX the variable MOTHER is now declared as CHARACTER*4.
*                                           Thanks to V.Tretyak
*
* In GGCLOS a test on IQUEST(11).le.0 has been changed into IQUEST(11).lt.0.
*                                           Thanks to P.Ward
*
* In GLTRAC nlevel is reset to 0 only if GONLY(NLEVEL).EQ.0.
*                                           Thanks to P.Ward, S.Giani
*
* In GDCGOB a bug on the unit for the angles of spheres has been fixed.
*                                           Thanks to J.Allison
*
* GPRMAT is now protected against floating point exceptions.
*                                           Thanks to R.Ruber
*
* GRNDMQ has been improved storing the seeds.
*                                           Thanks to S.Ravndal.
*
* In GTNINO the time of flight is now updated.
*                                           Thanks to S.Ravndal.
*
* In GXPHYS, GXCS, the interactive facilities have been extended.
*                                           Thanks to M.Maire
*
* GPCXYZ has a corrected format to print.
*                                           Thanks to S.Ravndal
*
* A GUXCS dummy routine has been created to extend the interactive use of COMIS.
*                                           Thanks to M.Maire.
*
* GDPRTR is now able to recognize b/w Xterminals before drawing the tree.
*                                           Thanks to S.Giani, B.Lorazo.
*
* GLVOLU has been corrected in the computation of GTRAN for the slices of
*  divided volumes.
*                                           Thanks to S.Giani.
*
* GXGEOM now allows correctly the definition of the basic shapes interactively.
*                                           Thanks to S.Giani.
*
* GETVER and GINIT are improved to extract and print automatically the version.
*                                           Thanks to M.Maire.
*
* GFTMAT and GPLMAT have been corrected in plotting the cross sections.
*                                           Thanks to S.Ravndal, G.Zholobov.
*
* GLANDZ has been protected against floating point exceptions.
*                                           Thanks to L.Urban, B.Fox.
*
* GLUDKY contains now the time of interaction (Lund).
*                                           Thanks to S.Ravndal, C.Wiebusch.
*
* GPAIRG has been protected against undefined values for the variable X.
*                                           Thanks to L.Urban, H.Ihssen.
*
* GINIT, GFFGO and GTELEC are modified in order to include a new data card,
*  ABAN, which allows to follow the electrons down to the cuts value even
*  when they are not doing physics (ABAN=0) or to propagate them up to the
*  end-point with an optimized algorithm (ABAN=2). The default is ABAN=1
*  (normal 3.21 behaviour).
*                                           Thanks to L.Urban, S.Ravndal.
*
* BRTTP has been protected in case the file flukaaf.dat is not found.
*                                           Thanks to S.Ravndal.
*
* GMORIN has been modified and GMISET has been created in order to interface
*  to the new version of Micap (from Gcalor 1.03.08) which has been introduced
*  in GEANM.
*                                           Thanks to S.Ravndal.
*
* GPRSGG and GBRSGE have been modified to assume constant cross sections
*  above 100 GeV both for pair production and for bremsstrahlung.
*                                           Thanks to G.Battistoni, L.Urban.
*
* GVDPHI has been corrected and improved for the scope computation of tubes,
*  cons and polycons which are rotated and translated at the same time.
*                                           Thanks to S.Giani, J.P.Vialle.
 
+DECK,V3_16.
*CMZ :          29/03/94  15.41.18  by  S.Giani
*-- Author :
*
*::>          VERSION  3.16/00   07/12/93 14.33.29
*
+DECK,V3_15.
*CMZ :          29/03/94  15.41.18  by  S.Giani
*-- Author :
*
*::>          VERSION  3.15/09   920408 13.02
*
*
*          ************************************************************
*          *                                                          *
*          *                                                          *
*          *                G E A N T   Version  3.15                 *
*          *                                                          *
*          *            O F F I C I A L     R E L E A S E             *
*          *                                                          *
*          *              CERN, Geneva, April 7, 1992                 *
*          *                                                          *
*          *                                                          *
*          *                                                          *
*          ************************************************************
*
*
*::>          VERSION  3.15/08   920401  8.41
*
*
*::>          VERSION  3.15/07   920331  9.42
*
*
*::>          VERSION  3.15/06   920331  8.01
*
*
*::>          VERSION  3.15/05   920329 15.41
*
*
*::>          VERSION  3.15/04   920329 13.45
*
*
*::>          VERSION  3.15/03   920327 18.49
*
*
*::>          VERSION  3.15/02   920316 12.53
*
*
*::>          VERSION  3.15/01   920316 10.18
*
*             Prerelease stamping of 3.15
*
+DECK,V3_14.
*CMZ :          29/03/94  15.41.18  by  S.Giani
*-- Author :
*
*::>          VERSION  3.14/16   901107 15.23
*
*      See PATCH,HISTORY for the description of version 3.14
*
 
+DECK,V3_13.
*CMZ :          29/03/94  15.41.18  by  S.Giani
*-- Author :
*
*::>          VERSION  3.13/05   890628 15.01
*
*      See PATCH,HISTORY for the description of version 3.14
*
+PATCH,HISTORY
+DECK,BLANKDEK.
*CMZ :  3.21/02 29/03/94  15.41.18  by  S.Giani
*-- Author :
*
*
*           ************************************************
*           *                                              *
*           *         G E A N T  version  3.16             *
*           *                                              *
*           *          Official  R E L E A S E             *
*           *       ==============================         *
*           *                                              *
*           ************************************************
*
+DECK,V_313.
*CMZ :  3.21/02 29/03/94  15.41.18  by  S.Giani
*-- Author :
*
*::>          VERSION  3.13/05   890628 15.01
*
*        Changes in GTELEC,GTHADR and GTMUON for overstopping tracks.
*        STEP and SLENG correction optimized
*        In COMMON/GCDRAW/ variable IGVIEW changed to IDVIEW
*        Routine GTRMUL recoded
*        DOUBLE precision in GINTCO and protection added.
*        Changes in GNOPG6.
*        Changes in GINME (for spheres,tubes and cones DPP.LE.0)
*        GDINIT called by GXINT
*        Particle data table updated in GPART
*        Tests on boundary conditions for IEKBIN modified in GTGAMA
*        A new user callable routine GBIRK introduced in GPHYS.
*         GBIRK may be called from GUSTEP to compute the Birk
*         correction factors for anorganic scintillators.
*
*::>          VERSION  3.13/04   890623 12.34
*
*        New version of GLANDZ and GPOISS by L.Urban
*        GRNDM calling sequence changed
*        Sequence numbers (1-->215) can be initialized
*         with data card RNDM
*                Ex:
*            RNDM  9876  1234534   initializes sequence 1
*            RNDM 45  initilizes sequence 45 with the starting
*                     seed of sequence 45
*        New routine GRANOR (copy of RANNOR for GRNDM)
*
*::>          VERSION  3.13/03   890425 12.09
*
*        Update of inline documentation DOCGBASE,DOCGKINE,DOCGTRAK
*        Deck GGCLOS modified and moved from GGEOM to GBASE
*        New deck GHCLOS (called by GGCLOS) in GBASE
*        Deck GEVKEV moved from GTRAK to GCONS
*        New decks GFNDIG,GFNHIT,GRHITS in GHITS
*        Minor bug corrected in GTELEC
*        Control of debug and removal of SNXT=BIG  in GTNEXT
*        Call to GUSTEP removed from GUVIEW
*
*::>          VERSION  3.13/02   890311 10.45
*
*        Bug corrected in GPAIRM (COMMON/GCMATE/ overwritten
*        Bug corrected in outines GDRELM and GDRELP
*           (error in AVO changed to AVOGAD)
*        Minor corrections in physics routines
*        SAVE statements added
*        Protection in GHANGL
*        Default changed to GHEISHA instead of TATINA
*          in routines GUPHAD and GUHADR
*        Bug corrected in GHTATI (NAMEC(12) instead of NAMEC(10)
*
+DECK,V_314.
*CMZ :  3.21/02 29/03/94  15.41.18  by  S.Giani
*-- Author :
C
C
C           ************************************************
C           *                                              *
C           *         G E A N T  version  3.14.16          *
C           *                                              *
C           *           Official  R e l e a s e            *
C           *       ==============================         *
C           *                                              *
C           ************************************************
C
C
C
*    The version 3.14 of GEANT is being released. Apart from a few
*    features, reported below, the new version is compatible with the
*    previous version 3.13. Substantial developments have taken place,
*    in particular in the physics and tracking areas.
*
*    In addition to the GEANT team
*     (R.Brun:CERN/CN-AS,  F.Bruyant:CERN/ECP-PI and M.Maire:LAPP),
*    many people have contributed to the new version, especially
*     - a large number of users of the previous version who reported
*       their experience, found bugs and suggested several improvements,
*     - the guinea-pigs of 3.14 who gave us essential comments during
*       our attempt to automatize computation of the tracking parameters.
*                 ** A.Givernaud (UA1), F.Nessi, V.Vercesi(UA2/LHC)
*                 ** The LHC proto collaborations
*     - H.Fesefelt(Aachen) has provided a new version of the GHEISHA
*       package with help from N.Van Eijndhoven (CERN/CN-AS)
*     - H.J Trost from ANL has reported problems in the muon-nuclear
*       interactions routines and provided the relevant corrections.
*     - P.Pedroni (Pavia) has implemented a new interface called
*       by GHEISHA for low-energy hadronic processes (See NUCRIN below).
*     - the contributors to the geometry package:
*            for the introduction of new shapes
*                ELTU by A.Solano (ZEUS)
*                HYPE by M.Corden (ALEPH and SSC)
*                CTUB by A.McPherson (CEBAF)
*            for systematic investigation of problems with the old shapes
*                R.Nierhaus (CERN/CN-AS)
*     - S.Egli (H1) has proposed an automatic optimisation for the
*       geometry at initialisation time.
*     - G.Lynch from Berkeley has investigated the multiple-scattering
*       various strategies and proposed a new algorithm.
*     - A.Rotondi and P.Montagna have proposed a new technique for the
*       fast generation of Vavilov distribution.
*       K.S.Koelbig (CERN/CN-AS) has implemented a new routine GVAVIV
*       based on their work.
*     - J.Salt (CERN/CN-AS) has implemented the graphics interface to the
*       CG package from Serpukhov with the help of E.Chernaev.
*     - The IBM team (C.Guerin, M.Roelisberger) have investigated how
*       to speed-up the program. Their work has been coordinated
*       by F.Carminati (CERN/CN-AS).
*
*     GEANT3.14 documentation
*     =======================
*      The printing of a new manual describing the new version is
*      scheduled for the end of this year. The CERN Program Library
*      will not distribute anymore the old document (version 3.11).
*
*
*     Important notice to GEANT users
*     ===============================
*
*      Following the reorganisation of the CERN research divisions
*      in July 90, R.Brun is now in charge of the Application Software
*      group (AS) in the CN division and F.Bruyant is in charge of the
*      Production support and computers Infrastructure group (PI) in the
*      ECP division. They will nevertheless continue, with M.Maire, to be
*      actively involved in the development of GEANT. Federico Carminati
*      is the coordinator of a simulation software unit in the CN-AS group.
*      Users are strongly recommended to address their questions,etc
*      directly to him (email: FCA@CERNVM.CERN.CH on BITNET). In particular,
*      feedback from users making comparisons with real data will be most
*      appreciated.
*
*      The simulation team is preparing the ground for the next version
*      of GEANT. In view of the proposed new accelerators, the following
*      items are considered with high priority:
*        - Parametrization techniques. A survey of the various methods
*          used in current experiments has been done and the implementation
*          of a new algorithm based on the GSCAN geometry + GFLASH (H1)
*          is in progress.
*        - Improvements in the geometry package. General shape definition,
*          surface based algorithms.
*        - Detector data structure and data base. Interface with CAD systems.
*        - Parallelism (at event level and below).
*
*
*......................................................................
*
* *** Compatibility with version 3.13
*     ===============================
*     - If COMMON blocks GCMULO or/and GCJLOC were included in the
*       user code, the new GEANT sequences GCMULO and GCJLOC must be
*       inserted and the code recompiled.
*     - Initialisation data structures saved with the previous versions
*       cannot be read by the new version, because the binning for
*       the cross-sections and energy loss tables has been changed.
*     - The GCPHYS variables SOLOSS,STLOSS,SOMULS,STMULS are no more
*       defined (see comments below)
*     - The GCTRAK variable IDECAD is replaced by IGAUTO
*
*
* *** MAIN CHANGES IN THE TRACKING PROCEDURES
*     =======================================
*
*    The tracking control routines GTGAMA,GTELEC,GTHADR,GTNEUT,GTMUON
*    have been largely rewritten to reflect the changes to the energy-loss
*    and multiple scattering processes.
*
*
* *** The ENERGY RANGE of the cross section and energy loss tables can
*     be fixed by the user with the new data card :
*             'ERANG'   EKMIN  EKMAX    NKBIN
*     which defines nkbin bins from Ekmin to Ekmax in a logarithmic scale.
*     The default is, as before, 90 bins from 10 Kev to 10 Tev but in
*     logarithmic scale. NKBIN must be 50<NKBIN<200.
*
*     WARNING 1 : as a consequence the common GCMULO has been changed.
*     User applications referencing GCMULO must be recompiled.
*
*     WARNING 2 : as a consequence the ZEBRA data structure JMATE
*     contains now cross-sections and energy loss tables based on the new
*     energy range. Structures saved by previous versions of GEANT cannot
*     be used by the new version.
*
*     WARNING 3 : changing the 'ERANG' data card arguments requires to
*     recreate the initialisation data structures.
*
*     WARNING 4 : for Hadrons, GEANT tabulates the energy-loss tables
*     for a proton-kinetic energy equivalent. As a consequence, the value
*     given for EKMAX must be at least 7 times the maximum kinetic energy
*     of particles to be tracked (ratio proton/pion mass).
*     For LHC/SSC simulations, we recommend ERANG 1.E-5 1.E+5 100
*     The recommended value for NKBIN is 10*LOG10(EKMAX/EKBIN).
*
*
* *** The MEAN STOPPING RANGE of a charged particle (STOPMX) is computed and
*     tabulated as a function of the kinetic energy (routine GRANGI).
*     There are tables for electrons, muons, protons. The others particles are
*     scaled from the proton table.
*     As for the other tabulated quantities, the Stopping Range can be displayed
*     with the routines GPLMAT and/or GPRMAT (keyword 'RANG').
*
*     During the tracking, the MEAN ENERGY LOSS over a given step (DEMEAN) is
*     computed from the difference of the stopping range before and after the
*     transport of the particle.
*
*
* *** ENERGY LOSS STRAGGLING : when ILOSS=2 (default) the Landau/Vavilov
*     fluctuations are applied to the mean energy loss over the step.
*     The VAVILOV distribution has been improved so that the fluctuations are
*     less dependent on the step size.
*
*     ILOSS=1 is now equivalent to ILOSS=3 i.e. restricted fluctuations are
*     applied together with delta-ray production (see routine GLANDZ).
*     The user who wish to inhibit the energy fluctuations must set ILOSS=4
*     The latter option has been kept for debug purpose only.
*
*
* *** MULTIPLE SCATTERING.  The calculation of the step size (SMULS) is new :
*     Bethe criterion taken into account, limitation of step size at low
*     energy (see routine GMULOF).
*
*     New routine GMULTS : depending on the step size the Moliere distribution,
*     or its gaussian approximation, is used.
*
*     The routines GMOLI, GMOLIE (ex Gmol), GMOLS have been slightly modified.
*
*     In the routine GMGAUS (ex Gmuls), we use a new sigma (G. Lynch LBL-28165).
*     The lateral displacement has been deleted. As a consequence the tracking
*     parameter DMAXMS is not used anymore for the control of the step size.
*     DMAXMS.LE.0 forces no multiple scattering at all in the medium.
*
*     New routine GMCOUL : for very small steps single Coulomb scatters are
*     generated instead of Moliere distribution.
*
*     By default (IMULS=1) GEANT will select automatically the algorithm to use
*     (GMCOUL, GMOLIE or GMGAUS).
*
*
* *** NEW ROUTINE GMULOF. The step for energy loss (SLOSS), the step for
*     multiple scattering (SMULS), and the step  for the curvature in a magnetic
*     field (SFIELD) can be precomputed and tabulated, at least for electrons
*     and muons. The routine GMULOF, called from GPHYSI, tabulates:
*                  SMULOF = MIN ( SMULS , SLOSS , SFIELD )
*     which is the effective step due to the "continuous processes".
*     SMULOF can be displayed with the routines GPLMAT/GPRMAT, keyword 'STEP'.
*
*
* *** Multiple scattering and energy loss computations are systematically
*     applied at each step during tracking. Therefore the GCPHYS variables
*     SOLOSS, STLOSS, SOMULS, STMULS are OBSOLETE. However, for backward
*     compatibility with 3.13, STLOSS is set equal to STEP.
*
*
* *** TRACKING PARAMETERS STMIN and DEEMAX.
*
*     The meaning of STMIN is the following : at low energy (below 1 Mev) the
*     multiple scattering condition can induce a very small step SMULOF.
*     On the other hand the Stopping Range is also small. Therefore, if the
*     Stopping Range is smaller than STMIN, the constraint SMULOF is ignored.
*     The exact condition is :
*               IF (SMULOF.LE.STMIN)   SMULOF = MIN ( STOPMX, STMIN )
*     STMIN is no more than an accelerator factor for the stopping particles.
*
*     The DEEMAX parameter remains the main tracking parameter. It governs the
*     precision of the tracking by limitating SMULOF.
*
*
* *** AUTOMATIC COMPUTATION of STMIN and DEEMAX.
*
*     By default Geant3.14 overwrites STMIN and DEEMAX. The STMIN default value
*     correspond to a stopping range of 200 Kev above CUTELE.
*     The default for DEEMAX follows the following algorithm:
*       - For non-sensitive volumes (ISVOL=0) DEEMAX is set to 0.25 for
*         materials with a radiation length x0<2cm
*         and DEEMAX=0.25-0.2/sqrt(x0) for other materials.
*       - For sensitive volumes (ISVOL.NE.0) DEEMAX=0.2/sqrt(x0)
*     These values have been tuned empirically on a variety of setups.
*
*     A new data card 'AUTO' has been implemented :
*     Setting 'AUTO' 1 is equivalent to NO data card, i.e. automatic computation
*     Setting 'AUTO' 0 : NO automatic computation, EXCEPT if STMIN and/or DEEMAX
*     has been given a negative value by the user.
*
*     WARNING : The default values above have been found reasonable for any kind
*     of medium. The unexperienced user is invited to start with automatic
*     computation. Please check the actual parameters by calling GPRINT ('TMED'
*     after the call to GPHYSI.
*
*     We STRONGLY recommend to always run in AUTO mode (default). The AUTO
*     mode makes GEANT a predictive tool if all parameters are automatically
*     computed by the system as opposed to tuning data and Monte Carlo
*     via the tracking parameters.
*
* *** GPHYSI
*     The routine GPHYSI has been improved to include additional protections
*     and to take into account the changes due to the new energy-range tables.
*     It must be noted that is mandatory to always call GPHYSI at the end
*     of the initialisation phase even when initialisation data structures
*     are read from a file.
*
* *** GPIONS
*     This new routine (a complement to GPART) defines a subset of the most
*     common "stable" elements in the nature.
*     GPIONS can be called at the initialisation stage after GPART. It creates
*     particles with GEANT identifiers 61 to 112.
*     GPIONS has been written for the heavy ions experiments in view of an
*     interface with the program FRITIOF which is being developed by
*     P.Gorodetzky (Strasbourg).
*
* *** GDEBUG
*     This new user callable routine from GUSTEP will take the following actions
*     if the flag IDEBUG=1:
*
*     IF(IDEBUG.NE.0) THEN
*       IF((ISWIT(2).EQ.1).OR.(ISWIT(3).EQ.1)) CALL GSXYZ ! store point in JXYZ
*       IF (ISWIT(2).EQ.2) CALL GPCXYZ ! step by step printed debug
*       IF (ISWIT(1).EQ.2) CALL GPGKIN ! list of particles generated during step
*       IF (ISWIT(2).EQ.3) THEN
*          IF(ISWIT(4).EQ.3.AND.CHARGE.EQ.0.)RETURN
*          CALL GDCXYZ    ! interactive drawing of trajectories
*        ENDIF
*     ENDIF
*
* *** New user callable routine GBIRK to take into account BIRK's factors.
*     ====================================================================
*    This new routine is callable from the GUSTEP routine. EDEP=DESTEP
*    if no Birk factors have been given via GSTPAR.
*      SUBROUTINE GBIRK(EDEP)
*
*     *** apply BIRK's saturation law to energy deposition ***
*     *** only organic scintillators implemented in this version MODEL=1
*
*     Note : the material is assumed ideal, which means that impurities
*            and aging effects are not taken into account
*
*     algorithm : edep = destep / (1. + RKB*dedx + C*(dedx)**2)
*
*     the values of RKB and C can be entered via :
*
*     call gstpar(imate,'BIRK1',value) to set the model (value= 1. or 2.)
