Re: How can I score neutron fluence?

Dear all,

Why I can't score neutrons ? (generated from 3 MeV proton beam) However
I can score neutrons when I increase the energy to GeV degree.

I'm already waiting for suggestions. I attached my input file.

Thanks a lot.

Best regards..

Gorkem Turemen

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Content-Type: text/plain; name="gtex.txt"
Content-Transfer-Encoding: 7bit
Content-Disposition: attachment; filename="gtex.txt"

* ..+....1....+....2....+....3....+....4....+....5....+....6....+....7...
TITLE
FLUKA Course Exercise
*
DEFAULTS
NEW-DEFA
BEAM -.003 -0.082425 1.7 0.0 0.0 1.0PROTON
BEAMPOS 0.0 0.0 0.0 0.0 0.0
GEOBEGIN
COMBNAME
    0 0
SPH BLK 0.0 0.0 0.0 10000.0
RPP AIR -4000.0 4000.0 -4000.0 4000.0 -4000.0 4000.0
SPH CNT 0.0 0.0 0.0 3000.0
SPH AIR2 0.0 0.0 0.0 500.0
END
*
BLKHOLE 5 +BLK-CNT -AIR -AIR2
AIR 5 +AIR -CNT
CONCRETE 5 +CNT-AIR2
AIR2 5 +AIR2+CNT
END
GEOEND
MATERIAL 0.001225 AIR
COMPOUND -0.9256 NITROGEN -0.2837 OXYGEN -0.01572 ARGONAIR
MATERIAL 2.34
Concrete
COMPOUND 23.0 CARBON 40.0 OXYGEN 12.0
SILICONConcrete
COMPOUND 12.0 CALCIUM 10.0 HYDROGEN 2.0
MAGNESIUConcrete
ASSIGNMA BLCKHOLE BLKHOLE
ASSIGNMA AIR AIR2
ASSIGNMA AIR AIR
ASSIGNMA Concrete CONCRETE
USRBIN 10. NEUTRON -21. 2000.0 2000.0 2000.0Neutron
USRBIN -2000.0 -2000.0 -2000.0 40.0 40.0 40.0&
RANDOMIZ 1.
START 1000.0 0.0
STOP

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Received on Mon Mar 28 2011 - 15:27:27 CEST