Dear Justin
You forgot to assign materials to regions. It could be done by adding
ASSIGNMAT card.
Cheers,
Viktor
2017-02-08 19:55 GMT+02:00 Justin Raudabaugh <justin.raudabaugh_at_duke.edu>:
> Dear FLUKA experts,
>
> I am trying to understand generation of optical photons, and attempting to
> recreate the code from the Cherenkov example in section 12.2.3 of the FLUKA
> manual. I have typed up the code, but I am not seeing any photons
> generated. The code runs (suspiciously quickly for a large number of
> histories) , but doesn’t appear to do anything. Any thoughts on what the
> problem could be? Code attached
>
>
> TITLE
> scint
> * Set the defaults for precision simulations
> DEFAULTS
> PRECISIO
> * Define the beam characteristics
> BEAM -10.00 MUON+
> * Define the beam position
> BEAMPOS 0.0 0.0 199.0
> NEGATIVE
> DELTARAY -1.0 ARGON ARGON
> NOPRINT
> PAIRBREM -3. ARGON ARGON
> MUPHOTON -1.0 ARGON ARGON
> PHOTONUC -1. HYDROGEN NICKEL
> IONTRANS 4-HELIUM
> DISCARD NEUTRIM ANEUTRIM NEUTRIT ANEUTRIT NEUTRIE ANEUTRIE
> GEOBEGIN
> COMBNAME
> 0 0
> RPP blkhole -999.0 999.0 -999.0 999.0 -999.0 999.0
> RPP argon -200.0 200.0 -200.0 200.0 -200.0 200.0
> END
> * Black hole
> BLKBODY 5 +blkhole -argon
> * Target
> liquid 5 +argon
> END
> GEOEND
> EMF
> EMF-OFF
> MATERIAL 18.0 39.948 0.00166 20. ARGON
> LOW-MAT ARGON 18. -2. 87. ARGON
> OPT-PROP 1.000E-05 3.5E-05 6.000E-05 HYDROGEN NICKEL
> WV-LIMIT
> OPT-PROP 1.0 HYDROGEN NICKEL METAL
> OPT-PROP ARGON ARGON RESET
> OPT-PROD ARGON ARGON
> SCIN-OFF
> OPT-PROD 2.0E-09 3.0E-09 ARGON ARGON
> CERENKOV
> MAT-PROP 1. ARGON ARGON
> USERDIRE
> OPT-PROD 1.100E-05 5.500E-05 ARGON ARGON
> CEREN-WV
> OPT-PROP 1.000E-05 3.500E-05 6.000E-05 ARGON ARGON
> WV-LIMIT
> OPT-PROP -100.0 0.001 0.01111 ARGON ARGON
> OPT-PROP 0.1 0.1
> SENSITIV
> SCORE ENERGY OPTIPHOT ALL-PART BEAMPART
> * Set the random number seed
> RANDOMIZ 1.0
> USRBDX 1. OPTIPHOT -55. liquid BLKBODY
> 1.0opt.phot
> USRBDX 12.0E-09 0.0 120.0 &
> USRBIN 10. ENERGY -56. 200. 200.
> 200.optphotbin
> USRBIN -200. -200. -200. 200. 200. 200. &
> *USERDUMP 100. 49. 2.
> MGDRAW
> * Set the number of primary histories to be simulated in the run
> START 10000.0
> STOP
>
> Thanks for your time,
> Justin Raudabaugh
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Received on Thu Feb 09 2017 - 19:15:46 CET