*     call gstpar(imate,'BIRK2',value) to set RKB
*     call gstpar(imate,'BIRK3',value) to set C
*
*     the basic units of the coefficient are g/(Mev*cm**2)
*     because the de/dx is obtained in Mev/cm
*
*     exp. values from NIM 80 (1970) 239-244 :
*
*     RKB = 0.013  g/mev*cm**2  and  C = 9.6e-6  g**2/(Mev**2)(cm**4)
*
*
*
*
* *** GEANH news
*
*
*     a serious bug in GMUNUI has been reported by
*     Hans-Jochen Trost from ANL:
*       : convert millibarns to cm**2 by a factor 10**-27
*         and obtain therefore NA * 1 millibarn/cm**2 a
*         factor 10 smaller than in the code. Hans has verified
*         that the original code gives to high an energy loss
*         due to muon-nuclear interactions on iron by a fac-
*         tor of about 5-10, comparing to W.Lohmann et al.,
*         CERN 85-03 whose predictions have recently been
*         verified by CCFR data up to 1.2 TeV.
*     Hans has also introduced protections in GMUNU.
*
*    A new version of the GHEISHA package has been introduced by
*     H.Fesefelt (contact him for details).
*
*     The TATINA package is considered obsolete. Default routines
*     GUPHAD/GUHADR call GHEISHA. We are planning to remove the code
*     of TATINA in the coming versions of GEANT.
*
*
* *** NUCRIN: A new model for hadronic showers at low energies
*     ========================================================
*
*
*    NUCRIN (see ref.1) simulates hadron-nucleus ( A > 3) inelastic
*    interactions from a few MeV/c up to about 4.5 GeV/c laboratory
*    momentum of the incoming particle.
*    NUCRIN is automatically called by the GHEISHA routine GHEISH
*    when the flag IHADR=3 (set by data card HADR).
*    It is assumed that these reactions  are the superimposition of three
*    basic processes:
*
*    (a) inelastic collision of the projectile hadron (allowed particles are :
*        p,pbar,n,nbar,pi0,pi+,pi-,k+,k-,k0,k0bar,lamda0,lamda0bar,sigma+,
*        sigma-,sigma0) with a target nucleon in the nucleus.
*        This interaction is simulated,taking into account of the nucleon
*        Fermi momentum,  using HADRIN (see ref.2) program.
*        The corresponding physical model is based on the experimental evidence
*        that, in the selected momentum range,the inelastic cross section shows
*        the typical threshold and resonance behaviour of meson production:
*        the primary hadron-nucleon system is excited to an isobaric state
*        which then decays into hadrons or other resonances.
*
*        If the interacting nucleus is hydrogen,HADRIN can also be used
*        in a separate way to simulate hadron-proton reaction.
*
*    (b) induced intranuclear cascade with resulting proton and neutron
*        emission;
*
*    (c) nuclear evaporation and deexcitation from residual nucleus. At the
*        output the total energy available for these processes is given as
*        "excitation energy".
*
*    The mean excitation and cascade energies and the average multiplicities
*    of cascade particles are parametrized, according to experimental
*    distributions.
*    In each event their value are sampled from gaussian distribution:
*    if they fall in the permitted kinematical region, energy and types of
*    cascade nucleons are calculated and the remaining energy is assigned to
*    the incoming particle.
*    For hadron-nucleon interactions all relevant kinematic variables are
*    Lorentz-trasformed into the target nucleon rest system. If interaction
*    kinetic energy is greater than the total available collision energy
*    a new Fermi momentun is sampled, otherwise an event is generated with
*    HADRIN,in which decays modes of 107 particle and resonances into about
*    450 different channels are tabulated and outgoing particle directions
*    and momenta are chosen to reproduced experimental momentum transfer
*    distributions.
*    Final state particles kinematical variables are transformed back into
*    laboratory system; reaction and sampled event energies are again compared:
*    if their difference is negative, energy is not conserved and generation
*    has to be started once more with a new Fermi momentum sampling or if it
*    is,on the contrary positive, particle momenta and energies are corrected
*    to reach conservation.
*    The sampled events conserve the energy, the momentum, the electric and
*    baryonic charge  and the strangeness.
*    NUCRIN and HADRIN are initialised, by default, before event generation,
*    with a call to subroutines HADDEN and CHANWX which estabilish internal
*    weight tables and decay channels.
*
*    -----------------------------------------------------------------------
*    (1) K. Hanssgen, J. Ranft , Comp. Phys. Comm. 39, 53 (1986)
*    (2) K. Hanssgen, J. Ranft , Comp. Phys. Comm. 39, 37 (1986)
*
*
* *** GEOMETRY PACKAGE: New shapes and many improvements
*     ==================================================
*
*    Automatic optimisation of the geometry structure:
*    A new data card OPTI has been introduced (S.Egli H1).
*      OPTI -1 : disable optimisation
*      OPTI  0 : only volumes GSORDered are optimised (as in 3.13)
*      OPTI  1 : volumes GSORDered are optimised along the axis
*                specified. All the other volumes are automatically
*                optimised along the best axis (1 to 7).
*      OPTI  2 : All volumes are optimised along the best axis.
*                Volumes for which GSORD was called are also optimised.
*      The default value for OPTI is 0.
*      In case OPTI >0, the result of the optimisation is printed.
*      The automatic optimisation is done at initialisation time by
*      a new routine GGORDQ called by GGCLOS.
*
*
*    Most of the geometry routines have been revisited and consolidated.
*    The following new shapes are available.
*
*      'ELTU'    is a cylinder with an elliptical section.
*                It has three parameters: the ellipse semi-axis in X,
*                the ellipse semi-axis in Y and the half length in Z.
*                Given the equation of the conical curve:
*                     X**2/A**2 + Y**2/B**2 = 1,
*                describing the volume,then:       PAR(1) = A
*                                                  PAR(2) = B
*                                                  PAR(3) = DZ
*                ELTU is not divisible.
*
*      'HYPE'    is a hyperbolic tube, ie the inner and outer surfaces
*                are hyperboloids, as would be formed by a system of
*                cylindrical wires which were then rotated
*                tangentially about their centres.  The 4 parameters
*                are the inner and outer radii, the half length in z,
*                and the "stereo angle" theta in degrees, such that
*                the hyperbolic surfaces are given by
*                r**2 = (z*tan(theta))**2 + (r at z=0)**2
*
*      'CTUB'   (for cut tube) is a TUBS whose end planes are not
*               perpendicular to the z axis. It has 11 parameters :
*               the 5 of the TUBS shape plus the components of the normal
*               to the end plane at the lower z (LXL,LYL,LZL) and
*               those at the higher z (LXH,LYH,LZH).
*               DZ means the half length in z for x = y = 0
*
*
*     Bugs have been fixed in the routines GNPCON, GNPGON and GNOPGO.
*
*     The new version of GNOTRP requires an extended parameter array.
*     In addition to the 11 specified parameters (of which 4 are
*     modified in subroutine GSVOLU or GSPOSP), the coefficients of
*     the implicit normalized plane equation for the 6 surfaces
*     of the hexahedron are stored.
*
*     IMPORTANT NOTE concerning the TRAP shape
*     ========================================
*     The Geant documentation describes the Geant shape TRAP as follows:
*
*          TRAP is a general trapezoid, i.e. one for which the
*          faces perpendicular to z are trapezia and their
*          centres are not at the same x, y. It has 11
*          parameters: Dz the half length in z, Th & Phi the
*          polar angles from the centre of the face at z=-Dz
*          to that at z=+Dz, H1 the half length in y  at
*          z=-Dz, LB1 the half length in x at z=-Dz and y=low
*          edge, LH1 the half length in x at z=-Dz and y=
*          high edge, Th1 the angle w.r.t. the y axis from
*          the centre of the low y  edge to the centre of the
*          high y edge, and H2, LB2, LH2, Th2 the
*          corresponding quantities to the 1s but at z=+Dz.
*
*     This seems to describe a general hexahedron with 3 constraints:
*     2 constraints follow from the fact that two faces are "trapezia".
*     (twice 2 edges parallel).
*     The 3rd constaint is that two faces are parallel, namely the "trapezia"
*     faces are both perpendicular to the Z-axis.
*     We will assume that shape TRAP is a hexahedron with 3
*     constraints and direct our attention to the degrees of freedom
*     of such a shape.
*     The shape has 8 vertices and therefore 24 coordinates.
*     If we first consider a volume with 8 vertices and 6 surfaces,
*     but do not make the assumption that the surfaces are plane,
*     we see that this shape has 18 degrees of freedom.
*     We loose 3 coordinates because of the translational invariance
*     of the shape and 3 coordinates because of its rotational
*     invariance.
*     If we now assume that the shape is a hexahedron, that is
*     bounded by plane surfaces, we have 6 constraints, one for each
*     surface, and our hexahedron has 12 degrees of freedom.
*     Considering the 3 constraints mentioned in the beginning,
*     we conclude that our shape trapezohedron has 9 degrees of freedom.
*     It is however described by 11 parameters.
*     Therefore we must either drop our assumption that shape TRAP is
*     a hexahedron, that is bounded by parallel surfaces, or we must
*     request that the user specifies the 11 parameters with certain
*     constraints.
*
*     To check that the user respected the constraints, we check the
*     coplanarity of the faces during the specification phase of shape TRAP.
*     We know the vertex coordinates, and we have the indices to the
*     vertices for each face.
*     Assuming that a face is tetrahedron, we compute its volume.
*     We divide by the surface of the base triangle, and get a measure
*     for the coplanarity of the face, which is actually a distance.
*     A warning message is printed in case of no-coplanar faces.
*
*    GSORD problem
*    =============
*    A bug has been found in GTNEXT (and alike) which is induced by a bug of
*    logic in GSORD/GGORD. User calls to GSORD, with ordering axis 4 (Rxy)
*    or 5 (Rxyz), may cause problems when the ordered contents are such that
*    one can jump from a given content to another one without crossing a
*    content which, along the given axis, occupies a position in between the
*    start and the end contents : e.g. coaxial TUBES with different Z-lengths
*    should not in general be ordered by GSORD along the axis IAX=4 (Rxy).
*    However, part of the information provided by such calls can still be
*    used, in the static context of GTMEDI for instance. Therefore, the
*    following convention has been introduced: If the user is sure that the
*    contents are positioned in such a way that the anomaly mentioned above
*    cannot occur, the call to GSORD can be modified by using IAX=14 (instead
*    of 4), or 15 (instead of 5), in which case the ordering techniques will
*    also be used in the dynamic context of GTNEXT. In case of doubt, the
*    user has better to keep the old code, with IAX=4 or 5.
*
* *** DRAWING PACKAGE: Interface to the CG package
*     ============================================
*
*    An interface to the CG (Combinatorial Geometry) package written
*    at Serpukhov by E.Cernaev et al is now available. The new package
*    is automatically called if the option 'HIDE' is selected. eg.
*
*         CALL GDOPT('HIDE','ON')  in a Fortran program
*         DOPT HIDE ON/OFF  in the interactive version
*
*    This new facility includes a hidden line and surface algorithm
*    which permits nice 3-D views of a detector.
*    In the frequent case of hermetic 4 PI detectors, a facility
*    to remove a box (The Cutting BOX) is also implemented. The Cutting BOX
*    specifies a region of the detector which must be Cut to see inside.
*    A new interactive command CBOX is available to specify the box limits.
*
*    The CG system is part of the GEANG file (See Patches CGCDES,CGPACK)
*    To activate the CG package, +USE,CG,*GEANG.
*
*
* *** The SCAN geometry
*     =================
*   A new Patch,GSCAN has been introduced on a provisional basis in the GEANG
*   file. See discussion about SCAN below.
*
* *** GUPARA: Parametrization interface
*     =================================
*   A new FFREAD data cards PCUT can be used to set parametrization cuts.
*   The first argument of the PCUT card is a integer flag which turns or
*   on off the parametrization mechanism. If the parametrization is turned on
*   and a particle falls below one of the 5 cuts specified by the PCUT card
*   (similar in kind to the cuts specified by the card CUTS), then the
*   routine GUPARA is called and tracking of the particle is abandoned. This
*   mechanism is provided for applying parametrization schemes which
*   replace a particle by a parametrized shower when it falls below
*   a certain threshold.
*
*.............................................................................
*
*
* *** GXINT: Interactive version
*     ==========================
*
*      New menu FORTRAN: CALL,FILE,CLOSE,FORTRAN
*      New menu HISTOGRAM: FILE,LIST,PLOT,DELETE,LEGO,HRIN,HROUT,PUT,GET
*                          ZONE,SET,OPTION,NULL
*      New menu PICTURE: FILE,LIST,DELETE,SCRATCH,PLOT,RENAME,IZOUT,IZIN,IGSET
*      New menu SCAN: PHI,THETA,SLIST,VERTEX,SFACTORS,LSCAN,HSCAN
*      New menu PHYSICS: ANNI,BREM,COMP,DCAY,DRAY,HADR,LOSS,MULS,MUNU,PAIR,
*                        PFIS,PHOT,RAYL,CUTS,PHYSI
*
*      The menus FORTRAN,HISTOGRAM and PICTURE are subsets of the similar
*      menus in the PAW system.
*
*      The menu PHYSICS gives the possibility to modify the run conditions.
*      In case physics conditions are changed (LOSS,DRAY,MULS,CUTS) it is
*      mandatory to call the command PHYSI (which calls GPHYSI) to recompute
*      the cross-section and/or energy loss tables.
*
*      The menu FORTRAN is similar to the FORTRAN menu of PAW. It contains
*      in addition a new very important command FORTRAN which gives the
*      possibility to describe the geometry (UGEOM) in a Fortran routine
*      that can be edited interactively with the local editor and also
*      executed interactively under the control of the Fortran interpreter
*      COMIS.
*
* ***  GEANT >FORTRAN  FNAME
*
*      The routines in the file FNAME will be compiled by COMIS.
*      If routines with names: UGEOM,GUKINE,GUOUT,UGLAST are found,
*      then they will be automatically called by GXINT instead of
*      the routines with the same names compiled with the standard
*      Fortran compiler and linked with the application.
*      The user callable routines from the GEANT library as well as
*      routines from PACKLIB (HBOOK,HPLOT,HIGZ,ZEBRA) may be called
*      from these user routines. All GEANT common blocks may be
*      referenced.
*      In case where the routine UGEOM is called several times,
*      it is important to DROP all the initialisation data structures
*      JVOLUM,JMATE,JTMED,etc already in memory by using the routine GIDROP.
*
*       Example of an interactive session where the routine UGEOM is modified:
*
*         GEANT > Edit ugeom.for
*         GEANT > Fortran ugeom.for
*         GEANT > Call GIDROP
*         GEANT > Call UGEOM
*         GEANT > Dtree
*         GEANT > Edit ugeom.for
*         GEANT > Fortran ugeom.for
*         GEANT > Call GIDROP
*         GEANT > Call UGEOM
*         GEANT > Dtree
*
*      If FNAME='-', calls to user routines is reset and standard
*      routines called instead.
*
* *** Interface to CG
*    The command DOPT has a new option HIDE (DOPT HIDE ON/OFF)
*    Type DOPT without parameters to get the list of all currently
*    available options.
*    When this option is ON, the subsequent graphics commands DCUT/DRAW
*    will invoke the CG system for hidden line/surface removal.
*    This algorithm requires a lot of memory and time. It is recommended
*    to set the visibility attributes (SATT SEEN 0) for many of the
*    volumes in case the command aborts for lake of memory or time.
*    This option can also be used with the view banks mechanism (DOPEN)
*
*    New command CBOX to specify the boundaries of the cutting box.
*
* *** PLMAT
*
*   The existing command PLMAT offers the new possibility to plot
*    various physics parameters (cross-sections, energy-loss tables,etc)
*   in graphics format (via HPLOT) if MECAN=ALLG
*   The Keywords 'STEP' or 'RANG' may also be specified to produce
*   an alphanumeric output of the step-size and energy-range tables.
*
*        PLMAT  IMATE IPART MECAN [ IDM ]
*
*       IMATE      I 'Material number'
*       IPART      I 'Particle number'
*       MECAN      C 'Mechanism'
*       IDM        I 'ID mode option' D=0
*
*
* *** New menu SCAN. The SCAN geometry
*     ================================
*
*    This new menu contains various commands for an interactive interface
*    to the SCAN geometry
*    The SCAN geometry algorithm has been designed as a tool to improve
*    the tracking speed. This new facility still requires substantial
*    developments in view of the new parametrisation algorithms which
*    are developed in collaboration between the CN/AS group and the
*    LEP/HERA/LHC/SSC and other interested groups.
*    The SCAN facility is being introduced in the version 3.14 on a trial
*    basis to familiarise potential users with the concept.
*    The SCAN geometry data structure JSCAN is automatically generated
*    either by calling the GSCAN routine in the PATCH,GSCAN of GEANG
*    or interactively by using the commands in the new menu SCAN.
*    Starting from the normal geometry data structure created by GSVOLU,
*    GSPOS,GSDVN,etc, the detector may be divided into a simpler geometry
*    structure (theta,phi) or (eta,phi).
*    Geantinos are tracked starting from a VERTEX position through
*    the NPHI,NTETA divisions. For each division, the SCAN procedure
*    will insert into the JSCAN data structure the following information
*    for every main detector component specified in the SLIST command
*    in the spherical R direction:
*      Total number of radiation lengths up to entry in each R
*      Total number of absorption lengths
*      Detector identifier
*    When the interactive command TRIGGER is entered, the number of
*    Geantinos specified as parameter will be tracked. In case the
*    data structure JSCAN is not empty, the program will automatically
*    start with the first PHI,TETA division not yet filled. As the
*    number of Geantinos to be tracked can be very large (depending
*    on the granularity) this gives the possibility to fill the JSCAN
*    data structures in several passes.
*
*
*     New menu SCAN: PHI,TETA,SLIST,VERTEX,SFACTORS,LSCAN,HSCAN
*
* ==>   /SCAN/PHI  NPHI [ PHIMIN PHIMAX ]
*
*        NPHI       I 'Number of PHI divisions' D=90
*        PHIMIN     R 'Minimum PHI in degrees' D=0
*        PHIMAX     R 'Maximum PHI in degrees' D=360
*
*        To specify number of divisions along PHI.
*
*
* ==>   /SCAN/TETA  NTETA TETMIN TETMAX [ DIVTYP ]
*
*        NTETA      I 'Number of TETA divisions' D=90
*        TETMIN     R 'Minimum value of TETA' D=0
*        TETMAX     R 'Maximum value of TETA' D=180
*        DIVTYP     I 'Type of TETA division' D=1 R=1:2
*
*        To specify number of divisions along TETA.
*        If DIVTYP=1 divisions in degrees following the THETA angle.
*        If DIVTYP=2 divisions in pseudo-rapidity ETA.
*
*
* ==>   /SCAN/SLIST  LIST
*
*        LIST       C 'List of master volumes'
*
*        Only boundary crossings of volumes given in LIST
*        will be seen in the SCAN geometry.
*
*
* ==>   /SCAN/VERTEX  VX VY VZ
*
*        VX         R 'Scan vertex origin' D=0
*        VY         R 'Scan vertex origin' D=0
*        VZ         R 'Scan vertex origin' D=0
*
*        All Geantinos tracked will start from position VX,VY,VZ.
*
*
* ==>   /SCAN/SFACTORS  FACTX0 FACTL FACTR
*
*        FACTX0     R 'Scale factor for SX0' D=100
*        FACTL      R 'Scale factor for SL' D=1000
*        FACTR      R 'Scale factor for R' D=100
*
*        Set scale factors for SX0,SL and R. The given scale factors must be
*        such that:
*
*          SX0*FACTX0 < 2**15-1 (32767)
*          SL*FACTL   < 2**10-1 (1023)
*          SR*FACTR   < 2**17-1 (131071)
*
*
* ==>   /SCAN/LSCAN  ID [ VOLUME CHOPT ]
*
*        ID         I 'Lego plot identifier' D=2000
*        VOLUME     C 'Volume name' D='XXXX'
*        CHOPT      C 'List of options' D='OPX' R=' ,O,P,I,X,L'
*
*        Generates and plot a table of physics quantities such as
*        the total number of radiation lengths or interaction lengths
*        in function of the SCAN parameters TETA,PHI.
*
*          CHOPT='O' table is generated at Exit  of VOLUME.
*          CHOPT='I' table is generated at Entry of VOLUME.
*          CHOPT='X' radiation lengths
*          CHOPT='L' Interaction lengths
*          CHOPT='P' Plot the table
*
*        If VOLUME='XXXX' Mother volume is used.
*
*
* ==>   /SCAN/HSCAN  IDPHI [ VOLUME CHOPT ]
*
*        IDPHI      I 'Histogram/phi identifier' D=1000
*        VOLUME     C 'Volume name' D='XXXX'
*        CHOPT      C 'List of options' D='OPX' R=' ,O,P,I,X,L'
*
*        Generates and plot an histogram of physics quantities such as
*        the total number of radiation lengths or interaction lengths
*        in function of the SCAN parameter TETA for a given value of PHI.
*
*          CHOPT='O' histogram is generated at Exit  of VOLUME.
*          CHOPT='I' histogram is generated at Entry of VOLUME.
*          CHOPT='X' radiation lengths
*          CHOPT='L' Interaction lengths
*          CHOPT='P' Plot the histogram
*
*        If VOLUME='XXXX' Mother volume is used.
