CERN Program Library Long Writeup W5013 - CERNLIB ...

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2 Debug of events The development of an event can be followed via the routine: CALL GDEBUG which operates under the control of the ISWIT array. It is the user responsibility to call this routine from GUSTEP. If the DEBUG flag is active, the routine will perform as follows: ISWIT(1) ISWIT(2) ISWIT(3) 2 the content of the temporary stack for secondaries in the common /GCKING/ is printed; 1 the current point of the track is stored in the JDXYZ bank via the routine GSXYZ; 2 the current information on the track is printed via the routine GPCXYZ; 3 the current step is drawn via the routine GDCXYZ; 4 the current point of the track is stored in the JDXYZ bank via the routine GSXYZ. When the particle stops the track is drawn via the routine GDTRAK and the space occupied by the track in the structure JDXYZ released; 1 the current point of the track is stored in the JDXYZ bank via the routine GSXYZ. BASE400 – 2 40
Geant 3.16 GEANT User’s Guide BASE410 Origin : R.Brun Submitted: 08.08.87 Revision : Revised: 08.11.93 Documentation : Utility Routines CALL GLOOK (CHNAME,IVECT,N,ILOOK*) CHNAME IVECT N ILOOK (CHARACTER*4) variable containing the name to be searched for in IVECT; (INTEGER) array containing the ASCII code of the names among which NAME is searched. The names are stored 4 characters per word; (INTEGER) number of items in IVECT; (INTEGER) position in IVECT where NAME has been found, 0 if not found. This routine is very useful when searching for a string stored in a ZEBRA bank. For instance to find the position of the ’CRYS’ volume in the volume bank, the following piece of code could be written: +SEQ,GCBANK. +SEQ,GCNUM. . . . CALL GLOOK(’CRYS’,IQ(JVOLUM+1),NVOLUM,IVO) IF(IVO.GT.0) THEN JVO = LQ(JVOLUM-IVO) ELSE JVO = 0 ENDIF JVO, if different from 0, is the pointer to the data bank containing the information relative to the volume ’CRYS’. CALL GEVKEV (EGEV,ENERU*,CHUNIT*) EGEV ENERU CHUNIT (REAL) input, energy in GeV; (REAL) output, energy in the new unit; (CHARACTER*4) unit in which the energy has been converted. This subroutine converts the input energy in GeV to a unit in which 1 ≤ E ≤ 999. CHUNIT contains the new unit. The following piece of code illustrates the use of GEVKEV: +SEQ,GCTRAK. CHARACTER*4 CHUNIT . . . CALL GEVKEV(DESTEP, DE, CHUNIT) WRITE(6,10000) DE, CHUNIT 10000 FORMAT(’ The energy loss in this step is ’,F7.2,A) 41 BASE410 – 1
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Page 3 and 4: Chapter 1: Catalog of Geant section
Page 5 and 6: IOPA500 KINE001 KINE100 KINE199 KIN
Page 7 and 8: Geant 3.21 GEANT User’s Guide AAA
Page 9 and 10: The routines made available for GEA
Page 11 and 12: outines, then you can type the foll
Page 13 and 14: AAAA Bibliography [1] H.J. Klein an
Page 15 and 16: 2 Event simulation framework The fr
Page 17 and 18: • after each tracking step along
Page 19 and 20: GUDIGI GUOUT GTRIGC UGLAST GLAST GU
Page 21 and 22: Particles JPART Materials JMATE/JTM
Page 23 and 24: 3 Summary of GEANT data records 3.1
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Page 45 and 46: VALUE = GARNDM (DUMMY) DUMMY (REAL)
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Figure 16: Example of use of GDSPEC
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CALL GDOPEN(3) CALL GDRAWC(’ALEF
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6 NKVIEW IVIEW JDRAW NKVIEW JV = IB
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SHAD EDGE when HIDE is ON, selects
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x1xxxx 1xxxxx add the text EVENT NR
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DRAW Bibliography [1] R.Bock et al.
