CERN Program Library Long Writeup W5013 - CERNLIB ...

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He ions in Ar (energies in keV) MonteCarlo data t (cm) ∆E FWHM FWHM 0.5 444 38 ∼40 1.0 913 53 ∼60 2.0 1940 78 ∼80 Table 1.13: Comparison of the measured and calculated and FWHM for 1.4 MeV/A He ions in gas. 3 Comparison with data 3.1 Mean energy loss and range A test has been made against the distributions reported in [94] for He ions at 1 and 10 MeV/A and for O and Pb ions at 1, 10 and 100 MeV/A in carbon and the results were found to be correct within 5% both for the energy loss and the range. Figure 44: Stopping powers in Lead Another comparison has been made with the tables of [95] for 10 MeV/A ions in lead, with the results shown in table 2. Another comparison with the same tables is shown in Figs. 43 and 44. A comparison with the tables in [83, 93] for T/A < 1 MeV/A gives an error on (dE/dx) ≤ 10 − 20%. 3.2 Comparison of FWHM A comparison has been made with low energy data (0.3 ≤ T/A ≤ 2.5 MeV/A) in very thin absorbers (1,7 µm, 0.4 µm). Data are taken from the tables in [96] for energy loss of O ions in Al, and the results are reported in table 2. The quoted experimental error for these data is 1% statistical + 5% systematic for 417 µg cm −2 data and 2% statistical + 10% systematic for 110 µg cm −2 data. Plots of energy deposition distributions of 1.4 MeV/A lead and helium ions in gases can be found in [97]. From these we have measured the FWHM and compared them with the ones given by the MonteCarlo. The PHYS431 – 4 306
esults can be seen in table 2 and 3.1. It should be noted that the absorber thickness of, for example, Ar compares with that of the preceding case (0.2 cm Ar = 356 µg cm −2 and 1.2 cm Ar = 2136 µg cm −2 ). Similar comparison has been made for C ions of energies 17.1 and 39.4 MeV in isobuthane [98] and the agreement between data and GEANT for FWHM is within 30%. 307 PHYS431 – 5
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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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Another feature which is available
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z y x C CHARACTER*4 CHNAMS(5) INTEG
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CALL GDRAWC(’OPAL’,2,0.,10.,10.
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CALL GSATT(’HB’,’FILL’,3) C
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CALL GDRAW(’CAVE’,40.,40.,0.,10
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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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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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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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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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• Case dielectric → metal. The
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| ⃗ k| = | ⃗ k ′′ | = k =
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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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YMED R “ Center Y coordinate ”
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HIDE is ON, the detector can be exp
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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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YES NO 6.7 SCONS name numed inrdw o
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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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PPCUTM R “Cut for e+e- pairs by m
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This common contains the threshold
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ITR3D track being scanned (used tog
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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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GFKINE KINE001, KINE100, KINE199 GF
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GPSTAT GEOM700 GPTMED CONS001, CONS
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