*        The histogram identifier IDPHI is used to also identify which
*        PHI division to plot. IPHI=MOD(IDPHI,1000).
*        If IPHI=0, then all PHI divisions are generated (not plotted)
*        with histogram identifiers IDPHI+PHI division number.
*
*
*
*
*
*
* ***   New commands FILE,REND,MDIR,CDIR,IN,OUT in the RZ menu.
*       =======================================================
*
*
* ==>   RZ/FILE  LUN FNAME [ CHOPT ]
*
*        LUN        I 'Logical unit number'
*        FNAME      C 'File name'
*        CHOPT      C 'Options' D=' ' R=' ,U,N,I,O'
*
*        Open a GEANT/RZ file. Call GRFILE (See below).
*
*         CHOPT=' ' readonly mode
*         CHOPT='U' update mode
*         CHOPT='N' create new file
*         CHOPT='I' Read all structures from existing file
*         CHOPT='O' Write all structures on file
*
*
* ==>   RZ/OUT  OBJECT [ IDVERS ]
*
*        OBJECT     C 'Structure name'
*        IDVERS     I 'Version number' D=1
*
*        Write data structure identified by OBJECT,IDVERS to RZ file.
*        Call GROUT (See below)
*
*          MATE write JMATE structure
*          TMED write JTMED structure
*          VOLU write JVOLUM structure
*          ROTM write JROTM structure
*          SETS write JSET  structure
*          PART write JPART structure
*          SCAN write JSCAN structure
*          *    write all structures
*
* ==>   RZ/IN  OBJECT [ IDVERS ]
*
*        OBJECT     C 'Structure name'
*        IDVERS     I 'Version number' D=1
*
*        Read data structure identified by OBJECT,IDVERS into memory.
*        Call GRIN (See below)
*
*          MATE read JMATE structure
*          TMED read JTMED structure
*          VOLU read JVOLUM structure
*          ROTM read JROTM structure
*          SETS read JSET  structure
*          PART read JPART structure
*          SCAN read JSCAN structure
*          *    read all structures
*
*
*
*
* *** New routines for direct access I/O in the GIOPA package
*     =======================================================
*
* ==>    SUBROUTINE GRFILE(LUN,CHFILE,CHOPT)
*.
*.           Routine to open a GEANT/RZ data base.
*.
*.           LUN logical unit number associated to the file
*.
*.           CHFILE RZ file name
*.
*.           CHOPT is a character string which may be
*.              'N' To create a new file
*.              'U' to open an existing file for update
*.              ' ' to open an existing file for read only
*.              'Q' The initial allocation (default 1000 records)
*.                  is given in IQUEST(10)
*.              'I' Read all data structures from file to memory
*.              'O' Write all data structures from memory to file
*.
*.           Note:
*.             If options 'I' or 'O' all data structures are read or
*.                written from/to file and the file is closed.
*.             See routine GRMDIR to create subdirectories
*.             See routines GROUT,GRIN to write,read objects
*.
*.
*.
*. ==>    SUBROUTINE GROUT(CHOBJ,IDVERS,CHOPT)
*.
*.           Routine to write GEANT object(s) in the RZ file
*.             at the Current Working Directory (See RZCDIR)
*.           Input is taken from the data structures in memory
*.               (VOLU,ROTM,TMED,MATE,SETS,PART,SCAN)
*.
*.           CHOBJ  The type of object to be written:
*.                  MATE write JMATE structure
*.                  TMED write JTMED structure
*.                  VOLU write JVOLUM structure
*.                  ROTM write JROTM structure
*.                  SETS write JSET  structure
*.                  PART write JPART structure
*.                  SCAN write LSCAN structure
*.                  INIT write all initialisation structures
*.
*.           IDVERS is a positive integer which specifies the version
*.               number of the object(s).
*.
*.           CHOPT List of options (none for the time being)
*.
*.        Note that if the cross-sections and energy loss tables
*.           are available in the data structure JMATE, then they are
*.           saved on the data base.
*.
*.
*.        The data structures saved by this routine can be retrieved
*.        with the routine GRIN.
*.
*.        Before calling this routine a RZ data base must have been
*.        created using GRFILE.
*.        The data base must be closed with RZEND.
*.          Ex: if LUN=1 CALL RZEND('LUN1')
*.
*.        The RZ data base can be transported between different
*.        machines in using the ZEBRA RZ utility RZTOFZ.
*.
*.        The interactive version of GEANT provides facilities
*.        to interactively update, create and display objects.
*.
*.          Example.
*.
*.          CALL GRFILE(1,'Geometry.dat','N')
*.          CALL GROUT('VOLU',1,' ')
*.          CALL GROUT('MATE',1,' ')
*.          CALL GROUT('TMED',1,' ')
*.          CALL GROUT('ROTM',1,' ')
*.          CALL GROUT('PART',1,' ')
*.          CALL GROUT('SCAN',1,' ')
*.          CALL GROUT('SETS',1,' ')
*.
*.          The same result can be achieved by:
*.          CALL GRFILE(1,'Geometry.dat','NO')
*.
*.
*.
*. ==>    SUBROUTINE GRIN(CHOBJ,IDVERS,CHOPT)
*.
*.           Routine to read GEANT object(s) fromin the RZ file
*.             at the Current Working Directory (See RZCDIR)
*.           The data structures from disk are read in memory
*.               (VOLU,ROTM,TMED,MATE,SETS,PART,SCAN)
*.
*.           CHOBJ  The type of object to be read:
*.                  MATE read JMATE structure
*.                  TMED read JTMED structure
*.                  VOLU read JVOLUM structure
*.                  ROTM read JROTM structure
*.                  SETS read JSET  structure
*.                  PART read JPART structure
*.                  SCAN read LSCAN structure
*.                  INIT read all initialisation structures
*.
*.           IDVERS is a positive integer which specifies the version
*.               number of the object(s).
*.
*.           CHOPT List of options (none for the time being)
*.
*.
*.        The RZ data base has been created via GRFILE/GROUT
*.
*.
*.          Example.
*.
*.          CALL GRFILE(1,'Geometry.dat',' ')
*.          CALL GRIN ('VOLU',1,' ')
*.          CALL GRIN ('MATE',1,' ')
*.          CALL GRIN ('TMED',1,' ')
*.          CALL GRIN ('ROTM',1,' ')
*.          CALL GRIN ('PART',1,' ')
*.          CALL GRIN ('SCAN',1,' ')
*.          CALL GRIN ('SETS',1,' ')
*.
*.          The same result can be achieved by:
*.          CALL GRFILE(1,'Geometry.dat','I')
*.
*.
*.
* ==>     SUBROUTINE GRMDIR(CHDIR,CHOPT)
*.
*.
*.           Routine to create a subdirectory
*.
*.           CHDIR Subdirectory name
*.
*.           CHOPT is a character string which may be
*.              ' ' To create a subdirectory
*.              'S' To create a subdirectory and set the new
*.                  Current Directory to this directory.
*.
*.
 
+DECK,V_315
*CMZ :  3.21/02 29/03/94  15.41.18  by  S.Giani
*-- Author :
*
*
*        Maintenance and support for the GEANT MonteCarlo system
*        are performed by the Simulation Section of the CERN
*        Computing and Networks division. For any problem please
*        contact:
*
*                        Federico Carminati
*                        CERN-CN
*                        1211 Geneva 23
*                        Tel:        +41 22 767.4959
*                        Telefax:    +41 22 767.7155
*                        E-mail:
*                        BITnet/EARN: FCA@CERNVM
*                        DECnet     : VXCERN::FCA (Node 22.190)
*                        Internet   : fca@cernvm.cern.ch
*
*        An electronic GEANT discussion list has been set up on CERNVM.
*        To be included in the mailing list it is enough to send the
*        following message:
*
*       TELL LISTSERV AT CERNVM SUBSCRIBE LGEANT Firstname Lastname Inst
*
*        People who do not dispose of a TELL (or equivalent) bitnet
*        command should send a mail to LISTSERV@CERNVM containing the
*        only line:
*
*                   SUBSCRIBE LGEANT Firstname Lastname Inst
*
*================================= History
*
*===> 20/NOV/1990
*
*        Current plans set the release of GEANT 3.15 around the third
*        quarter of 1991.
*
*===> 27/NOV/1990
*
*        Correction in GTRACK to set correctly the value of PREC
*        to match machine precision. Thanks to Stephan Egli and
*        M.Maire.
*        Introduced in the 314 correction cradle.
*
*===> 28/NOV/1990
*
*        Correction in GNTUBE to avoid square root of a negative
*        number. Thanks to M.Maire
*        Introduced in the 314 correction cradle.
*
*        Eliminate TOFG=0 from GINIT, already done in GTRIGI
*        Thanks to F.Carminati
*        Introduced in the 314 correction cradle.
*
*===> 29/NOV/1990
*
*        UNIX and BSLASH flags correctly set inside *GEANT.
*        Thanks to A.Nathaniel
*        GPMATE now prints also the components in case of
*        mixtures. If NUMB is <0 then materials from 1 to
*        -NUMB are printed. Thanks to Stephan Egli.
*
*        Corrections in GRGET (obsolete), GGET, GRIN to reset
*        correctly the number in GCNUM. Thanks to Stephan Egli
*        Introduced in the 314 correction cradle.
*
*===> 30/NOV/1990
*
*        New version of GNOELT and GNELTU, thanks to Yoshihisa Iga
*        and R.Nierhaus
*        Introduced in the 314 correction cradle.
*
*        Correction in GTRAK, all mechanisms turned off in the
*        vacuum. Thanks to S.Egli
*        Introduced in the 314 correction cradle.
*
*
*===> 03/DEC/1990
*
*        New routine GXPICK for the interactive version (Command
*        DRAWING/PICK) to pick a point in a detector and return
*        volume/material characteristics. Thanks to S.Egli.
*
*===> 04/DEC/1990
*
*        MAXNOD from 2000 to 8000 in GDTR0. Suggestion by S.Egli.
*        Introduced in the 314 correction cradle.
*
*        Bug corrected in GGCLOS, do not touch ISEARC in case
*        of user search (ISEARC.GT.0). Thanks to D.Ward.
*        Introduced in the 314 correction cradle.
*
*===> 05/DEC/1990
*
*        Correction in TWOB, get correctly Tmin and Tmax and
*        their distribution. Thanks to Marko Mikuz.
*        Introduced in the 314 correction cradle.
*
*===> 06/DEC/1990
*
*        Correction in TWOCLU and GENXPT to improve energy
*        conservation. Thanks to S.Egli.
*        Introduced in the 314 correction cradle.
*
*===> 11/DEC/1990
*
*        Generic function LOG introduced in GHFRAK. Generic
*        functions MAX and MIN introduced in several routines
*        in GGEOM (HYPE) and CGPACK. Generic SIN, COS, ATAN and
*        SQRT introduced in CGPACK. Thanks to Federico Carminati.
*        Introduced in the 314 correction cradle.
*
*===> 13/DEC/1990
*
*        GTAU routine to be obsoleted.
*
*        Supporting link for the LSCAN data structure mispelled
*        in several places. Corrected now. Thanks to Isabel Josa.
*        Introduced in the 314 correction cradle.
*
*        Unused variable IPOT eliminated from GHFFER.
*
*        Changes in the interactive part for ATC GKS which does
*        not use FORTRAN unit for metafiles. (routines GXINT and
*        GXGCON). Thanks to W.Koellner
*
*===> 14/DEC/1990
*
*        REAL*8 changed to DOUBLE PRECISION in CGPACK.
*        Life of the D+/- mesons was 100 times too short.
*        Thanks to Cheng He Sheng.
*        Introduced in the 314 correction cradle.
*
*===> 19/DEC/1990
*
*        Modification in GDRAW and GDSPEC to correct a bug.
*        Modifications in GLVOLU not to print a warning message
*        caused by drawing.
*        Introduced in the 314 correction cradle.
*
*===> 20/DEC/1990
*
*        Correction in GRAYLI affecting Rayleigh effect in
*        mixtures.
*        Introduced in the 314 correction cradle.
*
*        Recode of GRAYLI and GHESIG to be safer with respect
*        to compiler optimization.
*        Thanks to Rafi Yaari.
*
*===> 8/JAN/1991
*
*        Corrections in GRGET, GGET, GRIN to set correctly
*        NPART, NTMED, NMATE, NVOLUM. Thanks to Lee Roberts.
*        Introduced in the 314 correction cradle.
*
*        New meaning for ISVOL. If <0 the material is not a
*        a detector but the tracking parameters are the same
*        as in the case ISVOL>0 (sensitive medium).
*        Thanks to Michel Maire.
*        Introduced in the 314 correction cradle.
*
*===> 9/JAN/1991
*
*        TMAXFD not recomputed with IGAUTO=1 if the value given
*        by the user >= 0. Default value reset to 20. instead of
*        60. degrees. Thanks to W.Mueller and M.Maire
*        Introduced in the 314 correction cradle.
*
*===> 10/JAN/1991
*
*        Corrections in GPFIS, GPFISI and GPHYSI for the fotofission
*        and fotoabsorbtion (Giant resonance) of photons on Uranium
*        and plutonium. Thanks to Harm Fesefeld.
*        Introduced in the 314 correction cradle.
*
*        Correction in GPHYSI in case ILOSS=2 and more than one
*        tracking medium with the same material number then a
*        spurious error message was printed. Thanks to Kevin Sparks
*        Introduced in the 314 correction cradle.
*
*        Corrections in GENXPT, TWOCLU, TWOB, CINEMA and EXNU.
*        Thanks to Harm Fesefeldt.
*        Introduced in the 314 correction cradle.
*
*===> 11/JAN/1991
*
*        Correction in GPPART in case of user words. Thanks to Walter
*        Mueller.
*        Introduced in the 314 correction cradle.
*
*        Correction in GSTMED to protect for EPSIL <=0. Thanks to
*        Michel Lefebvre.
*        Introduced in the 314 correction cradle.
*
*===> 14/JAN/1991
*
*        Correction in GRGET to read the banks in the correct
*        division. Thanks to M.Maire.
*        Introduced in the 314 correction cradle.
*
*        Improvement of GRIN, GROUT. New global keywords KINE and
*        TRIG can now be used. Thanks to Federico Carminati
*        Introduced in the 314 correction cradle.
*
*===> 17/JAN/1991
*
*        Correction in GSVOLU, GSDVN, GSDVN2, GSDVT, GSDVT2 not to
*        use uninitialized LINATT, set by GDINIT. This should take
*        care of the problem of empty drawings. Thanks to Simone Giani.
*        Introduced in the 314 correction cradle.
*
*        Correction in GPKINE to print correctly user words and vertex
*        information. Thanks to Kevin Sparks.
*        Introduced in the 314 correction cradle.
*
*        Correction in GPVERT to print correctly user words and vertex
*        information. Thanks to Soren G. Frederiksen.
*        Introduced in the 314 correction cradle.
*
*===> 18/JAN/1991
*
*        Max. GCKING stack size parametrized. The actual value of the
*        stack is not changed (100), but can be redefined in the
*        sequence GCKMAX. Important for LHC studies.
*        Thanks to Harm Fesefeldt.
*
*        Correction in GPRINT to call correctly GPDIGI and GPSETS.
*        Thanks to Michel Maire.
*        Introduced in the 314 correction cradle.
*
*===> 22/JAN/1991
*
*        New facilities of DZDOC introduced in the interactive menu.
*        Patchy flag (DZDOC) to assure backward compatibility.
*        Thanks to O.Schaile
*
*===> 31/JAN/1991
*
*        New facility using the JUMPT package to call user routines.
*        Patchy flag (USRJMP) to assure bacward compatibility.
*        Thanks to F.Carminati
*
*===> 05/FEB/1991
*
*        Correction in GINIT to print the level of the correction
*        cradle applied. Thanks to F.Carminati.
*        Introduced in the 314 correction cradle.
*
*        Correction Cradle 3.14/06 stamped and released.
*
*===> 06/FEB/1991
*
*        Introduction of the AIX370 flag in GEANX and GEANT.
*        Thanks to Roger Howard.
*
*===> 13/FEB/1991
*
*        Protection in GTRACK, GFTRAC and GLTRAC, do not update
*        pointers to cross section banks in the vacuum.
*        Thanks to C.Fuglesang, S.Banerjee, M.Maire.
*        Introduced in the 314 correction cradle.
*
*???>    Backward incompatibility
*
*        GFDETH returns NAMESH as a character*4 array and
*        GFDETD returns NAMESD as a character*4 array.
*        Thanks to M.Maire.
*
*
*===> 14/FEB/1991
*
*        Mods in GPMATE, GPPART, GPTMED, GSDK, GSMATE, GSMIXT, GSPART,
*        GSTMED, GSROTM, GPROTM
*        to warn against replacement of existing objects. Thanks to
*        Steve O'Neale.
*        Introduced in the 314 correction cradle.
*
*        Force load of user routines in GINIT.
*        Introduced in the 314 correction cradle.
*
*===> 15/FEB/1991
*
*        GSDVN to notify correctly when mother volume does not exists.
*        Thanks to Victor Perevoztchikov.
*        Introduced in the 314 correction cradle.
*
*===> 20/FEB/1991
*
*        Correction in GHEINI for the exponent range to be compatible
*        with IEEE machines. Original limits were for IBM/370.
*        Routine LIMDAT eliminated. Thanks to Hans-Jochen Trost.
*        Introduced in the 314 correction cradle.
*
*???>    Backward incompatibility
*
*        Parameter NAMATE returned from GFMATE now a CHARACTER*20
*        variable. Thanks to Michel Maire.
*
*        Monitoring introduced, flag MONITOR. Thanks to F.Carminati.
*        Mods in GXINT, GINIT, GLAST. Routine GEAMON introduced.
*        Introduced in the 314 correction cradle.
*
*===> 22/FEB/1991
*
*        GWORK in GINIT was (DUMMY) called without arguments.
*        GUDTIM was (dummy) called as a routine and it is a
*        function. Thanks to F.Carminati.
*        Introduced in the 314 correction cradle.
*
*        GUVIEW to specify 3rd argument as a character. Thanks to
*        Federico Carminati.
*        Introduced in the 314 correction cradle.
*
*        Call NUCRIN with the right number of arguments (the last
*        was not used anyway). Thanks to Federico Carminati.
*        Introduced in the 314 correction cradle.
*
*===> 04/MAR/1991
*
*        Correction in GMUSIG to avoid division by zero. Thanks to
*        M.Verzocchi.
*        Introduced in the 314 correction cradle.
*
*
*===> 20/MAR/1991
*
*        Corrections in GPRELM, muon e+e- soft radiation. Correction in
*        GDRELM for the ionization energy loss for muons. Thanks to
*        A.Nathaniel. Introduced in the 314 correction cradle.
*
*===> 21/MAR/1991
*
*        Correction in GPHYSI to initialise the JMULOF bank even in
*        the case of vacuum. Electron tracking in vacuum was not taking
*        into account the TMAXFD parameter. Correction in GRANGI to set
*        the range to BIG in case of 0 energy loss tabulated in JLOSS.
*        Correction in GPHYSI to switch off all the mechanisms in the
*        vacuum but decay. The corresponding code in GTRACK has been
*        removed. The previous corrections for IUPD in GLTRAC, GFTRAC
*        and GTRACK have been removed as well. Thanks to D.Ward, R.Brun,
*        F.Carminati
*        Introduced in the 314 correction cradle.
*
*        Corrections in GRANGI and in GTHADR to cure small steps in
*        tracking. Thanks to M.Maire.
*        Introduced in the 314 correction cradle.
*
*===> 25/MAR/1991
*
*???>    Backward incompatibility
*
*        GFPART returns NAPART as a CHARACTER*20 array. Thanks to R.Rui
*        Introduced in the 314 correction cradle.
*
*===> 26/MAR/1991
*
*        GFTMAT will return the correct values for the vacuum, except
*        for hadrons. Thanks to P.Gumplinger.
*        Introduced in the 314 correction cradle.
*
*        Correction in GPCXYZ when the number of mechanisms is greater
*        than 6. Thanks to Y.Iga.
*        Introduced in the 314 correction cradle.
*
*
*===> 27/MAR/1991
*
*        GDXYZ corrected to use HIGZ generic line types. Thanks to
*        M.Maire.
*        Introduced in the 314 correction cradle.
*
*        Correction in the CDF for RZ/IN and RZ/OUT. Thanks to
*        F.Carminati.
*        Introduced in the 314 correction cradle.
*
*===> 04/APR/1991
*
*        For reasons of speed GKS-type lines are used now in
*        GDCXYZ, GDXYZ. Thanks to F.Carminati.
*        Introduced in the 314 correction cradle.
*
*===> 18/APR/1991
*
*        Correction of the logic for TMAXFD. Now is:
*
*            AUTO 1: 0<TMAXFD<20  --> accepted
*                      TMAXFD>20  --> set to 20
*                      TMAXFD<=0  --> set to 20
*
*            AUTO 0:   TMAXFD>0   --> accepted
*                      TMAXFD<=0  --> set to 20
*
*        Thanks to Gerry Lynch.
*        Introduced in the 314 correction cradle.
*
*        Correction in GMULOF. STMIN=BIG for the vacuum. Thanks
*        to F.Carminati.
*        Introduced in the 314 correction cradle.