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2 Volumes with contents A volume ca
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The user can position a volume thro
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0 1 2 1 0 1 0 1 2 3 4 5 6 7 Figure
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2 Divisions along arbitrary axis As
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9.BL2 half-length along x of the si
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1.DZ half-length along the z axis;
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ECAL BOX specifications 18/11/93 EC
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ECAL SPHE specifications 18/11/93 E
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Geant 3.16 GEANT User’s Guide GEO
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• if the CHONLY flag is set to MA
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y y x x y y y y z z x x z z y y x x
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CAVE PAR1 specifications 20/10/94 y
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Dynamic ordering The list of neighb
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are represented by their values. A
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Where • @302 is the block number
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GEOM Bibliography [1] French Standa
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Geant 3.16 GEANT User’s Guide HIT
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ITRA NUMBV HITS NHITS (INTEGER) is
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HITS Bibliography 175 HITS510 - 3
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Geant 3.16 GEANT User’s Guide IOP
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0 if only IER] structures read in o
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Geant 3.16 GEANT User’s Guide IOP
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IOPA Bibliography [1] J.Zoll. ZEBRA
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Geant 3.16 GEANT User’s Guide KIN
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NTRACK ITRA JKINE NTRACK JK 1 2 3 4
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Geant 3.16 GEANT User’s Guide PHY
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Below are listed the data record ke
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Computation of total crosssection o
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7. Update the number of interaction
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1= generation of secondaries enable
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DEEMAX The formula used by GEANT is
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The second problem has been solved
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GPHYSI Initialisation of physics pr
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• the mean number of tries is not
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as function of the variable u = Eθ
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GEANT 3.16 GEANT User’s Guide PHY
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where N Z(Z i ) A(A i ) ρ σ Avoga
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Word # PHFN bank (data area, contin
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2 Method If the energy of the radia
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The Auger or Coster-Kronig transiti
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where: n number of energy bins q i
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• Case dielectric → metal. The
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| ⃗ k| = | ⃗ k ′′ | = k =
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Case dielectric → metal In this c
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5 Processes involving Čerenkov pho
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Much of the difficulty in approxima
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CALL GMOLIE (OMEGA,BETA2,DIN*) OMEG
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where λ 0 = ¯h/p Compton waveleng
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2.3 Sampling of the distribution fu
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X 0 is the radiation length. From (
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where we have set Θ=θ/χ α . To
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The variable DCUTE in common /GCCUT
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2.2 Total cross-sections The integr
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For the other charged particles the
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POTI POTIL (REAL) average ionisatio
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where φ(λ) = 1 ∫ c+i∞ exp (u
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Counts 900 800 Landau 700 40 600 20
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Fast simulation for n 3 ≥ 16 If t
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ξ/E Max (hereafter κ) relative im
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ln(∫ σ γ dE/norm.factor) -4 -6
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VALUE = GBFSIG (T,C) GBFSIG calcula
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∆σ σ = { 12 − 15% for T ≤ 1
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T(MeV) C Pb ∆El 0 ∆E l ∆σ l
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1. sample x from 1 1 ln 1 x c x set
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E bind , eV 10 5 10 20 30 40 50 60
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eV). At present the values recommen
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calculated dE dx − dE measured dx
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Figure 43: Stopping powers in Carbo
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esults can be seen in table 2 and 3
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VALUE = GBRSGM (Z,T,BCUT) Z T BCUT
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The functions F i (Z,X,Y) (i = σ,
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where, (a − 1) 1 f(ν) = ( ) 1 ν
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where: Γ = kα 2π [ ɛ = W E 1 1
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NLM DENS CORR IPART (INTEGER) numbe
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Hydrogen (bound) Sodium Copper Hydr
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[25] M. Gavrila. Relativistic l-she
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[78] R.W.Williams. Fundamental Form
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[CONS]). Usually, this is done toge
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Geant 3.16 GEANT User’s Guide TRA
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VECT,SNEXT,SAFETY Compute distance
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VECT,SNEXT,SAFETY Compute distance
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VECT,SNEXT,SAFETY Compute SFIELD,SM
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SUBROUTINE GUSTEP +SEQ,GCKING,GCVOL
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CALL GRKUTA (CHARGE,STEP,VECT,VOUT*
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Geant 3.16 GEANT User’s Guide XIN
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Clicking then on the right button o
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YMED R “ Center Y coordinate ”
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HIDE is ON, the detector can be exp
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e drawn. NAMNUM contain the arrays
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following levels (red arrows) and o
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Draw a polyline of ’npoint’ poi
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a dynamical 3-D analysis of the sim
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1. position the cursor at (uz0,vz0)
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CHUSET C “User set identifier”
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Set current attribute. 4.8 SSETVA [
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CALL GDCOL(-abs(icol)) 4.12 LWID lw
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5 GEANT/GEOMETRY Geometry commands.
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Print matrixes’ specifications. 5
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6 GEANT/CREATE It creates volumes o
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YES NO 6.7 SCONS name numed inrdw o
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7 GEANT/CONTROL Control commands. 7
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To change lout in /GCUNIT/ Note: un
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IPART I “Particle number” NAPAR
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8.5 CDIR [ chpath chopt ] CHPATH C
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9 GEANT/FZ ZEBRA/FZ commands 9.1 FZ
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Check the structure of one or more
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FACTL R “Scale factor for SL” D
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12 GEANT/PHYSICS Commands to set ph
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Possible IDRAY values are: 0 1 2 To
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12.14 PAIR [ ipair ] IPAIR C “Fla
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PPCUTM R “Cut for e+e- pairs by m
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LGET_15 C “user word” LGET_16 C
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13.6 GEOM [ lgeom˙1 lgeom˙2 lgeom
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LSTAT_7 C “user word” LSTAT_8 C
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XINT Bibliography [1] R.Brun and P.
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This common contains the threshold
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ITR3D track being scanned (used tog
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NCLAS1 NCLAS2 NCLAS3 IHOLE CGXMIN C
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* PARAMETER (MAXJMP=30) COMMON/GCJU
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GYMAX GZMIN GZMAX GXXXX GYYYY GZZZZ
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DENS density of current material in
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RADDEG radiants to degrees conversi
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PCUTNE parameterisation threshold f
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SMULS SOMULS STMULS DPHYS3 ILABS SL
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NTETA TETMIN TETMAX MODTET number o
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S2 S3 SS1 SS2 SS3 LEP IPORLI ISUBLI
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CFIELD constant for field step eval
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NEXT 1 particle has reached the bou
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C COMMON/GCVOL2/NLEVE2,NAMES2(15),N
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STEP PLIN PLOG BE2 PLASM TRNSMA BOS
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C ESHELL - Shells potentials in eV
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Geant 3.11 GEANT User’s Guide ZZZ
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GFKINE KINE001, KINE100, KINE199 GF
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GPSTAT GEOM700 GPTMED CONS001, CONS
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ZZZZ Bibliography [1] T.Sjöstrand
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CDRSGA, 297 CGMULO, 221 CHANGEWK, 3
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GEANT/DRAWING/KHITS, 372 GEANT/DRAW
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GPART, 13, 46, 61, 293 GPCXYZ, 40,
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PATCHY, 278 PCUTS, 399 PDIGI, 389 P
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