CERN Program Library Long Writeup W5013 - CERNLIB ...

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The divisions start at the user specified coordinate value and extend to the end of the volume. The range from this offset to the upper coordinate limit of the mother volume will be divided into the supplied number of cells. In the case of φ division of a complete tube or cone, the whole 360 degrees will be divided into the user-supplied number of slices no matter what the origin is. Specifying an origin for the division, in this case, just moves the division boundaries. This can be useful to avoid a rotation. In all other cases the search routines will assume that a point is in the mother if the coordinate value is less than the value of the supplied offset. CALL GSDVT2 (CHNAME,CHMOTH,STEP,IAXIS,C0,NUMED,NDVMX) Divide a volume along a direction with a given step starting from an offset. CHNAME CHMOTH STEP IAXIS C0 NUMED NDVMX (CHARACTER*4) a unique name for the volume to be generated by subdivision of the mother volume; (CHARACTER*4) volume that has to be subdivided; (REAL) size of the divisions – this value can be in centimeters or degrees according to the value of IAXIS; (INTEGER) axis of the division; (REAL) offset where division should start – this value can be in centimeters or degrees according to the value of IAXIS; (INTEGER) medium number of the divisions – this can be different from the one of the mother, as the division cells may leave a portion of the mother undivided (see below) – if NUMED ≤ 0 the medium of the mother; (INTEGER) expected (maximum) number of divisions – if ≤ 0 or > 255, 255 is assumed. The division start at the user-specified coordinate value and extend to the end of the volume. The range from origin to upper coordinate limit of the mother volume is divided in sections of the user supplied step. If the step is such that the range of the mother cannot be filled with cells, the largest possible number of cells is created. The excess space up to the end of the mother volume will be assumed to belong to the mother. In the case of φ division of a complete tube or cone, the whole 360 degrees will be filled with slices, no matter what the origin is. Specifying an origin for the division, in this case, just moves the division boundaries. This can be useful to avoid a rotation. In all other cases the search routines will assume a point is just in the mother if the coordinate value is less than the value of the user supplied origin. GEOM150 – 2 130
Geant 3.16 GEANT User’s Guide GEOM199 Origin : R.Brun,F.Bruyant,A.McPherson Submitted: 01.11.83 Revision : Revised: 18.11.93 Documentation : 1 The data structure JVOLUM and JGPAR The volume data structure – JVOLUM The meaning of the variables in the data structure JVOLUM shown in fig. 29 is the following: ISEARC ISHAPE NIN NMED NPAR NATT PAR IAT IAXIS IVO NDIV C0 STEP NR IROT X,Y,Z KONLY search flag [GEOM400], [GEOM410]: =0 volume positioning order or ordering by GSNEXT/GSNEAR; 0 user ordering GSUNEA/GUNEAR; system shape number (see [GEOM050]; number of volumes contained in the mother volume – if negative the volume is divided; medium number for the volume; number of shape parameters; number of attributes; array of shape parameters; array of attributes; direction of the division (see [GEOM130]); system volume number; number of divisions (-NDVMX, if computed dynamically, see [GEOM140]); coordinate value at which the division starts; coordinate step for the division; user copy number; rotation matrix number defining the orientation of the volume with respect to the mother reference system; position of the volume with respect to the mother reference system; ONLY/MANY flag, see [GEOM110] for more information; 131 GEOM199 – 1
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CERN Program Library Long Writeup W
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Chapter 1: Catalog of Geant section
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IOPA500 KINE001 KINE100 KINE199 KIN
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Geant 3.21 GEANT User’s Guide AAA
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The routines made available for GEA
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outines, then you can type the foll
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AAAA Bibliography [1] H.J. Klein an
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2 Event simulation framework The fr
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• after each tracking step along
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GUDIGI GUOUT GTRIGC UGLAST GLAST GU
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Particles JPART Materials JMATE/JTM
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3 Summary of GEANT data records 3.1
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3.4 User applications KEY N I VAR S
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Geant 3.16 GEANT User’s Guide BAS
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SUBROUTINE UGEOM + (’TGT ’,2,
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LQ(JHEAD-1) user link IQ(JHEAD+1) I
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VALUE = GARNDM (DUMMY) DUMMY (REAL)
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Geant 3.16 GEANT User’s Guide CON
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1 Energy binning IDECAD Bin number
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Particle No. Mass(GeV) Charge Life
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¯Ω + ¯Ξ 0 π + 23.60 ¯ΛK + 67
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Geant 3.16 GEANT User’s Guide DRA
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The main drawing routines are: GDRA
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Geant 3.21 GEANT User’s Guide DRA
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Another feature which is available
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z y x C CHARACTER*4 CHNAMS(5) INTEG
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Page 143 and 144: Dynamic ordering The list of neighb
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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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