*
*        Correction in GRFILE, GRIN called with IDVERS=0 and not
*        999. Thanks to F.Carminati.
*        Introduced in the 314 correction cradle.
*
*===> 22/APR/1991
*
*        Corrections in GPRELA, GMULOF, GPHYSI and GTNEXT. Now
*        STMIN is set to 0. for vacuum independly of the AUTO
*        flag. Thanks to M.Maire.
*        Introduced in the 314 correction cradle.
*
*        Format correction in GSDVN. Thanks to Federico Carminati.
*        Introduced in the 314 correction cradle.
*
*===> 23/APR/1991
*
*        Correction in GINIT to initialize LIN via IQTTIN if
*        different from 0. Thanks to F.Carminati
*        Introduced in the 314 correction cradle.
*
*===> 24/APR/1991
*
*        New routines GPLMAT, GPRMAT, GPGKIN from Michel Maire.
*
*===> 25/APR/1991
*
*        geant.metafile is not opened any more by default.
*        The METAFILE command now accepts the metafile name
*        for packages like ATC-GKS which do not use FORTRAN.
*        Thanks to W.Koellner.
*
*===> 01/MAY/1991
*
*        Problem corrected in GHEISH for neutron cascade. A neutron
*        undergoing an hadronic reaction could generate two recoil
*        protons. Thanks to Henk den Bok.
*        Introduced in the 314 correction cradle.
*
*        Correction in GNEXT/GTNEXT. STMIN not used anymore for
*        MANY volumes. Thanks to M.Maire.
*        Introduced in the 314 correction cradle.
*
*===> 02/MAY/1991
*
*        Call to NVETIM routine removed from GHEISHA. Thanks to
*        F.Carminati.
*
*===> 07/MAY/1991
*
*        RNDM interactive command added to set the random number
*        generator seeds. Thanks to F.Carminati.
*
*===> 08/MAY/1991
*
*        New routine GDTRAK introduced to draw a track and delete
*        it from the JXYZ buffer optionally. Thanks to R.Brun,
*        F.Carminati.
*
*        Important correction in GTGAMA, GTNEUT to avoid problems
*        due to machine precision. When a push is made to cross a
*        volume boundary the condition that the change in coordinate
*        be not negligible is imposed. Thanks to F.Carminati, R.Brun.
*        Introduced in the 314 correction cradle.
*
*===> 09/MAY/1991
*
*        Correction in GMGAUS due to G.Lynch. The sigma of the multiple
*        scattering in the gaussian approssimation was too small.
*        Introduced in the 314 correction cradle.
*
*===> 14/MAY/1991
*
*        Corrections in GTELEC, GTHADR and GTMUON to introduce the
*        same boundary correction than in GTNEUT, GTGAMA. Thanks to
*        P.Gumplinger.
*        Introduced in the 314 correction cradle.
*
*        New menu in GXINT to handle FZ files. Thanks to F.Carminati
*
*===> 17/MAY/1991
*
*        Correction in GHFHDN to reset to 0. TOFD. Thanks to
*        R.Rui.
*        Introduced in the 314 correction cradle.
*
*===> 31/MAY/1991
*
*        Correction in GTRACK to allow PREC to decrease and avoid
*        problems when changing particle and position but not medium.
*        Thanks to R.Spiwoks.
*        Introduced in the 314 correction cradle.
*
*===>  4/JUN/1991
*
*        New version of the hidden line removal, thanks to S.Giani.
*        New menu CVOL introduced to cut volumes and new SHIFT
*        command to shift volumes for drawing.
*
*        Correction in GHEISH. The ENP parameters are reset to 0.
*        at the beginning of every event. Thanks to Henk den Bok.
*        Introduced in the 314 correction cradle.
*
*===>  5/JUN/1991
*
*        Correction introduced in GPHYSI. JTM recalculated after
*        bank push. Thanks to K.Sparks.
*        Introduced in the 314 correction cradle.
*
*===> 11/JUN/1991
*
*        Correction introduced in GTELEC, GTMUON, GTHADR. When the
*        energy loss is below machine precision, it is recalculated
*        via the De/Dx table. Thanks to H.Fesefeld and Ralf Spiwoks.
*        Introduced in the 314 correction cradle.
*
*        Booking of the bank IMAT-4 delayed till GPHYSI. Will save some
*        words in case of materials which are not inserted in a tracking
*        medium. Thanks to F.Carminati.
*
*???>    Backward incompatibility
*
*        The argument DMAXMS in the calling sequence of GSTMED, unused
*        in 314, will be called STEMAX and will assume the meaning of
*        maximum step allowed for a particle in the given material.
*        This will only affect people running with AUTO 0. In case of
*        automatic computation of the tracking media parameters, this
*        number will be set to BIG (=1.E10).
*        Thanks to F.Carminati, M.Maire.
*
*===> 12/JUN/1991
*
*        Corrections in GMUNU to allow the usage of a variable number of
*        energy bins. Corrections in PHASP and GMUSIG for very high
*        energies. Thanks to Hans-Jochen Trost.
*        Introduced in the 314 correction cradle.
*
*        Correction in GFLTHE to avoid division by 0. Thanks to
*        Roy Bossingham.
*        Introduced in the 314 correction cradle.
*
*===> 13/JUN/1991
*
*        Correction in GINPGO and GINPCO to check correctly the PHI
*        limits. Thanks to R.Bossingham.
*        Introduced in the 314 correction cradle.
*
*===> 19/JUN/1991
*
*        Correction in GMUNU to calculate correctly the angle of the
*        incoming muon. Thanks to H-J.Trost.
*        Introduced in the 314 correction cradle.
*
*===> 20/JUN/1991
*
*        Corrections in GLANDZ for high energy to avoid numerical
*        problems. Thanks to H-J.Trost.
*        Introduced in the 314 correction cradle.
*
*===> 26/JUN/1991
*
*        All the routines and the commons of the HADRIN/NUCRIN
*        package have been renamed. All routines begin now with
*        GHF and all commons with GCF. This to avoid interactions
*        with the interface with FLUKA. Thanks to F.Carminati
*
*===> 28/JUN/1991
*
*        New algorithm for pushing a view bank. Now push of the
*        max between MORGS and the 25% of the size of the view
*        bank. Thanks to S.Giani.
*
*===> 17/JUL/1991
*
*        Common HIATT of HIGZ removed from GXCONT and workstation type
*        retrieved in GXDZ from Workstation ID. Thanks to O.Couet.
*
*        Modification in GMUSIG to protect against possible division
*        by zero. Thanks to M.Sarris.
*
*        Correction in GDSHOW to recalculate COSPSI and SINPSI. Thanks
*        to M.Verzocchi.
*        Introduced in the 314 correction cradle.
*
*===> 18/JUL/1991
*
*        Correction in GINVOL. When tracking in magnetic
*        field they could return the wrong volume. Thanks to D.Greiner.
*        Introduced in the 314 correction cradle.
*
*===> 24/JUL/1991
*
*        Corrections in GRIN to allow tracking after reading a data
*        structure. Thanks to R.Brun.
*        Introduced in the 314 correction cradle.
*
*        Modifications in GXINT to allow running with the MOTIF
*        user interface. Thanks to R.Brun.
*
*===> 31/JUL/1991
*
*        INT=0 suppressed in GHEISH after nuclear fission.
*        Thanks to Kati Lassila.
*
*===> 01/AUG/1991
*
*        Protection introduced in GMUSIG. Thanks to Jochen Trost.
*        Introduced in the 314 correction cradle.
*
*===> 02/AUG/1991
*
*        Correction in GHSTOP to fix the calculation of the time of
*        flight for stopping particles. Thanks to L.Roberts.
*        Introduced in the 314 correction cradle.
*
*        Correction in GNPGON not to calculate safety for the inner
*        radius when this is 0. Thanks to Andrei Nomerotsky.
*        Introduced in the 314 correction cradle.
*
*        Correction in GNOTRP to return the correct SNXT. Thanks to
*        V.Innocente.
*        Introduced in the 314 correction cradle.
*
*        Correction in GHSTOP not to discard hadrons at rest, they
*        may decay. Thanks to H.Fesefeld.
*        Introduced in the 314 correction cradle.
*
*        Modifications in GHSTOP and GHEISH to handle user defined
*        particles. Thanks to P.Gumplinger.
*        Introduced in the 314 correction cradle.
*
*===> 12/AUG/1991
*
*        Call to GUINTI added in GINTRI to define user commands. Thanks
*        to V.Vercesi.
*        Introduced in the 314 correction cradle.
*
*===> 21/AUG/1991
*
*        Modification in GTMED to print a warning when FIELDM .EQ. 0
*        and IFIELD .NE. 0. Thanks to Federico Carminati
*
*        Modification in GTHADR to set CFLD = BIG in case FIELDM=0.
*        Thanks to V.Vercesi.
*        Introduced in the 314 correction cradle.
*
*===> 27/AUG/1991
*
*        Call to C dummy routine to initialise X11 introduced in
*        GXINT for IBM/VM. Thanks to M.Marquina.
*
*===> 19/SEP/1991
*
*        Rayleigh effect now the default. IRAYL is set to 1 by default
*        in GINIT. Thanks to M.Maire
*
*        Changes in the multiple scattering routines. GMOLI1 and GMOLI2
*        suppressed and GMOLIO used instead. Corresponding changes in
*        GMULTS and GMULOF. The code of GMOLS has been put in line inside
*        GMOLIE and GMOLS is obsolete. GPOISS and GMCOUL modified for
*        performance reasons.
*        Gaussian scattering is now generated according to the Rossi
*        gaussian formula and there is no logarithmic term in the
*        sigma of the gaussian. This gives a distribution where the
*        tails are underestimated, but which is consistent over many
*        steps.
*        Moliere and single Coulomb scattering are chosen according to
*        the value of Omega in the Moliere formula.
*        The new meaning of IMULS is the following:
*
*              IMULS = 0       No multiple scattering
*              IMULS = 1,2     Moliere or single Coulomb scattering
*              IMULS = 3       Gaussian scattering with Rossi formula
*
*        Thanks to G.Lynch.
*
*===> 14/OCT/1991
*
*         New algorithm for calculation of energy loss. The stopping
*         range is now calculated with a parabolical interpolation
*         instead than with a linear one. This gives a dE/dx curve
*         which is a piecewise linear function and not a step function.
*         Thanks to F.Carminati.
*
*         Modification of GNOPG1 taking care of the case of a particle
*         which is very near to the surface and it may appear inside due
*         to machine precision. This could cause the volume to be skipped.
*         Thanks to R.Nierhaus.
*
*         Routine GNPGON rewritten for the calculation of SNXT. The
*         previous routine was returning wrong results. Thanks to
*         R.Nierhaus.
*
*===> 28/OCT/1991
*
*         Modifications in the routines GFLPHI and GFCOOR. The ordering
*         for TUBS in phi was wrong. Volumes could become invisible.
*         Thanks to F.Carminati.
*
*         New routine GFVERT introduced. Retrieves the parameters of a
*         vertex. Thanks to F.Carminati.
*
*===> 29/OCT/1991
*
*         Modification in NUCREC to zero the whole of the PV array
*         to prevent the use of uninitiated variables. Thanks to
*         F.Ranjard. Introduced in the 3.14 correction cradel.
*
*===>  1/NOV/1991
*
*         Useless code commented out in GTRAIN. Thanks to F.Carminati.
*
*         GNCONE gone to double precision. Thanks to J.Toth.
*
*===>  5/NOV/1991
*
*         Variable USERW undefined in the RESULT common now set to
*         UPWGHT from GCTRAK common. Thanks to F.Ranjard.
*
*         Type declarations for GCSTAK completed. Thanks to M.Battle.
*
*===>  5/DEC/1991
*
*         New calculation of the range table. Simpson integration rule
*         used. Modifications in GRANGI, GCOEFF.
*
*===> 10/DEC/1991
*
*         Protection introduced against the reading of a pre-315 data
*         structure. The value of STEMAX is set to BIG in this case.
*         Modification in GPHYSI.
*
*         Better handling of version numbers in I/O operations.
*         Modifications in GPHYSI and GRIN.
*
*===> 08/JAN/1992
*
*         Correction in GLANDZ to avoid gaussian distribution for
*         very thin layers. The version of GEANT 3.13 has been
*         used for this. Thanks to F.Carminati and M.Maire.
*
*         Corrections in GTNEXT, GINVOL and GTMEDI to protect against
*         wrong values of INGOTO when using MANY volumes. Thanks to
*         R.Brun.
*
*===> 15/JAN/1992
*
*???>    Backward incompatibility
*
*         The random numbers seeds are stored at the end of every event
*         in the JRUNG bank at locations 19 and 20. If the JRUNG data
*         structure is read in and the data card RNDM or the interactive
*         command RNDM has not been issued (NRNDM(1), NRNDM(2) <> 0),
*         and if the words 19/20 are not 0, then the random number
*         generator is restarted with these seeds. Thanks to F.Carminati
*
*         The RNDM command now reads the values of the seeds into
*         NRNDM(1) and NRNDM(2) in common GCFLAG. The values 0 0
*         can be used for the random seeds. These values will not
*         alter the current status of the random number generator,
*         but zeroing the variables  NRNDM(1) and NRNDM(2) will
*         allow them to be reinitialised with the values stored
*         in a data structure read from disk. Thanks to F.Carminati
*
*         Routine GREND now needs an integer as input. This is to be
*         consistent with GRFILE.
*
*===> 27/JAN/1992
*
*         The following changes made to the names of FLUKA routines
*         to avoid clashes with ISAJET. Thanks to L.Roberts.
*
*        Type          Original name            New name
*        Routine       DECAY                    FKDECA
*        Routine       FLAVOR                   FKFLAV
*        Routine       SIGINT                   FKSIGI
*
*===> 31/JAN/1992
*
*        Corrections in GMEDIA in case of many volumes to avoid
*        program crash. Thanks to R.Jones.
*
*        Change of logics in GRUN. Now if NEVENT is <= 0, no event
*        is processed. Thanks to B.Lockman.
*
*        Common GCFLAX put in the GCFLAG sequence with the BATCH and
*        NOLOG variable from GXINT. Thanks to B.Cole.
*
*        Problem corrected in GDECAY. The mass of the particle was
*        altered. If the next particle was the same, the mass was
*        not reset to its correct value. Thanks to S.Tonse.
*
*        TIMINT is now really the time left after initiatlization
*        as is specified in the documentation and not the time
*        USED for initialization as it was till now.
*        Thanks to V.Ivanov.
*
*        Corrections in GNPGON. Improvement of code safety under
*        optimization in GNOGO1, GNPGON, GNPCON. Thanks to Y.Iga.
*
*===>  4/FEB/1992
*
*        Corrections in GMULOF and GTHADR. SFIELD takes precedence
*        on STMIN in case IFIELD=1 to make sure that the Runge-Kutta
*        approssimation still works. Thanks to R.Hawkings.
*
*===> 10/FEB/1992
*
*         Correction in GDRAY to improve the precision in the calculation
*         of the angle. Thanks to F.Carminati & P.Lubrano.
*
*         Change in GFKINE. The variable TOFG is not updated any more.
*         Thanks to F.Carminati
*
*         New GMEDIA, GTMEDI, GINVOL to take care of the problems with
*         MANY volumes. Thanks to R.Jones.
*
*===> 14/FEB/1992
*
*         Bug corrected in GNPGON when the particle was exactly on the
*         wall of the last Z section. Thanks to V.Palichik.
*
*===> 17/FEB/1992
*
*         Updated routines GLUND, GLUNDI and new sequences LUDAT1, LUDAT3,
*         LUJETS. The data cards MSTE, KTYP, PMAS, PWID, IDB have been
*         removed because either obsolete or not aplicable. The new code
*         runs with JETSET 7.3 upward. Thanks to F.Carminati, T.Sjostrand.
*
*         Update of GLUDKY to work with 7.3. Thanks to F.Carminati.
*
*===> 23/FEB/1992
*
*         New subroutine GFIN to handle sequential input. Routine GGET
*         has been maintained for backward compatibility.
*         Thanks to F.Carminati.
*
*===> 01/MAR/1992
*
*         New Runge-Kutta integration routine for the tracking in
*         magnetic field. If the result of the stepping is not accurate,
*         the step is divided in 2 parts and the integration repeated
*         and so on. Thanks to V.Perevotchikov.
*
*===> 05/MAR/1992
*
*         Correction in GLTRAC. When the particle fetched has an entry
*         in JKINE the correct vertex number is calculated. Thanks to
*         Y.Foka.
*
*===> 06/MAR/1992
*
*         Correction in GTELEC. The calculated range may be slightly
*         larger than the maximum allowed range due to precision
*         problems and this was leading to very small negative steps.
*         Thanks to R.Brun.
*
*===> 08/MAR/1992
*
*         New GRKUTA, GHELIX, GHELX3 from V.Perevotchikov.
*
*===> 16/MAR/1992
*
*          ENERGY renamed to FKENER in FLUKA. Thanks to F.Carminati
*
*===> 17/MAR/1992
*
*          VERTEX->FKVERT, ZEROIN->FKZERO, ERROR->FKERRO in FLUKA.
*          Thanks to F.Carminati
*
*          Corrections in PBANH. Thanks to M.Sasaki.
*
*===> 19/MAR/1992
*
*          Corrections in GFIN, GFOUT and GRIN, version 0 is now allowed
*          for a data structure in I/O. Thanks to B.Cole.
*
*          Modification in GBREME to improve precision for small angles.
*          Thanks to F.Carminati.
*
*          Inlining of rotation routines in GFTRAC, GINVOL, GTMEDI,
*          GTNEXT, GMEPOS, GMEDIA. Thanks to D.Kryn, F.Carminati.
*
*          New routines GDLENS, GDPLST and GDPRTR in the drawing package.
*          New version of GDTREE. Thanks to S.Giani.
*
*          Streamlining of GDTOM, GINROT, GITRAN, GMTOD, GRMTD, GRMUL,
*          GROT, GTRMUL and GTRNSF. Thanks to F.Carminati.
*
*===> 23/MAR/1992
*
*???>    Backward incompatibility
*           Tracking medium name in GFTMED changed in CHARACTER variable.
*           Thanks to V.Perevotchikov.
*
*           IMPULS renamed to FKIMPU
*           DRES   renamed to FKDRES
*           ERUP   renamed to FKERUP in FLUKA. Thanks to F.Carminati.
*
*===> 24/MAR/1992
*
*       COSI entry point renamed to FKCOSI
*       POLI             renamed to FKPOLI in FLUKA. Thanks to F.Carminati
*
*       Changes in GCOMP to increase the precision of the rotation
*       of the scattered photons and electrons in the reference
*       frame of the incoming particle. Thanks to F.Carminati
*
*       New version of the routines GNOPG1 and GNPGO1. Speed up of
*       a factor two or more achieved. Thanks to F.Carminati,
*       M.Roethlisberger.
*
*===> 29/MAR/1992
*
*       Improvement of the routines GMEDIA, GTMEDI and GINVOL. A better
*       use is made of the variable INGOTO. Thanks to R.Jones, F.Carminati.
*
*===> 01/APR/1992
*
*       Modification in GTRACK. If a particle tries for more than 5 times
*       consecutively to exit a volume, the precision used for tracking is
*       multiplied by 5 and so on every fifth attempt. Thanks to
*       F.Carminati.
*
*       Modification in FLUFIN to normalise in double precision the
*       direction cosines given to FLUKA. Thanks to A.Ferrari
*
*       Modification in GLANDZ to avoid peaks in energy loss for very
*       light materials. Thanks to F.Carminati
*
*       New routine GETVER to crack the title sequence and to return
*       the correct version number. Thanks to F.Carminati and M.Maire.
*
+DECK,V_316
*CMZ :  3.21/02 29/03/94  15.41.18  by  S.Giani
*-- Author :
*
*     Correction cradle for version 3.15 of the GEANT Programme
*     and history of the evolution of 3.16.
*
*               Important !!!
*               =============
*
*     Only corrections flagged by "Introduced in the 3.15 correction
*     cradle" are applied to 3.15. All the other comments refer
*     to modifications which will appear in the 3.16 version of
*     the program.
*
********************************************************************
*
*===> 06/12/93
*
*           Release of the 3.11 correction cradle.
*
*===> 02/12/93
*
*           Correction in GBRELE and GRANGI. Thanks to F.Carminati.
*           Introduced in the 3.15 correction cradle.
*
*===> 29/11/93
*
*           Release of the 3.10/00 correction cradle.
*
*===> 21/10/93
*
*          Correction in FKDECA and HADEVV to permit the correct
*          treatment of charmed particles decay. Thanks to
*          A.Ferrari. Introduced in the 3.15 correction cradle.
*
*          Correction in FKDRES to avoid a loop. Thanks to
*          B.Slater and A.Ferrari. Introduced in the 3.15 correction
*          cradle.
*
*===> 20/10/93
*
*          Correction in GDRAW to update current pointer to IN
*          bank. Correction in GGPPAR to compute the internal
*          parameters of a TRAP with negative parameters. Thanks
*          to S.Banerjee. Introduced in the 3.15 correction cradle.
*
*===> 19/10/93
*
*           Correction in GTNEUT, GTHADR, to allow hadronic decay
*           in the vacuum. Thanks to R.Jones. Introduced in the
*           3.15 correction cradle.
