Auxiliary files

As long as FLUKA makes use of the ``pemf'' file for the tabulation of the electro-magnetic cross sections, the user must prepare a pemf file, using the tools of subdirectory pemf in $FLUPRO. The user must refer to the manual (sec. 13 and 14) for the specific instructions. Here we just remind that the materials to be prepared for this example are: AIR, IRON, LIF and PVC (and not the the individual elements composing the mixtures or the compounds). Energy tabulation must cover the range from the minimum energy cut up to the maximum, determined by the beam card. For example, air has to be prepared as a mixture (MIXT) of 3 elements (N, O and AR) having PZ = 7.84754E-01, 2.10573E-01 and 4.67309E-03, respectively. Being a gas, GASP = 1.0 has to be specified, beyond the density. Rayleigh tabulation (IRAYL = 1) is also necessary:

MIXT
 $INP
  NE=3,
  RHO=0.001225,
  RHOZ= 0.9256E-3 0.2837E-3 0.01572E-3,
  GASP=1.,
  IRAYL=1,
 $END
AIR                           AIR
N  O  AR
ENER2
 $INP1 AE=.521,UE=1500000.5211,AP=1000000.01,UP=50. $END
PWLF
 $INP NALE=300,NALG=400,NALR=100 $END
DECK
 $INP $END		
TEST
 $INP $END