From: Lindley Winslow (LAWinslow@lbl.gov)
Date: Sat Dec 02 2006 - 04:28:21 CET
Hello all,
I was comparing my results from the attached setup with results
others has obtained with an older version of FLUKA and a similar
setup. The most obvious difference is my neutrons are an order of
magnitude low and pi+ higher relative to pi-. I was wondering:
1) Had I correctly setup the PHYSICS model for a problem where
residual nuclei scoring was important?
2) I thought I understood from the manual that LOW-MAT or LOW-NEUT
cards were not needed for this setup and that low energy neutrons
would be transported by default.
I am running:
FLUKA2006 Version 3.0 Sep-06 by A. Ferrari DATE: 12/ 1/ 6 TIME:
19: 5:41
Thank you,
Lindley
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*...+....1....+....2....+....3....+....4....+....5....+....6....+....7....+....8
TITLE
Simple Muon Spallation Monte-Carlo in LS target.
*...+....1....+....2....+....3....+....4....+....5....+....6....+....7...+...8
BEAM 2.85E+02 MUON-
BEAMPOS 0.0 0.0 -50.0
*
GEOBEGIN COMBNAME
0 0 A simple LS target inside vacuum
RPP body1 -5000000.0 +5000000.0 -5000000.0 +5000000.0 -5000000.0 +5000000.0
RPP body2 -1000000.0 +1000000.0 -1000000.0 +1000000.0 -100.0 +1000000.0
RCC body3 0.0 0.0 0.0 0.0 0.0 1000.0 500.0
* plane to separate the upstream and downstream part of the target
*XYP body4 2.5
END
* black hole
regBH1 5 +body1 -body2 -body3
* vacuum around
regVA2 5 +body2 -body3
* LS target 1st half
regBE3 5 +body3
* LS target 2nd half
*regBE4 5 +body3 -body4
END
* The next is an example of geometry debugging:
*GEOEND 150. 75. 220. 30. 0. -220.DEBUG
*GEOEND 120. 1. 110. 0. 0. 0. &
*STOP
* Normal End.
GEOEND
*...+....1....+....2....+....3....+....4....+....5....+....6....+....7....+....8
* Here defines materials and Compounds for LS
*...+....1....+....2....+....3....+....4....+....5....+....6....+....7....+...
*1) Hydrogen
MATERIAL 1.0 1.00794 0.0000837 3.0 1.0 HYDROGEN
*2) Carbon
MATERIAL 6.0 12.0107 2.00 6.0 CARBON
*3) Oxygen
MATERIAL 8.0 15.9994 0.00133 8.0 OXYGEN
* liquid scintillator
MATERIAL 0.0 0.0 0.77754 26.0 0.0 0. LIQUIDS
COMPOUND -0.34 6.0 -0.66 3.0 0.0 0. LIQUIDS
* LS target, 1st and 2nd half
ASSIGNMAT LIQUIDS regBE3
* regBE4
* External Black Hole
ASSIGNMAT BLCKHOLE regBH1
* Vacuum
ASSIGNMAT VACUUM regVA2
* Turn on the Physics Model, What is SCORE doing?
*...+....1....+....2....+....3....+....4....+....5....+....6....+....7....+....8
EVENTYPE 0.0 0.0 2.0 0.0 0.0 0.DPMJET
PHYSICS 3.0 EVAPORAT
PHYSICS 1.0 COALESCE
*
* Activates Residual Nuclei scoring
*...+....1....+....2....+....3....+....4....+....5....+....6....+....7....+...
RESNUCLEI 3.0 34.0 regBE3
RESNUCLEI 1.0 35.0 regBE3
RESNUCLEI 2.0 36.0 regBE3
*...+....1....+....2....+....3....+....4....+....5....+....6....+....7....+...
* Cartesian binning of the pion fluence inside and around the target
* R-Z binning of the neutron fluence inside and around the target
USRBIN 11.0 NEUTRON -50.0 500.0 0.0 1000.nuFluBin
USRBIN 0.0 0.0 0.0 50.0 1.0 1.0 &
* R-Z binning of the neutron fluence inside and around the target
USRBIN 11.0 NEUTRON 51.0 500.0 0.0 1000.nuFluBin
USRBIN 0.0 0.0 0.0 50.0 1.0 1.0 &
* R-Z binning of the neutron fluence inside and around the target
USRBIN 11.0 ELECTRON 52.0 500.0 0.0 1000.nuFluBin
USRBIN 0.0 0.0 0.0 50.0 1.0 1.0 &
* R-Z binning of the energy deposited inside and around the target
USRBIN 11.0 ENERGY -53.0 500.0 0.0 1000.nuFluBin
USRBIN 0.0 0.0 0.0 50.0 1.0 1.0 &
*...+....1....+....2....+....3....+....4....+....5....+....6....+....7...+...8
USRTRACK 1.0 NEUTRON 62.0 regBE3 1.0 1000. nuTrck
USRTRACK 1. 0. &
USRTRACK 1.0 ELECTRON 63.0 regBE3 1.0 1000.eminTrck
USRTRACK 1. 0. &
USRTRACK 1.0 POSITRON 64.0 regBE3 1.0 1000.eposTrck
USRTRACK 1. 0. &
USRTRACK 1.0 PHOTON 65.0 regBE3 1.0 1000.photTrck
USRTRACK 1. 0. &
USRTRACK 1.0 PROTON 66.0 regBE3 1.0 1000.protTrck
USRTRACK 1. 0. &
USRTRACK 1.0 PION+ 67.0 regBE3 1.0 1000.piplTrck
USRTRACK 1. 0. &
USRTRACK 1.0 PION- 68.0 regBE3 1.0 1000.pimnTrck
USRTRACK 1. 0. &
* Dump all particles.
* Notice slightly different bar to get formatting right.
USERDUMP 200.0 37.0 1.0 1.0 SRCEPART
* This one is from USDRAW
OPEN 71.0
usrdraw.txt
*...+....1....+....2....+....3....+....4....+....5....+....6....+....7....+....8
RANDOMIZE 1.0
*...+....1....+....2....+....3....+....4....+....5....+....6....+....7....+....8
START 10000.0
STOP
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