*
*===> 01/10/93
*
*           Correction in GNSLWD to avoid numerical problem. Thanks
*           to A.Parri. Introduced in the 3.15 correction cradle.
*
*===> 15/09/93
*
*           Release of the 3.09/00 correction cradle.
*
*===> 13/09/93
*
*           Correction in GNOCTU, thanks to M.Nessi. Introduced in
*           the 3.15 correction cradle.
*
*===> 03/09/93
*
*           Correction in EVENTV to protect square root of a negative
*           number. Thanks to B.Slater and A.Ferrari. Introduced in
*           the 3.15 correction cradle.
*
*===> 11/08/93
*
*           New tratment for thin layer, mainly gas, of dE/dx
*           introduced. Thanks to V.Grishin, S.Kotelnikov,
*           K.Lassila-Perini and P.Nevski.
*
*           All bit manipulation functions replaced by Military
*           Standard functions. Thanks to F.Carminati.
*
*===> 19/07/93
*
*           Correction in FLUFIN in order to avoid 0 mechanism
*           number when IHADR=2. Thanks to P.Bloch. Introduced
*           in the 3.15 correction cradle.
*
*           Correction in GSROTM, NROTM updated when the bank is
*           pushed. Thanks to M.Maire. Introduced in the 3.15
*           correction cradle.
*
*           Correction in ERTRGO. Thanks to E.Nagy. Introduced
*           in the 3.15 correction cradle.
*
*===> 07/06/93
*
*           Release of version 3.08 of the correction cradle.
*
*           New version of the FLUKA interface introduced. New
*           model for energy straggling introduced (Ermilova&
*           Checkin) and synchrotron radiation. Thanks to K.
*           Lassila-Perini, A.Ferrari&P.Sala et al. and I.
*           Gavrilenko. Please see the documentation for more
*           information.
*
*           New routine GFANG introduced. It finds the angles
*           Theta and Phi which are used to rotate a vector in
*           the master system of the other. Thanks to F.Carminati
*
*           New rotine GVROT introduced. It will rotate in full
*           double precision a vector in the reference system of
*           another one. Thanks to F.Carminati
*
*           Corrections in GRIN/GFIN to calculate correctly the
*           number of rotation matrixes. Thanks to M.Maire.
*           Introduced in the 3.15 correction cradle.
*
*           Correction in FLUFIN to pass antiprotons to FLUKA when
*           they are 'stopping'. Thanks to A.Ferrari. Introduced in
*           the 3.15 correction cradle.
*
*
*===> 27/05/93
*
*           Corrections in FLUFIN to pass stopping antiprotons,
*           antineutrons and pions to FLUKA for annihilation. The
*           other hadrons are either decayed or (neutral particles)
*           passed to GHEISHA/GHSTOP.
*
*===> 04/05/93
*
*           Correction in FDNOPT to properly initialise an
*           array. Thanks to K.Lassila-Perini. Introduced in
*           the 3.15 correction cradle.
*
*===> 21/04/93
*
*           New routine from Laszlo Urban for the tracking of
*           ions, GTHION. Ions now have to be given particle
*           type 8. Thanks to L.Urban.
*
*===> 18/04/93
*
*           Addition in GPPERP, the sphere has been added. Thanks
*           to R.Jones.
*
*           Old Hadrin/Nucrin interface deleted. HADR 3 flag has
*           no meaning any more. Warning message introduced in
*           GPHYSI, when IHADR=3 then reset it to 1 and use GHEISHA.
*           Thanks to F.Carminati.
*
*           Tatina code eliminated from GEANT. Thanks to F.Carminati.
*
*           Small changes in GSCHIT to avoid integer/floating
*           conversions and to speed-up the code. Thanks to
*           F.Carminati.
*
*===> 07/04/93
*
*           Correction in the GPOISS routine to avoid overflows.
*           Thanks to S.Qian. Introduced in the 3.15 correction
*           cradle.
*
*===> 06/04/93
*
*           Correction in GNSPHR to avoid floating point overflow.
*           Thanks to S.Ljungfelt. Introduced in the 3.15 correction
*           cradle.
*
*===> 22/03/93
*
*           Correction in GEAMON to extend the field for CPU
*           time. Thanks to R.Brun. Introduced in the 3.15
*           correction cradle.
*
*===> 14/03/93
*
*           Release of version 3.07 of the correction cradle.
*
*           Corrections in GZINIT, GPHYSI and GDSHOW. The
*           working space is now allocated via calls to
*           GWORK. GWORK has been modified and it only
*           increases the working space, it never reduces it.
*           Thanks to M.Corden. Introduced in the 3.15
*           correction cradle.
*
*===> 10/03/93
*
*           Correction in GFIN/GFOUT to avoid spurious error
*           message. Thanks to M.Maire.
*
*===> 03/03/93
*
*           Correction in GLTRAC to improve the precision of
*           the calculation of the kinetic energy. Thanks to
*           C.Zeitnitz. Introduced in the 3.15 correction
*           cradle.
*
*           Correction in GTRACK to avoid output overflow in
*           format statement. Thanks to M.Corden. Introduced
*           in the 3.15 correction cradle.
*
*           Correction in GDXYZ to obtain the correct line color
*           for a track. Thanks to M.Corden. Introduced in the
*           3.15 correction cradle.
*
*===> 02/03/93
*
*           New treatment of the photoelectric effect introduced.
*           Thanks to J.Chwastowski. Please see documentation for
*           more information.
*
*===> 01/03/93
*
*           Changes in GKGEOM to avoid warnings with the new
*           version of KUIP. Thanks to A.Nathaniel. Introduced
*           in the 3.15 correction cradle.
*
*           Changes in GSDVN2 to support division of spheres
*           in PHI with initial offset. Thanks to F.Carminati.
*
*           Changes in GMEDIV and GNSPHR to correct precision
*           problems. Thanks to F.Carminati.
*
*           Introduction of the Cerenkov effect. Thanks to
*           R.Jones. Please see documentation for more
*           details.
*
*===> 12/02/93
*
*           Changes in GSDVN to support division in PHI (axis
*           N. 3) of the sphere. Thanks to F.Carminati.
*
*           Changes in GDRAWS to partially support the drawing
*           of parts of sphere. Thanks to F.Carminati.
*
*===> 09/02/93
*
*           Release of version 3.06 of the correction cradle.
*
*===> 28/01/93
*
*           Correction in GXINT for compatibility with the KUIP
*           installed with version 93a of the CERN Program Library.
*           Thanks to R.Jones. Introduced in the 3.15 correction
*           cradle.
*
*===> 27/01/93
*
*           Correction in GMUNU. Only GHEISHA used to handle the
*           interaction irrespective of the value of IHADR. Thanks
*           to K.Lassila-Perini and G.Battistoni. Introduced in the
*           3.15 correction cradle.
*
*           Corrections in GGPPAR to handle a tube with negative
*           parameters positioned into a tubes in the general case.
*           Thanks to F.Carminati.
*
*===> 19/01/93
*
*           Correction in FLUFIN to make sure that just neutrons
*           are passed to GHEISHA. Thanks to K.Lassila. Introduced
*           in the 3.15 correction cradle.
*
*===> 21/12/92
*
*           Option Q(uiet) introduced in GRIN/GROUT. Thanks to
*           M.Maire.
*
*           New version of GRKUTA protected against 0 fields and
*           improved for precision. Introduced in the 3.15 correction
*           cradle. Thanks to W.Manner.
*
*===> 15/12/92
*
*           IQ(JRUNG+29) set to the event sequence number of the
*           last generated event in GTRIGC. Thanks to M.Maire.
*
*===> 11/12/92
*
*           Call to LUPART replaced with LU1ENT in GLUDKY. LUPART
*           was an obsolete routine deleted from JETSET 7.3
*           library. Thanks to R.Gomes.
*
*===> 23/11/92
*
*           Release of the version 3.05/00 of the correction
*           cradle.
*
*           Corrections in GRANGI to account for the use of the
*           ERAN card. Thanks to P.Gumplinger. Introduced in the
*           3.15 correction cradle.
*
*===> 18/11/92
*
*           Correction in GDRAWS for very thin CTUBes. Thanks to
*           M.Guidal. Introduced in the 3.15 correction cradle.
*
*           New version of GRKUTA introduced. It will limit the
*           number of iterations and cut steps to prevent looping.
*           Thanks to V.Perevotchikov. Introduced in the 3.15
*           correction cradle.
*
*===> 11/11/92
*
*           Correction in GGDSPE to allow repeated division of
*           tubes along R. Thanks to M.Maire. Introduced in the
*           3.15 correction cradle.
*
*===> 11/11/92
*
*           Correction in GNPCON when the particle is slightly
*           outside of the last plane in Z. It could happen for
*           precision problems. Thank to C.Georgiopoulos.
*           Introduced in the 3.15 correction cradle.
*
*           Quiet option introduced in GFIN and GFOUT to suppress
*           printing. Thanks to A.Eisner.
*
*           Correction in the header of GFIN, GFOUT. Thanks to
*           A.Eisner.
*
*           Correction to GSNEXT. It now checks the values of the
*           input list. Repeated values or values which are not
*           within the allowed limits are ignored and a warning
*           message is printed. Thanks to F.Luehring.
*
*===> 04/11/92
*
*           Modification in GSVOLU. A warning is printed if the same
*           volume name is repeated twice. Thanks to V.Perevoztchikov.
*
*===> 23/10/92
*
*           Print statement in GSKING replaced by a WRITE(CHMAIL
*           Thanks to F.Carminati.
*
*===> 19/10/92
*
*           Correction in GDRAY to increase the precision of
*           the angle calculation. Thanks to F.Malek.
*           Introduced in the 3.15 correction cradle.
*
*===> 19/10/92
*
*           Release of version 3.04 of the correction cradle.
*
*           Corrections in FEREVV and HADEVV. Thanks to A.Ferrari.
*           Introduced in the 3.15 correction cradle.
*
*===> 16/10/92
*
*           Release of version 3.03 of the correction cradle.
*
*===> 13/10/92
*
*           Correction in GFIN and GFOUT to handle correctly
*           ZEBRA error conditions. Thanks to H.Uijterwaal.
*           Introduced in the 3.15 correction cradle.
*
*           Correction in GDECAY to improve precision of rotation
*           of secondaries. Thanks to F.Carminati. Introduced in
*           the 3.15 correction cradle.
*
*           Correction in FEREVV to avoid square root of negative
*           number. Thanks to A.Ferrari. Introduced in the 3.15
*           correction cradle.
*
*           Correction in GDRAW to avoid error when traversing the
*           tree. Thanks to F.Carminati. Included in the 3.15
*           correction cradle.
*
*===> 09/10/92
*
*           Correction in GXPICT, added definition of a character
*           variable. Thanks to F.Carminati. Introduced in the 3.15
*           correction cradle.
*
*===> 08/10/92
*
*           Corrections in ERPRDOC, EUFILV and ERTEST to change
*           Hollerith in characters for GEANE. Thanks to V.Innocente.
*           Introduced in the 3.15 correction cradle.
*
*===> 24/09/92
*
*           Correction in NUCREL to avoid square root of negative
*           numbers. Thanks to A.Ferrari. Introduced in the 3.15
*           correction cradle.
*
*===> 23/09/92
*
*           Correction in GMEDIA. INFR not set going up the tree to
*           avoid problem with user calls of GMEDIA during tracking.
*           Thanks to S.Banerjee. Introduced in the 3.15 correction
*           cradle.
*
*===> 21/09/92
*
*           Correction in GRANGI to avoid interpolation of DE/DX
*           beyond 10GeV. Thanks to V.Innocente. Introduced in the
*           3.15 correction cradle.
*
*===> 16/09/92
*
*           Correction in GBRELA. Auxiliary integration point for
*           muon dedx table was wrong. Thanks to V.Innocente.
*           Introduced in the 3.15 correction cradle.
*
*===> 15/09/92
*
*           Release of version 3.02 of the correction cradle.
*
*           Correction in GMEDIA, GTMEDI: JVIN not properly
*           initialised. Thanks to F.Carminati. Introduced in
*           the 3.15 correction cradle.
*
*           Release of version 3.01 of the correction cradle.
*
*           Correction to GSDVN for a mistype. Thanks to H.Plothow.
*           Introduced in the 3.15 correction cradle.
*
*           Small mod to GSNGTR for the CRAY. Function DSIGN changed
*           to SIGN. Thanks to F.Carminati. Introduced in the 3.15
*           correction cradle.
*
*           Release of version 3.00 of the correction cradle.
*
*           Correction in GDECAY. When IDCAY=2 the routine does not
*           produce secondaries. Thanks to R.Jones. Introduced in
*           the 3.15 correction cradle.
*
*           Corrections in GFIN, GFOUT. Thanks to B.Cole. Introduced
*           in the 3.15 correction cradle.
*
*===> 14/09/92
*
*           Correction in GMEDIV, GMEDIA, GINVOL, GTMEDI to
*           improve precision and prevent blocking of volumes.
*           Thanks to F.Carminati, R.Jones. Introduced in the
*           3.15 correction cradle.
*
*===> 03/09/92
*
*           GDLADY and GDMISS routines introduced. Thanks to
*           H.Plothow.
*
*           Correction in GXDRAW for the coordinates of the
*           drawing of the GIRL. Thanks to F.Carminati.
*           Introduced in the 3.15 correction cradle.
*
*           Correction in GPHSIG, typing mistake in a formula.
*           Thanks to M.Fanti. Introduced in the 3.15 correction
*           cradle.
*
*===> 02/09/92
*
*           Corrections in GSDVN, GGPPAR, GGDPAR, GMEDIV, GCENT,
*           GSDVN2, GSDVT, GSDVT2 to allow the division of a TRAP
*           along y. Thanks to F.Carminati. Introduced in the 3.15
*           correction cradle.
*
*           Corrections in GNPGO1 for precision problems. Thanks
*           to K.Lassila. Introduced in the 3.15 correction
*           cradle.
*
*           Corrections in GGDPAR, GSDVN for the z division of a
*           Polygone. Thanks to F.Carminati. Introduced in the
*           3.15 correction cradle.
*
*===> 01/09/92
*
*           Correction in GSDVT for the division of a parallepiped.
*           Thanks to Y.Fisiak. Introduced in the 3.15 correction
*           cradle.
*
*           Correction in GRKUTA. Helix is used if angle of
*           curvature is too large. In this case step is anyway
*           smaller than STMIN which is under user control.
*           Thanks to H.Plothow and V.Perevotchikov. Introduced
*           in the 3.15 correction cradle.
*
*===> 26/08/92
*
*           Correction in GKRZ and CDF for the command RZ/FILE.
*           Record length fixed at 1024 in GRFILE cannot be
*           Changed by the user. Thanks to H.Plothow. Introduced
*           in the 3.15 correction cradle.
*
*           Corrections in GTMEDI, GMEDIA and GINVOL for the case
*           of 'MANY' volumes. Uncleared blocking words found in
*           the tree. Thanks to H.Plothow. Introduced in the 3.15
*           correction cradle.
*
*===> 25/08/92
*
*           Correction in GNSPHR. The PHI limits were used
*           incorrectly in calculating the distance to the
*           sphere. This was slowing down calculation but still
*           giving correct results. Thanks to J.Stepanek.
*           Introduced in the 3.15 correction cradle.
*
*===> 21/08/92
*
*           Correction in GGORDQ. Incorrect counting of volumes
*           in case of phi ordering and phi division spanning
*           across 0 degrees. Thanks to L.Roberts and F.Carminati.
*           Introduced in the 3.15 correction cradle.
*
*===> 18/08/92
*
*           Version 2.00 of the correction cradle released
*
*
*           Correction in GDRELP and GDRELM. The shell corrections
*           where underestimated due to a wrong factor introduced
*           translating the original formula from ev to Gev. Thanks
*           to A.Ferrari and K.Lassila-Perini. Introduced in the
*           3.15 correction cradle.
*
*===> 17/08/92
*
*           Correction in GCENT in case of general trapezoid sliced
*           in z in a local development structure.
*           Thanks to S.Chekhtman. Introduced in the 3.15 correction
*           cradle.
*
*           Correction in GHEISH. Time of flight correctly initialised
*           for particles with number > 48. Thanks to A.Eisner.
*           Introduced in the 3.15 correction cradle.
*
*===> 14/08/92
*
*           Correction in GGPPAR for boxes with negative parameters
*           in traps. The current code supports correctly boxes with
*           one, two or three negative parameters positioned in a trap
*           not necessarily in the centre. The trap must not be twisted
*           and the ALP1 and ALP2 angles (PAR(7) and PAR(11)) must be
*           equal. This facility must be used with care because the
*           algorithm first maximises Z, then Y and then X. The result
*           may be not quite what is expected in all cases, and the
*           user is invited to check carefully the result. Thanks to
*           H.Plothow. Introduced in the 3.15 correction cradle.
*
*===> 12/08/92
*
*           Correction in GINVOL, GTMEDI and GMEDIA to handle correctly
*           the GSNEAR case when LIST(1)=1 and LIST(2)=0, that is when
*           all the volume are separated inside a mother. Optimisation
*           of the routine in case a large number of objects are
*           positioned at the same level and GUNEAR is used. Thanks to
*           R.Jones, M.Lefebvre and M.Pieri. Introduced in the 3.15
*           correction cradle.
*
*===> 07/08/92
*
*           Correction in GTNEXT. When the currents step brings
*           the particle on the surface of the next volume, signal
*           IGNEXT=1 to GTxxxx to 'push' into the next volume.
*           This is a genuine bug and some volumes may be lost
*           due to this. Thanks to M.Maire. Introduced in the 3.15
*           correction cradle.
*
*===> 02/08/92
*
*           Corrections to the precision in GNOPG1, GNCONE, GNOCON.
*           Thanks to R.Jones. Introduced in the 3.15 correction
*           cradle.
*
*===> 31/07/92
*
*           Correction in the printout of GTRACK when max number
*           of steps is reached. Event number and random numbers are
*           printed out as well. Thanks to M.Maire. Introduced in the
*           3.15 correction cradle.
*
*===> 29/07/92
*
*           Correction in PIMABS for HPUX only. If variable NT is
*           saved then the routine compiles correctly, otherwise
*           not. Thanks to F.Carminati. Introduced in the 3.15
*           correction cradle.
*
*           Correction in NIZL. All local variable are saved now.
*           Thanks to F.Carminati. Introduced in the 3.15 correction
*           cradle.
*
*===> 29/07/92
*
*           Correction in CDF and in GKDRAW. Minimum angle for the
*           drawing is 0 and not 1. Thanks to H.Plothow. Introduced
*           in the 3.15 correction cradle.
*
*           Minor update of GXFZ, a character length has been set
*           to 4 to keep KUIP happy. Thanks to F.Carminati. Introduced
*           in the 3.15 correction cradle.
*
*===> 28/07/92
*
*           Corrections in GXFZ. Now the array LUNITS is properly
*           updated when a file is closed.
*
*           Correction in GBRSGE, GBRSGM. Save statement introduced.
*           Thanks to L.Roberts. Introduced in the 3.15 correction
*           cradle.
*
*           Correction in GINVOL for many volumes. Thanks to S.Giani
*           and R.Jones. Introduced in the 3.15 correction cradle.
*
*           Correction in GMCOUL to prevent a division by 0. Thanks
*           to M.Maire. Introduced in the 3.15 correction cradle.
*
*===> 03/06/92
*
*           Correction in GSNGTR. Double precision variables removed
*           in case of 64 bits machines. Thanks to E.Boehm. Introduced
*           in the 3.15 correction cradle.
*
*           Correction in the SROTM command. The lower limit for
*           PHI3 is really 0. and not 1. Thanks to E.Boehm. Introduced
*           in the 3.15 correction cradle.
*
*===> 01/06/92
*
*           New version of GRKUTA. In fact this is the 3.14 version
*           with the multiple steps algorithm of 3.15 introduced.
*           If the bending angle in one step is too big, then the
*           integration is done in several steps rather than in
*           one. The IMPLICIT REAL*8 in the cradle is to avoid
*           problems with the CRAY in the absence of PATCHY delayed
*           control cards. Thanks to V.Perevotchikov. Introduced in
*           the 3.15 correction cradle.
*
*===> 25/05/92
*
*           Sequence GCONSP changed for 32 bits machines. All
*           constants are suffixed with D0 to avoid truncations.
*           Thanks to F.Carminati. Introduced in the 3.15 correction
*           cradle.
*
*===> 25/05/92
*
*           Version 1.00 of the correction cradle released
*
*===> 21/05/92
*
*          Correction in GHFNUC: TNNUC variable was undefined.
*          Thanks to B.Lund-Jensen.
*          Introduced in the 3.15 correction cradle.
*
*===> 08/05/92
*
*          Correction in TWOCLU to avoid infinite looping in some
*          pathological cases. Thanks to L.Roberts.
*          Introduced in the 3.15 correction cradle.
*
*===> 06/05/92
*
*          Correction in GNPGO1. Constants changed to double
*          precision to avoid problems on the IBM. Thanks to
*          D.Ward.
*          Introduced in the 3.15 correction cradle.
*
*===> 28/04/92
*
*          Correction in GXINT to obtain the correct time in
*          the monitoring routine when running interactively
*          on IBM/VM. Thanks to F.Carminati.
