From: Îäìõ (wu_zhen01@mails.tsinghua.edu.cn)
Date: Sat Dec 13 2003 - 10:24:39 CET
Dear all,
I have a compound target by tungsten and gold. It is hitted by a 9 MeV electron beam. I want to get the fluence in the tungsten, the gold and 1 meter away ahead of the target. I use usrtrack to get the energy spectrum of fluence, and use usrbin to get total fluence in the correspond point. In my result. the fluence got by usrtrack in the gold and 1 meter away ahead of the target is zero, but the total fluence got by usrbin is not zero. at the same time, the fluence in the tungsten got by usrtrack and usrbin are consistent. I dont know where the error is. please help me!
Thanks a lot.
Zhen Wu
12/13/2003
The following is my input file and my result:
1. input file:
TITLE
Testing fluka: Beam of electron through compound target
* by Zhen Wu 12/10/03
*---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8
DEFAULTS NEW-DEFA
*---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----*
* Electron, 9 MeV Ek, circle 0.075 cm radius,
* beam starts at (0,0,191.0) toward +Z axis
BEAM -9.0E-3 0.0 0.0 0.075 0.0 -1.0ELECTRON
BEAMPOS 0.0 0.0 18.5 0.0 0.0
*---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----*
GEOBEGIN 0.0 COMBINAT
outer rectangular and tungsten+gold target and shielding
*
RPP 1 -20000.0 20000.0 -20000.0 20000.0 -20000.0 20000.0
RPP 2 -15000.0 15000.0 -15000.0 15000.0 -15000.0 15000.0
RPP 3 -10000.0 10000.0 -10000.0 10000.0 -10000.0 10000.0
* Compound Target
* W
RCC 4 0.0 0.0 18.85 0.0 0.0 19.1
0.5
* Au
RCC 5 0.0 0.0 19.1 0.0 0.0 19.2
0.5
*detector
RPP 6 -5.0 5.0 -5.0 5.0 124.0 114.0
END
*-reg-----or-----or-----or-----or-----or-----or-----or-----or-----or-----
BL1 4 +1 -2
VA2 4 +2 -4 -5 -6
TU3 4 +4
AU4 4 +5
*-reg-----or-----or-----or-----or-----or-----or-----or-----or-----or-----
VA5 4 +6
END
GEOEND
*---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----*
MATERIAL 79.0 196.967 19.32 15.0 0.0 0.0GOLD
MATERIAL 82.0 207.2 11.35 17.0 0.0 0.0LEAD
MATERIAL 74.0 184.0 19.3 23.0 0.0 0.0TUNGSTEN
*---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----*
ASSIGNMA 1.0 1.0
ASSIGNMA 2.0 2.0
ASSIGNMA 23.0 3.0
ASSIGNMA 15.0 4.0
ASSIGNMA 2.0 5.0
*---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----*
PHYSICS 2.0 EVAPORAT
* all photonuclear phenomena are activated in all materials
PHOTONUC 1111. 15.0
PHOTONUC 1111. 17.0
PHOTONUC 1111. 23.0
* reduce inelastic interaction length of photons by 0.02 for all materials
LAM-BIAS 0.0 0.02 0.0 7.0
* non-analog transport of thermal neutrons in all regions
* LOW-BIAS 73. 72. 0.85 1.0 6.0
EMFFIX 23.0 0.05
EMFFIX 15.0 0.05
EMFFIX 17.0 0.05
EMFCUT -5.0E-3 1.0E-6 0.0 1.0 8.0 1.0
*---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----*
OUTLEVEL 1.0 7.0
*---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----*
* neutron fluence in W target
USRTRACK -1. 8. 41. 3. 1. 72.neutron
USRTRACK 0.0196 1.E-14 &
*---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----*
* neutron fluence in Au target
USRTRACK -1. 8. 41. 4. 1. 72.neutron
USRTRACK 0.0196 1.E-14 &
*---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----*
* neutron total fluence in 0 degree,1 meter
USRTRACK -1. 8. 41. 5. 1. 72.neutron
USRTRACK 0.0196 1.E-14 &
*---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----*
* neutron total fluence in 0 degree,1 meter
USRBIN 10. 8.0 61. 5.0 5.0 124.0neutron
USRBIN -5.0 -5.0 114.0 1.0 1.0 1.0 &
*---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----*
* neutron total fluence in W
USRBIN 11. 8.0 61. 0.5 0.0 19.1neutron
USRBIN 0.0 0.0 18.85 1.0 1.0 5.0 &
*---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----*
* neutron total fluence in Au
USRBIN 11. 8.0 61. 0.5 0.0 19.2neutron
USRBIN 0.0 0.0 19.1 1.0 1.0 2.0 &
RANDOMIZ 1.0
START 1.0E+7
STOP
2. result
usertrack result:
1
Track n. 1 "neutron " , generalized particle n. 8, region n. 3
detector volume: 1.0000E+00 cm**3
low energy neutrons scored from group 1 to group 72
