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Geant 3.16 GEANT User’s Guide GEOM140 Origin : F.Bruyant, A.McPherson, M.Maire Submitted: 17.12.83 Revision : Revised: 18.11.93 Documentation : Division of a Volume into cells of a given size This routine creates new volumes from a mother by divisions of a given step. CALL GSDVT (CHNAME,CHMOTH,STEP,IAXIS,NUMED,NDVMX) CHNAME CHMOTH STEP IAXIS 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. (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 full range of the mother will be divided in sections of the user supplied step. If the step is such that the mother cannot be divided exactly, the largest possible number of divisions will be generated, the excess space will be equally divided between each end of the range of the mother. These extra spaces will be assumed to belong to the mother. For more information on the division in general, see [GEOM130]. 128 GEOM140 – 1
Geant 3.16 GEANT User’s Guide GEOM150 Origin : R.Brun, F.Bruyant, A.McPherson Submitted: 17.12.83 Revision : Revised: 18.11.93 Documentation : Division of a volume - general case CALL GSDVX (CHNAME,CHMOTH,NDIV,IAXIS,STEP,C0,NUMED,NDVMAX) Divide a volume in a given number of parts along a direction, with a given step starting from an offset. CHNAME CHMOTH NDIV IAXIS STEP 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; (INTEGER) number of divisions into which the mother volume is to be divided; (INTEGER) axis of the division. (REAL) size of the divisions – this value can be in centimeters or degrees according to the value of IAXIS; (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. For more information on the division mechanism, see [GEOM130] and [GEOM140]. For the moment either NDIV or STEP must be set negative or 0, so that they will be computed from the CHMOTH’s size. The case with both NDIV and STEP positive is not coded yet. It would permit leaving different gaps at both ends of the CHMOTH. Provisionally the code consists of a call to either GSDVN2 or GSDVT2. CALL GSDVN2 (CHNAME,CHMOTH,NDIV,IAXIS,C0,NUMED) Divide a volume in a given number of parts along a direction, starting from an offset. CHNAME CHMOTH NDIV IAXIS C0 NUMED (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; (INTEGER) number of divisions into which the mother volume is to be divided; (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; 129 GEOM150 – 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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The main drawing routines are: GDRA
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Another feature which is available
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0 if only IER] structures read in o
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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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Below are listed the data record ke
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Computation of total crosssection o
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1= generation of secondaries enable
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DEEMAX The formula used by GEANT is
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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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2 Method If the energy of the radia
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• Case dielectric → metal. The
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| ⃗ k| = | ⃗ k ′′ | = k =
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CALL GMOLIE (OMEGA,BETA2,DIN*) OMEG
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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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VALUE = GBRSGM (Z,T,BCUT) Z T BCUT
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[CONS]). Usually, this is done toge
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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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Clicking then on the right button o
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HIDE is ON, the detector can be exp
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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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CHUSET C “User set identifier”
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CALL GDCOL(-abs(icol)) 4.12 LWID lw
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Print matrixes’ specifications. 5
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This common contains the threshold
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