*          Introduced in the 3.15 correction cradle.
*
*===> 16/04/92
*
*          Correction in GMULTS. A particle going exactly along
*          the negative direction of the Z axis could be rotated
*          of 180 degrees after multiple scattering. Thanks to
*          P.Gabriel.
*          Introduced in the 3.15 correction cradle.
*
*===> 15/04/92
*
*          Correction in GXDRAW. The arguments of DHEAD were
*          fetched with the wrong order. Thanks to F.Videbaek.
*          Introduced in the 3.15 correction cradle.
*
*          Correction in GPHYSI. Variable NUMOLD is now reset to
*          zero. This may affect people running interactively and
*          using the command PHYSI. Thanks to F.Videbaek.
*          Introduced in the 3.15 correction cradle.
*
+PATCH,*GEANT
+DECK,BLANKDEK.
*CMZ :  3.21/02 29/03/94  15.41.18  by  S.Giani
*-- Author :
+USE,GCDES.
+USE,GBASE.
+USE,GCONS.
+USE,GHITS.
+USE,GIOPA.
+USE,GKINE.
+USE,GPHYS.
+USE,GTRAK.
+USE,GSTRAG.
+USE,GUSER.
+USE, SINGLE,  IF=CDC, CRAY.
+USE, F2C,     IF=MSDOS,WINNT,LINUX.
+USE, UNIX,    IF=SUN, SGI, DECS, CONVEX, IBMRT, AIX370.
+USE, UNIX,    IF=HPUX, APOLLO, IPSC, NEXT.
+USE, IBMALL,  IF=IBM, IBMMVS, AIX370.
+USE, DOUBLE,  IF=APOLLO, IBMALL, VAX.
+USE, DOUBLE,  IF=UNIX, IF=-SINGLE.
+USE, BSLASH,  IF=SUN, SGI, DECS, IBMRT, IPSC, F2C, QMALPH.
+USE, USRJMP,  IF=UNIX.
+USE, HIGZ,CG,MONITOR,FLUKA,IF=BLDLIB.
+DECK, INCSEQ, IF=INCLUDE
*CMZ :  3.21/02 29/03/94  15.41.18  by  S.Giani
*-- Author :
+KEEP,INCBEG,IF=IBM
      INCLUDE '
+KEEP,INCEND,IF=IBM
     +'
+PATCH,*GEAINC,IF=MINCL.
+DECK,blankdek.
*CMZ :  3.21/02 29/03/94  15.41.18  by  S.Giani
*-- Author :
+USE,GCDES
+USE,GTINCL.     Include files for GEANT car file
+USE,GGINCL.     Include files for GEANG car file CG package
+USE,GFINCL.     Include files for GEANF car file
+USE,GHINCL.     Include files for GEANH car file
+USE,ERINCL      Include files for GEANE car file
+PATCH,GCDES.
+DECK,BLANKDEK,IF=-INCLUDE.
*CMZ :  3.21/02 29/03/94  15.41.18  by  S.Giani
*-- Author :
+KEEP,GTLINK
      INTEGER       JDIGI ,JDRAW ,JHEAD ,JHITS ,JKINE ,JMATE ,JPART
     +      ,JROTM ,JRUNG ,JSET  ,JSTAK ,JGSTAT,JTMED ,JTRACK,JVERTX
     +      ,JVOLUM,JXYZ  ,JGPAR ,JGPAR2,JSKLT
C
+KEEP,GCLINK
+SEQ, GTLINK, IF=TYPE.
      COMMON/GCLINK/JDIGI ,JDRAW ,JHEAD ,JHITS ,JKINE ,JMATE ,JPART
     +      ,JROTM ,JRUNG ,JSET  ,JSTAK ,JGSTAT,JTMED ,JTRACK,JVERTX
     +      ,JVOLUM,JXYZ  ,JGPAR ,JGPAR2,JSKLT
C
+KEEP,GTBANK
      INTEGER IQ,LQ,NZEBRA,IXSTOR,IXDIV,IXCONS,LMAIN,LR1,JCG
      INTEGER KWBANK,KWWORK,IWS
      REAL GVERSN,ZVERSN,FENDQ,WS,Q
C
+KEEP,GCBANK
+SEQ,GTBANK,IF=TYPE.
      PARAMETER (KWBANK=69000,KWWORK=5200)
      COMMON/GCBANK/NZEBRA,GVERSN,ZVERSN,IXSTOR,IXDIV,IXCONS,FENDQ(16)
     +             ,LMAIN,LR1,WS(KWBANK)
      DIMENSION IQ(2),Q(2),LQ(8000),IWS(2)
      EQUIVALENCE (Q(1),IQ(1),LQ(9)),(LQ(1),LMAIN),(IWS(1),WS(1))
      EQUIVALENCE (JCG,JGSTAT)
+SEQ,GCLINK
+KEEP,GTCURS
      INTEGER INTFLA
      REAL    SIZD2,FACHV,HALF,SAVPLX,SAVPLY,YPLT,XPLT
*
+KEEP,GCCURS
+SEQ,GTCURS,IF=TYPE
      COMMON/GCCURS/INTFLA,SIZD2,FACHV,HALF,SAVPLX,SAVPLY,YPLT,XPLT
*
+KEEP,GTCUTS
      REAL          CUTGAM,CUTELE,CUTNEU,CUTHAD,CUTMUO,BCUTE,BCUTM
     +             ,DCUTE ,DCUTM ,PPCUTM,TOFMAX,GCUTS
C
+KEEP,GCCUTS
      COMMON/GCCUTS/CUTGAM,CUTELE,CUTNEU,CUTHAD,CUTMUO,BCUTE,BCUTM
     +             ,DCUTE ,DCUTM ,PPCUTM,TOFMAX,GCUTS(5)
C
+SEQ,GTCUTS,IF=TYPE.
+KEEP,GTURSB
      INTEGER NUMNDS,IADDI,NUMND2,NNPAR,IISELT
*
+KEEP,GCURSB
      COMMON/GCURSB/NUMNDS,IADDI,NUMND2,NNPAR,IISELT
      COMMON/GCURSC/MOMO
      CHARACTER*4 MOMO
*
+SEQ,GTURSB,IF=TYPE
+KEEP,GTFLAG.
      INTEGER       IDEBUG,IDEMIN,IDEMAX,ITEST,IDRUN,IDEVT,IEORUN
     +        ,IEOTRI,IEVENT,ISWIT,IFINIT,NEVENT,NRNDM
C
+KEEP,GCFLAG
      COMMON/GCFLAG/IDEBUG,IDEMIN,IDEMAX,ITEST,IDRUN,IDEVT,IEORUN
     +        ,IEOTRI,IEVENT,ISWIT(10),IFINIT(20),NEVENT,NRNDM(2)
      COMMON/GCFLAX/BATCH, NOLOG
      LOGICAL BATCH, NOLOG
C
+SEQ,GTFLAG,IF=TYPE.
+KEEP,GCNMEC
      PARAMETER(NMECA=45,IBLOWN=23)
      CHARACTER*4 CHNMEC(NMECA)
*
* *** Two blank spaces for FISF and CAPF which do not exist
*
* *** The low-neutron cross-sections have to be at the end for the
* *** logics of the routine to work, and they have to start at
* *** IBLOWN
      DATA CHNMEC /
     +     'HADF',  'INEF',  'ELAF',  'NULL',  'NULL',
     +     'HADG',  'INEG',  'ELAG',  'FISG',  'CAPG',
     +     'LOSS',  'PHOT',  'ANNI',  'COMP',  'BREM',
     +     'PAIR',  'DRAY',  'PFIS',  'RAYL',  'MUNU',
     +     'RANG',  'STEP',  'LOWN',  'NABS',  'NELA',
     +     'NINE',  'NINC',  'N,2N',  'N,3N',  'N,NA',
     +     'N2NA',  'N,NP',  'NFIS',  'N,GA',  'N,PR',
     +     'N,DE',  'N,TR',  'N3HE',  'N,AL',  'N,2A',
     +     'N,3A',  'N,2P',  'N,PA',  'NT2A',  'ND2A'/
*
+KEEP,GTOPTI
      INTEGER IOPTIM
+KEEP,GCOPTI
      COMMON/GCOPTI/ IOPTIM
C
+SEQ, GTOPTI, IF=TYPE
+KEEP,GCJLOC
      COMMON/GCJLOC/NJLOC(2),JTM,JMA,JLOSS,JPROB,JMIXT,JPHOT,JANNI
     +                  ,JCOMP,JBREM,JPAIR,JDRAY,JPFIS,JMUNU,JRAYL
     +                  ,JMULOF,JCOEF,JRANG
C
      INTEGER       NJLOC   ,JTM,JMA,JLOSS,JPROB,JMIXT,JPHOT,JANNI
     +                  ,JCOMP,JBREM,JPAIR,JDRAY,JPFIS,JMUNU,JRAYL
     +                  ,JMULOF,JCOEF,JRANG
C
      COMMON/GCJLCK/NJLCK(2),JTCKOV,JABSCO,JEFFIC,JINDEX,JCURIN
     +                      ,JPOLAR,JTSTRA,JTSTCO,JTSTEN,JTASHO
C
      EQUIVALENCE (JLASTV,JTSTEN)
C
      INTEGER       NJLCK,JTCKOV,JABSCO,JEFFIC,JINDEX,JCURIN
     +                   ,JPOLAR,JLASTV,JTSTRA,JTSTCO,JTSTEN
     +                   ,JTASHO
C
+KEEP,GTKINE.
      INTEGER       IKINE,ITRA,ISTAK,IVERT,IPART,ITRTYP,NAPART,IPAOLD
      REAL          PKINE,AMASS,CHARGE,TLIFE,VERT,PVERT
C
+KEEP,GCKINE
      COMMON/GCKINE/IKINE,PKINE(10),ITRA,ISTAK,IVERT,IPART,ITRTYP
     +      ,NAPART(5),AMASS,CHARGE,TLIFE,VERT(3),PVERT(4),IPAOLD
C
+SEQ,GTKINE,IF=TYPE.
+KEEP,GCKMAX
      INTEGER MXGKIN
      PARAMETER (MXGKIN=100)
+KEEP,GCKING
+SEQ, GCKMAX
      COMMON/GCKING/KCASE,NGKINE,GKIN(5,MXGKIN),
     +                           TOFD(MXGKIN),IFLGK(MXGKIN)
      INTEGER       KCASE,NGKINE ,IFLGK,MXPHOT,NGPHOT
      REAL          GKIN,TOFD,XPHOT
C
      PARAMETER (MXPHOT=800)
      COMMON/GCKIN2/NGPHOT,XPHOT(11,MXPHOT)
C
      COMMON/GCKIN3/GPOS(3,MXGKIN)
      REAL          GPOS
C
+KEEP,GTLIST.
      INTEGER       NHSTA,NGET ,NSAVE,NSETS,NPRIN,NGEOM,NVIEW,NPLOT
     + ,NSTAT,LHSTA,LGET ,LSAVE,LSETS,LPRIN,LGEOM,LVIEW,LPLOT,LSTAT
C
+KEEP,GCLIST
      COMMON/GCLIST/NHSTA,NGET ,NSAVE,NSETS,NPRIN,NGEOM,NVIEW,NPLOT
     +       ,NSTAT,LHSTA(20),LGET (20),LSAVE(20),LSETS(20),LPRIN(20)
     +             ,LGEOM(20),LVIEW(20),LPLOT(20),LSTAT(20)
C
+SEQ,GTLIST,IF=TYPE.
+KEEP,GCMATE
      COMMON/GCMATE/NMAT,NAMATE(5),A,Z,DENS,RADL,ABSL
C
      INTEGER NMAT,NAMATE
      REAL A,Z,DENS,RADL,ABSL
C
+KEEP,GCMULO
      COMMON/GCMULO/SINMUL(101),COSMUL(101),SQRMUL(101),OMCMOL,CHCMOL
     +  ,EKMIN,EKMAX,NEKBIN,NEK1,EKINV,GEKA,GEKB,EKBIN(200),ELOW(200)
C
      REAL SINMUL,COSMUL,SQRMUL,OMCMOL,CHCMOL,EKMIN,EKMAX,ELOW,EKINV
      REAL GEKA,GEKB,EKBIN
      INTEGER NEKBIN,NEK1
C
+KEEP,GCMZFO
      COMMON/GCMZFO/IOMATE,IOPART,IOTMED,IOSEJD,IOSJDD,IOSJDH,IOSTAK
     +             ,IOMZFO(13)
C
      INTEGER       IOMATE,IOPART,IOTMED,IOSEJD,IOSJDD,IOSJDH,IOSTAK
     +             ,IOMZFO
C
+KEEP,GTNUM.
      INTEGER      NMATE ,NVOLUM,NROTM,NTMED,NTMULT,NTRACK,NPART
     +            ,NSTMAX,NVERTX,NHEAD,NBIT ,NALIVE,NTMSTO
C
+KEEP,GCNUM
      COMMON/GCNUM/NMATE ,NVOLUM,NROTM,NTMED,NTMULT,NTRACK,NPART
     +            ,NSTMAX,NVERTX,NHEAD,NBIT
      COMMON /GCNUMX/ NALIVE,NTMSTO
C
+SEQ,GTNUM,IF=TYPE.
+KEEP,GTCONS
      REAL          PI,TWOPI,PIBY2,DEGRAD,RADDEG,CLIGHT,BIG,EMASS
      REAL          EMMU,PMASS,AVO
C
+KEEP,GCONSP,IF=SINGLE
      REAL PI,TWOPI,PIBY2,DEGRAD,RADDEG,CLIGHT,BIG,EMASS
      REAL EMMU,PMASS,AVO
*
      PARAMETER (PI=3.14159265358979324)
      PARAMETER (TWOPI=6.28318530717958648)
      PARAMETER (PIBY2=1.57079632679489662)
      PARAMETER (DEGRAD=0.0174532925199432958)
      PARAMETER (RADDEG=57.2957795130823209)
      PARAMETER (CLIGHT=29979245800.)
      PARAMETER (BIG=10000000000.)
      PARAMETER (EMASS=0.00051099906)
      PARAMETER (EMMU=0.105658389)
      PARAMETER (PMASS=0.93827231)
      PARAMETER (AVO=0.60221367)
*
+KEEP,GCONSP,IF=-SINGLE
      DOUBLE PRECISION PI,TWOPI,PIBY2,DEGRAD,RADDEG,CLIGHT,BIG,EMASS
      DOUBLE PRECISION EMMU,PMASS,AVO
*
      PARAMETER (PI=3.14159265358979324D0)
      PARAMETER (TWOPI=6.28318530717958648D0)
      PARAMETER (PIBY2=1.57079632679489662D0)
      PARAMETER (DEGRAD=0.0174532925199432958D0)
      PARAMETER (RADDEG=57.2957795130823209D0)
      PARAMETER (CLIGHT=29979245800.D0)
      PARAMETER (BIG=10000000000.D0)
      PARAMETER (EMASS=0.0005109990615D0)
      PARAMETER (EMMU=0.105658387D0)
      PARAMETER (PMASS=0.9382723128D0)
      PARAMETER (AVO=0.60221367D0)
*
+KEEP,GCONST.
+SEQ, GTCONS, IF=TYPE.
      COMMON/GCONST/PI,TWOPI,PIBY2,DEGRAD,RADDEG,CLIGHT,BIG,EMASS
      COMMON/GCONSX/EMMU,PMASS,AVO
C
+KEEP,GTPHYS.
      INTEGER IPAIR,ICOMP,IPHOT,IPFIS,IDRAY,IANNI,IBREM,IHADR,IMUNU
     +       ,IDCAY,ILOSS,IMULS,IRAYL,ILABS,ISYNC,ISTRA
      REAL    SPAIR,SLPAIR,ZINTPA,STEPPA,SCOMP,SLCOMP,ZINTCO,STEPCO
     +       ,SPHOT,SLPHOT,ZINTPH,STEPPH,SPFIS,SLPFIS,ZINTPF,STEPPF
     +       ,SDRAY,SLDRAY,ZINTDR,STEPDR,SANNI,SLANNI,ZINTAN,STEPAN
     +       ,SBREM,SLBREM,ZINTBR,STEPBR,SHADR,SLHADR,ZINTHA,STEPHA
     +       ,SMUNU,SLMUNU,ZINTMU,STEPMU,SDCAY,SLIFE ,SUMLIF,DPHYS1
     +       ,SLOSS,SOLOSS,STLOSS,DPHYS2,SMULS,SOMULS,STMULS,DPHYS3
     +       ,SRAYL,SLRAYL,ZINTRA,STEPRA,SLABS,SLLABS,ZINTLA,STEPLA
C
+KEEP,GCPHYS
      COMMON/GCPHYS/IPAIR,SPAIR,SLPAIR,ZINTPA,STEPPA
     +             ,ICOMP,SCOMP,SLCOMP,ZINTCO,STEPCO
     +             ,IPHOT,SPHOT,SLPHOT,ZINTPH,STEPPH
     +             ,IPFIS,SPFIS,SLPFIS,ZINTPF,STEPPF
     +             ,IDRAY,SDRAY,SLDRAY,ZINTDR,STEPDR
     +             ,IANNI,SANNI,SLANNI,ZINTAN,STEPAN
     +             ,IBREM,SBREM,SLBREM,ZINTBR,STEPBR
     +             ,IHADR,SHADR,SLHADR,ZINTHA,STEPHA
     +             ,IMUNU,SMUNU,SLMUNU,ZINTMU,STEPMU
     +             ,IDCAY,SDCAY,SLIFE ,SUMLIF,DPHYS1
     +             ,ILOSS,SLOSS,SOLOSS,STLOSS,DPHYS2
     +             ,IMULS,SMULS,SOMULS,STMULS,DPHYS3
     +             ,IRAYL,SRAYL,SLRAYL,ZINTRA,STEPRA
      COMMON/GCPHLT/ILABS,SLABS,SLLABS,ZINTLA,STEPLA
     +             ,ISYNC
     +             ,ISTRA
*
+SEQ,GTPHYS,IF=TYPE.
+KEEP,GTPARM.
      INTEGER IPARAM,MPSTAK,NSPARA,NPGENE
      REAL    PCUTGA,PCUTEL,PCUTNE,PCUTHA,PCUTMU
+KEEP,GCPARM.
      COMMON/GCPARM/IPARAM,PCUTGA,PCUTEL,PCUTNE,PCUTHA,PCUTMU
     +             ,NSPARA,MPSTAK,NPGENE
      REAL PACUTS(5)
      EQUIVALENCE (PACUTS(1),PCUTGA)
+SEQ,GTPARM,IF=TYPE.
C
+KEEP,GCPOLY
      COMMON/GCPOLY/IZSEC,IPSEC
      INTEGER IZSEC,IPSEC
C
+KEEP,GCPUSH
      COMMON/GCPUSH/NCVERT,NCKINE,NCJXYZ,NPVERT,NPKINE,NPJXYZ
      INTEGER       NCVERT,NCKINE,NCJXYZ,NPVERT,NPKINE,NPJXYZ
C
+KEEP,GCRZ
      COMMON/GCRZ1/NRECRZ,NRGET,NRSAVE,LRGET(20),LRSAVE(20)
      INTEGER      NRECRZ,NRGET,NRSAVE,LRGET    ,LRSAVE
      COMMON/GCRZ2/RZTAGS
      CHARACTER*8 RZTAGS(4)
C
+KEEP,GTSETS.
      INTEGER       IHSET,IHDET,ISET,IDET,IDTYPE,NVNAME,NUMBV
C
+KEEP,GCSETS.
      COMMON/GCSETS/IHSET,IHDET,ISET,IDET,IDTYPE,NVNAME,NUMBV(20)
C
+SEQ,GTSETS,IF=TYPE.
+KEEP,GTSTAK.
      INTEGER  NJTMAX,NJTMIN,NTSTKP,NTSTKS,NDBOOK,NDPUSH,NJFREE,NJGARB,
     +         NJINVO,LINSAV,LMXSAV,NWSTAK,NWINT,NWREAL,NWTRAC
      INTEGER ISTORD
+KEEP,GCSHNO.
      PARAMETER ( NSBOX=1,  NSTRD1=2, NSTRD2=3, NSTRAP=4, NSTUBE=5,
     +  NSTUBS=6, NSCONE=7, NSCONS=8, NSSPHE=9, NSPARA=10,NSPGON=11,
     +  NSPCON=12,NSELTU=13,NSHYPE=14,NSGTRA=28, NSCTUB=29 )
+KEEP,GCSTAK.
+SEQ,GTSTAK,IF=TYPE.
      PARAMETER (NWSTAK=12,NWINT=11,NWREAL=12,NWTRAC=NWINT+NWREAL+5)
      COMMON /GCSTAK/ NJTMAX, NJTMIN, NTSTKP, NTSTKS, NDBOOK, NDPUSH,
     +                NJFREE, NJGARB, NJINVO, LINSAV(15), LMXSAV(15)
      EQUIVALENCE (ISTORD,NJTMIN)
C
+KEEP,GCSTRA.