logar. energy binning from 1.9600E-02 to 1.9600E-02 GeV, 0 bins (ratio : 1.4816E+00)
Data follow in a vector A(ie), format (1(5x,1p,10(1x,e11.4)))
Low energy neutron data from group 1 to group 72 follow in a vector A(ig), format (1(5x,1p,10(1x,e11.4)))
0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00
0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00
0.0000E+00 7.7668E-06 1.6520E-05 1.2455E-04 1.9992E-04 2.2520E-04 2.7827E-04 5.8891E-04 8.0825E-04 1.1837E-03
2.0049E-03 2.2987E-03 3.3557E-03 4.5607E-03 4.8638E-03 6.7612E-03 8.1212E-03 7.7079E-03 8.1627E-03 9.6815E-03
7.2599E-03 8.0053E-03 9.0499E-03 9.6502E-03 8.3322E-03 8.4891E-03 7.1115E-03 7.0571E-03 1.2297E-02 5.3844E-03
3.0171E-03 7.3935E-03 3.9022E-03 1.9973E-02 2.1038E-02 5.8089E-03 2.0952E-02 0.0000E+00 0.0000E+00 0.0000E+00
0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00
0.0000E+00 0.0000E+00
1
Track n. 2 "neutron " , generalized particle n. 8, region n. 4
detector volume: 1.0000E+00 cm**3
low energy neutrons scored from group 1 to group 72
logar. energy binning from 1.9600E-02 to 1.9600E-02 GeV, 0 bins (ratio : 1.4816E+00)
Data follow in a vector A(ie), format (1(5x,1p,10(1x,e11.4)))
Low energy neutron data from group 1 to group 72 follow in a vector A(ig), format (1(5x,1p,10(1x,e11.4)))
0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00
0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00
0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00
0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00
0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00
0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00
0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00
0.0000E+00 0.0000E+00
1
Track n. 3 "neutron " , generalized particle n. 8, region n. 5
detector volume: 1.0000E+00 cm**3
low energy neutrons scored from group 1 to group 72
logar. energy binning from 1.9600E-02 to 1.9600E-02 GeV, 0 bins (ratio : 1.4816E+00)
Data follow in a vector A(ie), format (1(5x,1p,10(1x,e11.4)))
Low energy neutron data from group 1 to group 72 follow in a vector A(ig), format (1(5x,1p,10(1x,e11.4)))
0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00
0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00
0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00
0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00
0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00
0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00
0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00
0.0000E+00 0.0000E+00
usrbin result
1
Cartesian binning n. 1 "neutron " , generalized particle n. 8
X coordinate: from -5.0000E+00 to 5.0000E+00 cm, 1 bins ( 1.0000E+01 cm wide)
Y coordinate: from -5.0000E+00 to 5.0000E+00 cm, 1 bins ( 1.0000E+01 cm wide)
Z coordinate: from 1.1400E+02 to 1.2400E+02 cm, 1 bins ( 1.0000E+01 cm wide)
Data follow in a matrix A(ix,iy,iz), format (1(5x,1p,10(1x,e11.4)))
accurate deposition along the tracks requested
this is a track-length binning
0.0000E+00
1
R - Z binning n. 2 "neutron " , generalized particle n. 8
R coordinate: from 0.0000E+00 to 5.0000E-01 cm, 1 bins ( 5.0000E-01 cm wide)
Z coordinate: from 1.8850E+01 to 1.9100E+01 cm, 5 bins ( 5.0000E-02 cm wide)
axis coordinates: X = 0.0000E+00, Y = 0.0000E+00 cm
Data follow in a matrix A(ir,iz), format (1(5x,1p,10(1x,e11.4)))
accurate deposition along the tracks requested
this is a track-length binning
4.0541E-06 5.1506E-06 5.5572E-06 5.8179E-06 5.7916E-06
1
R - Z binning n. 3 "neutron " , generalized particle n. 8
R coordinate: from 0.0000E+00 to 5.0000E-01 cm, 1 bins ( 5.0000E-01 cm wide)
Z coordinate: from 1.9100E+01 to 1.9200E+01 cm, 2 bins ( 5.0000E-02 cm wide)
axis coordinates: X = 0.0000E+00, Y = 0.0000E+00 cm
Data follow in a matrix A(ir,iz), format (1(5x,1p,10(1x,e11.4)))
accurate deposition along the tracks requested
this is a track-length binning
5.7035E-06 5.5627E-06
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