      PARAMETER (ILTAB=200)
      COMMON /GCSTRA / EMAX,EM(200),SFINT,EPSR(ILTAB),EPSI(ILTAB),
     +  FINT(ILTAB),EMIN,EPPS,BETA2,GAMMA2,WP2,S2,MEEV,EMM(200),
     +  GAMLOG(21),NP,NTAB,IE,NFACT,NICOLL
*
      INTEGER NP,NTAB,IE,NFACT
      REAL    EMAX,EM,SFINT,EPSR,EPSI,FINT,EMIN,EPPS,EMM,GAMLOG
     +        ,BETA2,GAMMA2,WP2,S2,MEEV
*
+KEEP,GTASHO
      REAL         ZMED,AMED,DMED,E0MED,ZSMED,ESMED,ALFA,
     *             STEP,PLIN,PLOG,BE2,PLASM,TRNSMA,
     *             BOSC,AOSC,EOSC,ZOSC,EMEAN,CMGO,EMGO,EMGOMI
      INTEGER      NSMED,IOSC,NOSC,NMGO,NMGOMA
C
+KEEP,GCASHO
      COMMON/GCASHO/ZMED,AMED,DMED,E0MED,ZSMED(50),ESMED(50),ALFA,
     *             STEP,PLIN,PLOG,BE2,PLASM,TRNSMA,
     *             BOSC(50),AOSC(50),EOSC(50),ZOSC(50),EMEAN,
     *             CMGO(2000),EMGO,EMGOMI,
     *             NSMED,IOSC(50),NOSC,NMGO,NMGOMA
C
+SEQ,GTASHO,IF=TYPE.
+KEEP,GCTIME
      COMMON/GCTIME/TIMINT,TIMEND,ITIME,IGDATE,IGTIME
      INTEGER ITIME,IGDATE,IGTIME
      REAL TIMINT,TIMEND
C
+KEEP,GTHIL2.
      INTEGER LARETT,JTICK,JMYLL,JFIMOT,JFISCA,JFINAM,
     +        JAASS1,JAASS2,JAASS3,JAASS4,
     +        JTICKS,JMYLLS,JMYMOT
+KEEP,GCHIL2.
+SEQ, GTHIL2, IF=TYPE
      COMMON/GCHIL2/LARETT(2),JTICK,JMYLL,JFIMOT,JFISCA,JFINAM,
     +              JAASS1,JAASS2,
     +              JAASS3,JAASS4,JTICKS,JMYLLS,JMYMOT
*
+KEEP,GTTMED.
      INTEGER       NUMED,NATMED,ISVOL,IFIELD,IUPD,ISTPAR,NUMOLD
      REAL          FIELDM,TMAXFD,STEMAX,DEEMAX,EPSIL,STMIN,CFIELD,PREC
      INTEGER       JMIN,NPCKOV,IMCKOV,ITCKOV
      REAL          THRIND,PMIN,DP,DNDL
C
+KEEP,GCTMED
      COMMON/GCTMED/NUMED,NATMED(5),ISVOL,IFIELD,FIELDM,TMAXFD,STEMAX
     +      ,DEEMAX,EPSIL,STMIN,CFIELD,PREC,IUPD,ISTPAR,NUMOLD
      COMMON/GCTLIT/THRIND,PMIN,DP,DNDL,JMIN,ITCKOV,IMCKOV,NPCKOV
C
+SEQ,GTTMED,IF=TYPE.
+KEEP,GTTRAK.
      INTEGER NMEC,LMEC,NAMEC,NSTEP ,MAXNST,IGNEXT,INWVOL,ISTOP,MAXMEC
     + ,IGAUTO,IEKBIN,ILOSL, IMULL,INGOTO,NLDOWN,NLEVIN,NLVSAV,ISTORY
     + ,MAXME1,NAMEC1
      REAL  VECT,GETOT,GEKIN,VOUT,DESTEP,DESTEL,SAFETY,SLENG ,STEP
     + ,SNEXT,SFIELD,TOFG  ,GEKRAT,UPWGHT
      REAL POLAR
+KEEP,GCTRAK
+SEQ,GTTRAK,IF=TYPE.
      PARAMETER (MAXMEC=30)
      COMMON/GCTRAK/VECT(7),GETOT,GEKIN,VOUT(7),NMEC,LMEC(MAXMEC)
     + ,NAMEC(MAXMEC),NSTEP ,MAXNST,DESTEP,DESTEL,SAFETY,SLENG
     + ,STEP  ,SNEXT ,SFIELD,TOFG  ,GEKRAT,UPWGHT,IGNEXT,INWVOL
     + ,ISTOP ,IGAUTO,IEKBIN, ILOSL, IMULL,INGOTO,NLDOWN,NLEVIN
     + ,NLVSAV,ISTORY
      PARAMETER (MAXME1=30)
      COMMON/GCTPOL/POLAR(3), NAMEC1(MAXME1)
C
+KEEP,GCUNIT
      COMMON/GCUNIT/LIN,LOUT,NUNITS,LUNITS(5)
      INTEGER LIN,LOUT,NUNITS,LUNITS
      COMMON/GCMAIL/CHMAIL
      CHARACTER*132 CHMAIL
C
+KEEP,GTVOLU.
      INTEGER NLEVEL,NAMES,NUMBER,LVOLUM,LINDEX,INFROM,NLEVMX,
     +        NLDEV,LINMX
      REAL GTRAN,GRMAT,GONLY,GLX
+KEEP,GCVOLU
      COMMON/GCVOLU/NLEVEL,NAMES(15),NUMBER(15),
     +LVOLUM(15),LINDEX(15),INFROM,NLEVMX,NLDEV(15),LINMX(15),
     +GTRAN(3,15),GRMAT(10,15),GONLY(15),GLX(3)
C
+SEQ,GTVOLU,IF=TYPE.
+KEEP,GTVOL1.
      INTEGER NAMES1,NUMBR1,LVOLU1
+KEEP,GCVOL1
      COMMON/GCVOL1/NLEVL1,NAMES1(15),NUMBR1(15),LVOLU1(15)
C
+SEQ,GTVOL1,IF=TYPE.
+KEEP,GCVOL2
      COMMON/GCVOL2/NLEVE2,NAMES2(15),NUMB2(15),
     +LVOL2(15),LIND2(15),INFRO2,NLDEV2(15),LINMX2(15),
     +GTRAN2(3,15),GRMAT2(10,15),GONLY2(15),GLX2(15)
      INTEGER NLEVE2,NAMES2,NUMB2,LVOL2,LIND2,INFRO2,NLDEV2,LINMX2
      REAL GTRAN2,GRMAT2,GONLY2,GLX2
C
+KEEP,GTDRAW.
      INTEGER NUMNOD,MAXNOD,NUMND1,LEVVER,LEVHOR,MAXV,IPICK,
     + MLEVV,MLEVH,NWCUT,JNAM,JMOT,JXON,JBRO,JDUP,JSCA,JDVM,JPSM,
     + JNAM1,JMOT1,JXON1,JBRO1,JDUP1,JSCA1,JULEV,JVLEV,
     + LOOKTB,IDRNUM,NGVIEW,ICUTFL,ICUT,NSURF,ISURF,LINATT,LINATP,
     + ITXATT,ITHRZ,IPRJ,ITR3D,IPKHIT,IOBJ,LINBUF,
     + MAXGU,MORGU,MAXGS,MORGS,MAXTU,MORTU,MAXTS,MORTS,
     + IGU,IGS,ITU,ITS,NKVIEW,IDVIEW,
     + NOPEN,IGMR,IPIONS,ITRKOP,IHIDEN,MYISEL
      REAL GRMAT0,GTRAN0,GSIN,GCOS,SINPSI,COSPSI,GTHETA,GPHI,GPSI,
     + GU0,GV0,GSCU,GSCV,CTHETA,CPHI,DCUT,GZUA,GZVA,GZUB,GZVB,GZUC,
     + GZVC,PLTRNX,PLTRNY,DPERS,ZZFU,ZZFV,DDUMMY
+KEEP,GCDRAW
      COMMON/GCDRAW/NUMNOD,MAXNOD,NUMND1,LEVVER,LEVHOR,MAXV,IPICK,
     + MLEVV,MLEVH,NWCUT,JNAM,JMOT,JXON,JBRO,JDUP,JSCA,JDVM,JPSM,
     + JNAM1,JMOT1,JXON1,JBRO1,JDUP1,JSCA1,JULEV,JVLEV,
     + LOOKTB(16),
     + GRMAT0(10),GTRAN0(3),IDRNUM,GSIN(41),GCOS(41),SINPSI,COSPSI,
     + GTHETA,GPHI,GPSI,GU0,GV0,GSCU,GSCV,NGVIEW,
     + ICUTFL,ICUT,CTHETA,CPHI,DCUT,NSURF,ISURF,
     + GZUA,GZVA,GZUB,GZVB,GZUC,GZVC,PLTRNX,PLTRNY,
     + LINATT,LINATP,ITXATT,ITHRZ,IPRJ,DPERS,ITR3D,IPKHIT,IOBJ,LINBUF,
     + MAXGU,MORGU,MAXGS,MORGS,MAXTU,MORTU,MAXTS,MORTS,
     + IGU,IGS,ITU,ITS,NKVIEW,IDVIEW,
     + NOPEN,IGMR,IPIONS,ITRKOP,IHIDEN,
     + ZZFU,ZZFV,MYISEL,
     + DDUMMY(15)
C
+SEQ,GTDRAW,IF=TYPE.
+KEEP,GSECTI
      COMMON/GSECTI/ AIEL(20),AIIN(20),AIFI(20),AICA(20),ALAM,K0FLAG
      INTEGER K0FLAG
      REAL AIEL,AIIN,AIFI,AICA,ALAM
C
+KEEP,GCGOBJ
      PARAMETER (NTRCG=1)
      PARAMETER (NWB=207,NWREV=100,NWS=1500)
      PARAMETER (C2TOC1=7.7, C3TOC1=2.,TVLIM=1296.)
      COMMON /GCGOBJ/IST,IFCG,ILCG,NTCUR,NFILT,NTNEX,KCGST
     +             ,NCGVOL,IVFUN,IVCLOS,IFACST,NCLAS1,NCLAS2,NCLAS3
      COMMON /CGBLIM/IHOLE,CGXMIN,CGXMAX,CGYMIN,CGYMAX,CGZMIN,CGZMAX
C
+KEEP,GTSCAN
      INTEGER MSLIST,NPHI,IPHIMI,IPHIMA,IPHI1,IPHIL,NTETA,MODTET,NSLMAX,
     +        MAXMDT,NSLIST,ISLIST,IPHI,ITETA,ISCUR
      REAL    PHIMIN,PHIMAX,TETMIN,TETMAX,VSCAN,FACTX0,FACTL,
     +        FACTR,SX0,SABS,TETMID,TETMAD
     +       ,SX0S,SX0T,SABSS,SABST,FACTSF
     +       ,DLTPHI,DLTETA,DPHIM1,DTETM1
     +       ,FCX0M1,FCLLM1,FCRRM1
+KEEP,GCSCAN
+SEQ,GTSCAN, IF=TYPE
      PARAMETER (MSLIST=32,MAXMDT=3)
      COMMON/GCSCAN/SCANFL,NPHI,PHIMIN,PHIMAX,NTETA,TETMIN,TETMAX,
     +              MODTET,IPHIMI,IPHIMA,IPHI1,IPHIL,NSLMAX,
     +              NSLIST,ISLIST(MSLIST),VSCAN(3),FACTX0,FACTL,
     +              FACTR,IPHI,ITETA,ISCUR,SX0,SABS,TETMID(MAXMDT),
     +              TETMAD(MAXMDT)
     +             ,SX0S,SX0T,SABSS,SABST,FACTSF
     +             ,DLTPHI,DLTETA,DPHIM1,DTETM1
     +             ,FCX0M1,FCLLM1,FCRRM1
      LOGICAL SCANFL
      COMMON/GCSCAC/SFIN,SFOUT
      CHARACTER*80 SFIN,SFOUT
*
+KEEP,GTSCAL.
      INTEGER MXSLNK, ISLINK, LSLAST, LSCAN, LSTEMP, LSPARA, LSERAY
*
+KEEP,GCSCAL.
+SEQ,GTSCAL, IF=TYPE
      PARAMETER(MXSLNK=100)
      COMMON/GCSCAL/ ISLINK(MXSLNK)
      EQUIVALENCE (LSLAST,ISLINK(MXSLNK))
      EQUIVALENCE (LSCAN ,ISLINK(1)),(LSTEMP,ISLINK(2))
      EQUIVALENCE (LSPARA,ISLINK(3)),(LSERAY,ISLINK(4))
*
+KEEP,GTPARA.
      INTEGER    BITPHI, BITTET, BITPOT
      LOGICAL    SYMPHI, SYMTEU, SYMTED
+KEEP,GCPARA.
+SEQ,GTPARA.
      PARAMETER (LSTACK = 5000)
C     BITPOT is for Phi.Or.Tet
C
C ---------------------------------------------------------
      COMMON    /GCPARA/
     +                   EPSIX0 (LSTACK)       ,
     +                   IDRPHI (LSTACK     )  , IDRTET (LSTACK     ),
     +                   IDROUT (LSTACK     )  , JPLOST (LSTACK     ),
     +                   IPHTMP (LSTACK     )  ,
     +                   BITPHI (LSTACK     )  , BITTET (LSTACK     ),
     +                   BITPOT (LSTACK     )  , JJLOST, JJFILL,
     +                                           JENTRY, JEMPTY,
     +                                           EPSMAX,
     +                   JJTEMP, JJWORK        , JJSTK1,
     +                   J1TEMP,                 J1STK1,
     +                   IFOUNP, IFOUNT        , IFNPOT,
     +                                           SYMPHI,
     +                   SYMTEU, SYMTED
C
+KEEP,GTJUMP
      INTEGER       JUDCAY, JUDIGI, JUDTIM, JUFLD , JUHADR, JUIGET,
     +              JUINME, JUINTI, JUKINE, JUNEAR, JUOUT , JUPHAD,
     +              JUSKIP, JUSTEP, JUSWIM, JUTRAK, JUTREV, JUVIEW,
     +              JUPARA
      INTEGER       JMPADR, MAXJMP
*
+KEEP,GCJUMP
+SEQ ,GTJUMP, IF=TYPE
      PARAMETER    (MAXJMP=30)
      COMMON/GCJUMP/JUDCAY, JUDIGI, JUDTIM, JUFLD , JUHADR, JUIGET,
     +              JUINME, JUINTI, JUKINE, JUNEAR, JUOUT , JUPHAD,
     +              JUSKIP, JUSTEP, JUSWIM, JUTRAK, JUTREV, JUVIEW,
     +              JUPARA
      DIMENSION     JMPADR(MAXJMP)
      EQUIVALENCE  (JMPADR(1), JUDCAY)
*
+KEEP,GCOMIS
      COMMON/GCOMIS/JUINIT,JUGEOM,JUKINE,JUSTEP,JUOUT,JULAST
      DIMENSION JPCOMS(6)
      EQUIVALENCE (JPCOMS,JUINIT)
*
+KEEP,GCXLUN
      COMMON/GCXLUN/LUNIT(128)
*
+KEEP,GTMUTR
*
      INTEGER NCVOLS,NSHIFT,KSHIFT,ICUBE,NAIN,JJJ,NIET,IVOOLD,
     +        IWPOIN,IHPOIN,IVECVO,IOLDSU,ICGP,IPORNT
      REAL    GXMIN,GXMAX,GYMIN,GYMAX,GZMIN,GZMAX,GXXXX,GYYYY,GZZZZ
      REAL    CLIPMI,CLIPMA,ABCD,BMIN,BMAX,CGB,CGB1,GBOOM
      REAL    PORGX,PORGY,PORGZ,POX,POY,POZ,PORMIR,PORMAR
+KEEP,GCMUTR
+SEQ, GTMUTR, IF=TYPE
*
      PARAMETER (MULTRA=50)
      CHARACTER*4 GNASH, GNNVV, GNVNV
      COMMON/GCMUTR/NCVOLS,KSHIFT,NSHIFT,ICUBE,NAIN,JJJ,
     +              NIET,IOLDSU,IVOOLD,IWPOIN,IHPOIN,IVECVO(100),
     +              PORGX,PORGY,PORGZ,POX(15),POY(15),POZ(15),GBOOM,
     +              PORMIR(18),PORMAR(18),IPORNT,
     +              ICGP,CLIPMI(6),CLIPMA(6),
     +              ABCD(4),BMIN(6),BMAX(6),CGB(16000),CGB1(16000),
     +              GXMIN(MULTRA),GXMAX(MULTRA),GYMIN(MULTRA),
     +              GYMAX(MULTRA),GZMIN(MULTRA),GZMAX(MULTRA),
     +              GXXXX(MULTRA),GYYYY(MULTRA),GZZZZ(MULTRA)
*
      COMMON/GCMUTC/   GNASH(MULTRA),GNNVV(MULTRA),GNVNV(MULTRA)
*
+KEEP,GTHILN.
      INTEGER LARECG,JCGOBJ,JCGCOL,JCOUNT,JCLIPS,IMPOIN,IMCOUN,
     +        JSIX,JSIY,JSIZ,JPXC,JPYC,JPZC,ICLIP1,ICLIP2
+KEEP,GCHILN.
+SEQ, GTHILN, IF=TYPE
      COMMON/GCHILN/LARECG(2), JCGOBJ, JCGCOL, JCOUNT, JCLIPS,
     +              IMPOIN, IMCOUN, JSIX, JSIY, JSIZ,
     +              JPXC, JPYC, JPZC, ICLIP1, ICLIP2
*
+KEEP,GTSPEE
*
      REAL S1,S2,S3,SS1,SS2,SS3,SRAGMX,SRAGMN,
     +     RAINT1,RAINT2,RMIN1,RMIN2,RMAX1,RMAX2
      INTEGER ISCOP,NTIM,NTFLAG,IOLDCU,ITSTCU,ISUBLI,IPORLI
      INTEGER LPASS,JPORJJ,LEP,JSC
*
+KEEP,GCSPEE.
+SEQ, GTSPEE, IF=TYPE
      COMMON/GCSPEE/S1,S2,S3,SS1,SS2,SS3,LEP,IPORLI,ISUBLI,
     +              SRAGMX,SRAGMN,RAINT1,RAINT2,RMIN1,RMIN2,
     +              RMAX1,RMAX2,JPORJJ,ITSTCU,IOLDCU,ISCOP,
     +              NTIM,NTFLAG,LPASS,JSC
*
+KEEP, LUJETS
      COMMON/LUJETS/N,K(4000,5),P(4000,5),V(4000,5)
      INTEGER N,K
      REAL P,V
      SAVE /LUJETS/
*
+KEEP, LUDAT1
      COMMON/LUDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200)
      INTEGER MSTU,MSTJ
      REAL    PARU,PARJ
      SAVE /LUDAT1/
*
+KEEP, LUDAT3
      COMMON/LUDAT3/MDCY(500,3),MDME(2000,2),BRAT(2000),KFDP(2000,5)
      INTEGER MDCY,MDME,KFDP
      REAL    BRAT
      SAVE /LUDAT3/
*
+KEEP,GCLUND
      COMMON/GCLUND/IFLUND,ECLUND
      INTEGER IFLUND
      REAL ECLUND
C
+KEEP,PAWCT
      INTEGER NWPAW,IXPAWC,IHBOOK,IXHIGZ,IXKUIP,IFENCE,LLMAIN,IQQ,LQQ
      REAL WWS,QQ
+KEEP,PAWC
+SEQ,PAWCT,IF=TYPE.
      COMMON /PAWC/ NWPAW,IXPAWC,IHBOOK,IXHIGZ,IXKUIP,IFENCE(5),
     +              LLMAIN, WWS(9989)
      DIMENSION IQQ(2),QQ(2),LQQ(8000)
      EQUIVALENCE (QQ(1),IQQ(1),LQQ(9)),(LQQ(1),LLMAIN)
C
+KEEP,GCPMXZ.
      INTEGER MAXELZ
      PARAMETER (MAXELZ=100)
C
+KEEP,GC10EV.
      REAL G10EV,TENEV
      PARAMETER (G10EV=1.0E-8)
      PARAMETER (TENEV=1.E-2)
C
+KEEP,GCSHPT.
C  Shells are numbered from 1 to 24.
C  Shells used:
C               K,L1,L2,L3,M1,M2,M3,M4,M5
C               N1,N2,N3,N4,N5,N6,N7,
C               O1,O2,O3,O4,O5,P1,P2,P3
C   VARIABLES:
C     NSHLST - value of Z for which the shells starts to be present
C     N1ST   - pointer to K shell of a given Z (in ESHELL array)
C     NSHLLS - Number of used shells for a given Z
C     ESHELL - Shells potentials in eV !!!
      INTEGER LENGTH,MAXSHL
      PARAMETER (LENGTH=  1409)
      PARAMETER (MAXSHL=24)
      INTEGER NSHLST,N1ST,NSHLLS
      REAL ESHELL
      DIMENSION NSHLST(MAXSHL),N1ST(MAXELZ),NSHLLS(MAXELZ)
      DIMENSION ESHELL(LENGTH)
      COMMON /GCSHPT/NSHLST,N1ST,NSHLLS,ESHELL
C
+KEEP,GCPHPR.
C  Probability of radiative decay mode.
      REAL GFLUPR
      COMMON /GCPHPR/ GFLUPR(4,MAXELZ)
C
+KEEP,GCPHNR.
C  INRFIN - nonradiative decay mode
      INTEGER IGNRFN
      COMMON /GCPHNR/ IGNRFN(8,MAXELZ)
C
+KEEP,GCPHRD.
C  GRATE - radiative modes' rates
      INTEGER KSHLS,L1SHLS,L2SHLS,L3SHLS,ISHLS,ISHLUS,ISHLTR
      REAL GPHRAT
      PARAMETER (KSHLS=6)
      PARAMETER (L1SHLS=8)
      PARAMETER (L2SHLS=7)
      PARAMETER (L3SHLS=8)
      PARAMETER (ISHLS=29)
      COMMON / GCPHRD / GPHRAT(ISHLS,MAXELZ),ISHLUS(24,4),ISHLTR(ISHLS)
C
+KEEP,GCPHXS.
      INTEGER MAXPOW,MAXINT
      PARAMETER (MAXPOW=4)
      PARAMETER (MAXINT=13)
      CHARACTER*6 CRNGUP
      COMMON /GCPXRN/ CRNGUP(MAXINT,MAXELZ)
      REAL COFS,GPOMIN
      COMMON /GCPXCF/ COFS(MAXPOW,MAXINT,MAXELZ),GPOMIN(MAXELZ)
C
+KEEP, GFKDIS
      COMMON/ GFKDIS/ ZINE, ZELA, ZTOT, INT
     +               ,SINE, SELA, FSIG, IFMAT, IGF
C
C
+KEEP,GTHVIR.
      INTEGER JVIRT,JVDIV,JCONT2,JCONT
+KEEP,GCHVIR
      COMMON/GCHVIR/JVIRT,JVDIV,JCONT2,JCONT
C
+SEQ,GTHVIR,IF=TYPE.
C
+KEEP,GTVDMA.
      INTEGER NVMANY,MANYLE,MANYNA,MANYNU,
     +        NFMANY,MYCOUN,IMYSE
      REAL RAYTRA,VECCOS
+KEEP,GCVDMA
      COMMON/GCVDMA/NVMANY,MANYLE(20),MANYNA(20,15),
     +MANYNU(20,15),NFMANY,MYCOUN,IMYSE,RAYTRA,VECCOS(3)
C
+SEQ,GTVDMA,IF=TYPE.
C
+KEEP,GTFDIM.
      INTEGER NPROC,NMPTOT
      REAL TSEQTO,TOTMBY,TSEQ,TLAT,TNET,X1MIN,X1MAX,
     +     Y1MIN,Y1MAX,Z1MIN,Z1MAX,XCUT,YCUT,ZCUT
+KEEP,GCFDIM
      COMMON/GCFDIM/NPROC,NMPTOT,TSEQTO,TOTMBY,TSEQ,
     +TLAT,TNET,X1MIN,X1MAX,Y1MIN,Y1MAX,Z1MIN,Z1MAX,
     +XCUT,YCUT,ZCUT
C
+SEQ,GTFDIM,IF=TYPE.
C
+KEEP,GTRAYT.
      INTEGER INTEN,IOMBRA,IXYFLA,NOFLAG
      REAL XLPOS,YLPOS,ZLPOS,XLDIR,YLDIR,ZLDIR,APFLAH,
     +     CCXX,CCYY,CCZZ,BOFLAG,APFLAG,
     +     XCOSXS,YCOSYS,ZCOSZS,VDX,VDY,VDZ,SSLENG,
     +     XPINTS,YPINTS,ZPINTS,FPINTX,FPINTY,FPINTZ,
     +     AROTS,ZROTS,RRR
+KEEP,GCRAYT
      COMMON/GCRAYT/INTEN,IOMBRA,IXYFLA,NOFLAG,
     +XLPOS,YLPOS,ZLPOS,XLDIR,YLDIR,ZLDIR,APFLAH,
     +CCXX(4),CCYY(4),CCZZ(4),BOFLAG,APFLAG,
     +XCOSXS,YCOSYS,ZCOSZS,VDX,VDY,VDZ,SSLENG,
     +XPINTS,YPINTS,ZPINTS,FPINTX,FPINTY,FPINTZ,
     +AROTS(4,4),ZROTS(4,4),RRR(4)
C
+SEQ,GTRAYT,IF=TYPE.
C
+KEEP,GTPIXE.
      INTEGER LIMPRE,IFLAPE,ICOLOR,IXXX,IYYY,
     +        ISSEEN,ISCOLO,ISLSTY,ISLWID,ISFILL,
     +        IMAP,JON,NMAP
      REAL UUU,VVV,ZUV,ZNMAP1
+KEEP,GCPIXE
      COMMON/GCPIXE/LIMPRE,IFLAPE,ICOLOR,IXXX,IYYY,
     +ISSEEN,ISCOLO,ISLSTY,ISLWID,ISFILL,
     +IMAP,JON,NMAP,UUU,VVV,ZUV,ZNMAP1
C
+SEQ,GTPIXE,IF=TYPE.
 
+DECK,INCDEK,IF=INCLUDE.
*CMZ :  3.21/02 29/03/94  15.41.18  by  S.Giani
*-- Author :
+KEEP,GCLINK
*
+SEQ,INCBEG
     +   gclink
+SEQ,INCEND
+KEEP,GCBANK
*
+SEQ,INCBEG
     +   gcbank
+SEQ,INCEND
+KEEP,GCCURS
*
+SEQ,INCBEG
     +   gccurs
+SEQ,INCEND
+KEEP,GCCUTS
*
+SEQ,INCBEG
     +   gccuts
+SEQ,INCEND
+KEEP,GCURSB
*
+SEQ,INCBEG
     +   gcursb
+SEQ,INCEND
+KEEP,GCFLAG
*
+SEQ,INCBEG
     +   gcflag
+SEQ,INCEND
+KEEP,GCOPTI
*
+SEQ,INCBEG
     +   gcopti
+SEQ,INCEND
+KEEP,GCJLOC
*
+SEQ,INCBEG
     +   gcjloc
+SEQ,INCEND
+KEEP,GCKINE
*
+SEQ,INCBEG
     +   gckine
+SEQ,INCEND
+KEEP,GCKMAX
*
+SEQ,INCBEG
     +   gckmax
+SEQ,INCEND
+KEEP,GCKING
*
+SEQ,INCBEG
     +   gcking
+SEQ,INCEND
+KEEP,GCLIST
*
+SEQ,INCBEG
     +   gclist
+SEQ,INCEND
+KEEP,GCMATE
*
+SEQ,INCBEG
     +   gcmate
+SEQ,INCEND
+KEEP,GCMULO
*
+SEQ,INCBEG
     +   gcmulo
+SEQ,INCEND
+KEEP,GCMZFO
*
+SEQ,INCBEG
     +   gcmzfo
+SEQ,INCEND
+KEEP,GCNUM
*
+SEQ,INCBEG
     +   gcnum
+SEQ,INCEND
+KEEP,GCONSP
*
+SEQ,INCBEG
     +   gconsp
+SEQ,INCEND
+KEEP,GCONST
*
+SEQ,INCBEG
     +   gconst
+SEQ,INCEND
+KEEP,GCPHYS
*
+SEQ,INCBEG
     +   gcphys
+SEQ,INCEND
+KEEP,GCPARM
*
+SEQ,INCBEG
     +   gcparm
+SEQ,INCEND
+KEEP,GCPOLY
*
+SEQ,INCBEG
     +   gcpoly
+SEQ,INCEND
+KEEP,GCPUSH
*
+SEQ,INCBEG
     +   gcpush
+SEQ,INCEND
+KEEP,GCRZ
*
+SEQ,INCBEG
     +   gcrz
+SEQ,INCEND
+KEEP,GCSETS
*
+SEQ,INCBEG
     +   gcsets
+SEQ,INCEND
+KEEP,GCSHNO
*
+SEQ,INCBEG
     +   gcshno
+SEQ,INCEND
+KEEP,GCSTAK
*
+SEQ,INCBEG
     +   gcstak
+SEQ,INCEND
+KEEP,GCTIME
*
+SEQ,INCBEG
     +   gctime
+SEQ,INCEND
+KEEP,GCHIL2
*
+SEQ,INCBEG
     +   gchil2
+SEQ,INCEND
+KEEP,GCTMED
*
+SEQ,INCBEG
     +   gctmed
+SEQ,INCEND
+KEEP,GCTRAK
*
+SEQ,INCBEG
     +   gctrak
+SEQ,INCEND
+KEEP,GCUNIT
*
+SEQ,INCBEG
     +   gcunit
+SEQ,INCEND
+KEEP,GCVOLU
*
+SEQ,INCBEG
     +   gcvolu
+SEQ,INCEND
+KEEP,GCVOL1
*
+SEQ,INCBEG
     +   gcvol1
+SEQ,INCEND
+KEEP,GCVOL2
*
+SEQ,INCBEG
     +   gcvol2
+SEQ,INCEND
+KEEP,GCDRAW
*
+SEQ,INCBEG
     +   gcdraw
+SEQ,INCEND
+KEEP,GSECTI
*
+SEQ,INCBEG
     +   gsecti
+SEQ,INCEND
+KEEP,GCGOBJ
*
+SEQ,INCBEG
     +   gcgobj
+SEQ,INCEND
+KEEP,GCSCAN
*
+SEQ,INCBEG
     +   gcscan
+SEQ,INCEND
+KEEP,GCSCAL
*
+SEQ,INCBEG
     +   gcscal
+SEQ,INCEND
+KEEP,GCPARA
*
+SEQ,INCBEG
     +   gcpara
+SEQ,INCEND
+KEEP,GCJUMP
*
+SEQ,INCBEG
     +   gcjump
+SEQ,INCEND
+KEEP,GCOMIS
*
+SEQ,INCBEG
     +   gcomis
+SEQ,INCEND
+KEEP,GCXLUN
*
+SEQ,INCBEG
     +   gcxlun
+SEQ,INCEND
+KEEP,GCMUTR
*
+SEQ,INCBEG
     +   gcmutr
+SEQ,INCEND
+KEEP,GCHILN
*
+SEQ,INCBEG
     +   gchiln
+SEQ,INCEND
+KEEP,GCSPEE
*
+SEQ,INCBEG
     +   gcspee
+SEQ,INCEND
+KEEP, LUJETS
*
+SEQ,INCBEG
     +    lujets
+SEQ,INCEND
+KEEP, LUDAT1
*
+SEQ,INCBEG
     +    ludat1
+SEQ,INCEND
+KEEP, LUDAT3
*
+SEQ,INCBEG
     +    ludat3
+SEQ,INCEND
+KEEP,GCLUND
*
+SEQ,INCBEG
     +   gclund
+SEQ,INCEND
+KEEP,PAWC
*
+SEQ,INCBEG
     +   pawc
+SEQ,INCEND
+KEEP,GCPMXZ
*
+SEQ,INCBEG
     +   gcpmxz
+SEQ,INCEND
+KEEP,GC10EV
*
+SEQ,INCBEG
     +   gc10ev
+SEQ,INCEND
+KEEP,GCSHPT
*
+SEQ,INCBEG
     +   gcshpt
+SEQ,INCEND
+KEEP,GCPHPR
*
+SEQ,INCBEG
     +   gcphpr
+SEQ,INCEND
+KEEP,GCPHNR
*
+SEQ,INCBEG
     +   gcphnr
+SEQ,INCEND
+KEEP,GCPHRD
*
+SEQ,INCBEG
     +   gcphrd
+SEQ,INCEND
+KEEP,GCPHXS
*
+SEQ,INCBEG
     +   gcphxs
+SEQ,INCEND
+KEEP,GCPOTM
*
+SEQ,INCBEG
     +   gcpotm
+SEQ,INCEND
+PATCH,GTINCL,IF=MINCL
+DECK,GCBANK
*CMZ :  3.21/02 29/03/94  15.41.18  by  S.Giani
*-- Author :
*
+SEQ,GCBANK
+DECK,GCCURS
*CMZ :  3.21/02 29/03/94  15.41.18  by  S.Giani
*-- Author :
*
+SEQ,GCCURS
+DECK,GCCUTS
*CMZ :  3.21/02 29/03/94  15.41.18  by  S.Giani
*-- Author :
*
+SEQ,GCCUTS
+DECK,GCDRAW
*CMZ :  3.21/02 29/03/94  15.41.18  by  S.Giani
*-- Author :
*
+SEQ,GCDRAW
+DECK,GCFLAG
*CMZ :  3.21/02 29/03/94  15.41.18  by  S.Giani
*-- Author :
*
+SEQ,GCFLAG
+DECK,GCGOBJ
*CMZ :  3.21/02 29/03/94  15.41.18  by  S.Giani
*-- Author :
*
+SEQ,GCGOBJ
+DECK,GCHIL2.
*CMZ :  3.21/02 29/03/94  15.41.18  by  S.Giani
*-- Author :
*
+SEQ,GCHIL2.
+DECK,GCHILN.
*CMZ :  3.21/02 29/03/94  15.41.18  by  S.Giani
*-- Author :
*
+SEQ,GCHILN.
+DECK,GCJLOC
*CMZ :  3.21/02 29/03/94  15.41.18  by  S.Giani
*-- Author :
*
+SEQ,GCJLOC
+DECK,GCJUMP
*CMZ :  3.21/02 29/03/94  15.41.18  by  S.Giani
*-- Author :
*
+SEQ,GCJUMP
+DECK,GCKINE
*CMZ :  3.21/02 29/03/94  15.41.18  by  S.Giani
*-- Author :
*
+SEQ,GCKINE
+DECK,GCKING
*CMZ :  3.21/02 29/03/94  15.41.18  by  S.Giani
*-- Author :
*
+SEQ,GCKING
+DECK,GCKMAX
*CMZ :  3.21/02 29/03/94  15.41.18  by  S.Giani
*-- Author :
*
+SEQ,GCKMAX
+DECK,GCLINK
*CMZ :  3.21/02 29/03/94  15.41.18  by  S.Giani
*-- Author :
*
+SEQ,GCLINK
+DECK,GCLIST
*CMZ :  3.21/02 29/03/94  15.41.18  by  S.Giani
*-- Author :
*
+SEQ,GCLIST
+DECK,GCLUND
*CMZ :  3.21/02 29/03/94  15.41.18  by  S.Giani
*-- Author :
*
+SEQ,GCLUND
+DECK,GCMATE
*CMZ :  3.21/02 29/03/94  15.41.18  by  S.Giani
*-- Author :
*
+SEQ,GCMATE
+DECK,GCMULO
*CMZ :  3.21/02 29/03/94  15.41.18  by  S.Giani
*-- Author :
*
+SEQ,GCMULO
+DECK,GCMUTR
*CMZ :  3.21/02 29/03/94  15.41.18  by  S.Giani
*-- Author :
*
+SEQ,GCMUTR
+DECK,GCMZFO
*CMZ :  3.21/02 29/03/94  15.41.18  by  S.Giani
*-- Author :
*
+SEQ,GCMZFO
+DECK,GCNUM
*CMZ :  3.21/02 29/03/94  15.41.18  by  S.Giani
*-- Author :
*
+SEQ,GCNUM
+DECK,GCOMIS
*CMZ :  3.21/02 29/03/94  15.41.18  by  S.Giani
*-- Author :
*
+SEQ,GCOMIS
+DECK,GCONSP
*CMZ :  3.21/02 29/03/94  15.41.18  by  S.Giani
*-- Author :
*
+SEQ,GCONSP
+DECK,GCONST.
*CMZ :  3.21/02 29/03/94  15.41.18  by  S.Giani
*-- Author :
*
+SEQ,GCONST.
+DECK,GCOPTI
*CMZ :  3.21/02 29/03/94  15.41.18  by  S.Giani
*-- Author :
*
+SEQ,GCOPTI
+DECK,GCPARA.
*CMZ :  3.21/02 29/03/94  15.41.18  by  S.Giani
*-- Author :
*
+SEQ,GCPARA.
+DECK,GCPARM.
*CMZ :  3.21/02 29/03/94  15.41.18  by  S.Giani
*-- Author :
*
+SEQ,GCPARM.
+DECK,GCPHNR.
*CMZ :  3.21/02 29/03/94  15.41.18  by  S.Giani
*-- Author :
*
+SEQ,GCPHNR.
+DECK,GCPHPR.
*CMZ :  3.21/02 29/03/94  15.41.18  by  S.Giani
*-- Author :
*
+SEQ,GCPHPR.
+DECK,GCPHRD.
*CMZ :  3.21/02 29/03/94  15.41.18  by  S.Giani
*-- Author :
*
+SEQ,GCPHRD.
+DECK,GCPHXS.
*CMZ :  3.21/02 29/03/94  15.41.18  by  S.Giani
*-- Author :
*
+SEQ,GCPHXS.
+DECK,GCPHYS
*CMZ :  3.21/02 29/03/94  15.41.18  by  S.Giani
*-- Author :
*
+SEQ,GCPHYS
+DECK,GCPMXZ.
*CMZ :  3.21/02 29/03/94  15.41.18  by  S.Giani
*-- Author :
*
+SEQ,GCPMXZ.
+DECK,GCPOLY
*CMZ :  3.21/02 29/03/94  15.41.18  by  S.Giani
*-- Author :
*
+SEQ,GCPOLY
+DECK,GCPOTM.
*CMZ :  3.21/02 29/03/94  15.41.18  by  S.Giani
*-- Author :
*
+SEQ,GCPOTM.
+DECK,GCPUSH
*CMZ :  3.21/02 29/03/94  15.41.18  by  S.Giani
*-- Author :
*
+SEQ,GCPUSH
+DECK,GCRZ
*CMZ :  3.21/02 29/03/94  15.41.18  by  S.Giani
*-- Author :
*
+SEQ,GCRZ
+DECK,GCSCAL.
*CMZ :  3.21/02 29/03/94  15.41.18  by  S.Giani
*-- Author :
*
+SEQ,GCSCAL.
+DECK,GCSCAN
*CMZ :  3.21/02 29/03/94  15.41.18  by  S.Giani
*-- Author :
*
+SEQ,GCSCAN
+DECK,GCSETS.
*CMZ :  3.21/02 29/03/94  15.41.18  by  S.Giani
*-- Author :
*
+SEQ,GCSETS.
+DECK,GCSHNO.
*CMZ :  3.21/02 29/03/94  15.41.18  by  S.Giani
*-- Author :
*
+SEQ,GCSHNO.
+DECK,GCSHPT.
*CMZ :  3.21/02 29/03/94  15.41.18  by  S.Giani
*-- Author :
*
+SEQ,GCSHPT.
+DECK,GCSPEE.
*CMZ :  3.21/02 29/03/94  15.41.18  by  S.Giani
*-- Author :
*
+SEQ,GCSPEE.
+DECK,GCSTAK.
*CMZ :  3.21/02 29/03/94  15.41.18  by  S.Giani
*-- Author :
*
+SEQ,GCSTAK.
+DECK,GCTIME
*CMZ :  3.21/02 29/03/94  15.41.18  by  S.Giani
*-- Author :
*
+SEQ,GCTIME
+DECK,GCTMED
*CMZ :  3.21/02 29/03/94  15.41.18  by  S.Giani
*-- Author :
*
+SEQ,GCTMED
+DECK,GCTRAK
*CMZ :  3.21/02 29/03/94  15.41.18  by  S.Giani
*-- Author :
*
+SEQ,GCTRAK
+DECK,GCUNIT
*CMZ :  3.21/02 29/03/94  15.41.18  by  S.Giani
*-- Author :
*
+SEQ,GCUNIT
+DECK,GCURSB
*CMZ :  3.21/02 29/03/94  15.41.18  by  S.Giani
*-- Author :
*
+SEQ,GCURSB
+DECK,GCVOL1
*CMZ :  3.21/02 29/03/94  15.41.18  by  S.Giani
*-- Author :
*
+SEQ,GCVOL1
+DECK,GCVOL2
*CMZ :  3.21/02 29/03/94  15.41.18  by  S.Giani
*-- Author :
*
+SEQ,GCVOL2
+DECK,GCVOLU
*CMZ :  3.21/02 29/03/94  15.41.18  by  S.Giani
*-- Author :
*
+SEQ,GCVOLU
+DECK,GCXLUN
*CMZ :  3.21/02 29/03/94  15.41.18  by  S.Giani
*-- Author :
*
+SEQ,GCXLUN
+DECK,GSECTI
*CMZ :  3.21/02 29/03/94  15.41.18  by  S.Giani
*-- Author :
*
+SEQ,GSECTI
+DECK, LUDAT1
*CMZ :  3.21/02 29/03/94  15.41.18  by  S.Giani
*-- Author :
*
+SEQ, LUDAT1
+DECK, LUDAT3
*CMZ :  3.21/02 29/03/94  15.41.18  by  S.Giani
*-- Author :
*
+SEQ, LUDAT3
+DECK, LUJETS
*CMZ :  3.21/02 29/03/94  15.41.18  by  S.Giani
*-- Author :
*
+SEQ, LUJETS
+DECK,PAWC
*CMZ :  3.21/02 29/03/94  15.41.18  by  S.Giani
*-- Author :
*
+SEQ,PAWC
*-- Author :
+PATCH,PAMEND.
*