Sample Problem Imput Deck C cell cards for sample problem 1 1 -0.0014 -7 IMP:N=1 2 2 -0.786 -8 3 3 -1.060 1 -2 -3 4 -5 6 7 8 4 0 -1:2:3:-4:5:-6 C end of cell cards for sample problem C Surface Cards C Begining of surfaces for cube 1 PX -5 $ 5cm negitive of x=0 2 PX 5 $ 5cm positive of x=0 3 PY 5 4 PY -5 5 PZ -5 6 PZ 6 C End of Cube surfaces C Begin Sphere Surfaces 7 S 0 -4 -2.5 0.5 $ oxygen sphere 8 S 0 4 4 0.5 $ iron sphere C End spheres C Data cards IMP:N 1 1 1 0 $relative cell importance cells 1-3 have same importance cell 4 is void so 0 SDEF POS=0 -4 -2.5 CEL=1 ERG=14 WGT=1 TME=0 PAR=N $ Source Specification position is (x,y,z) CEL is starting cell ERG is energy MeV WGT is starting weight TME is starting time and PAR is particle type F2:N 8 $ flux across surface 8 F4:N 2 $ track length in cell 2 E2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 $ create 14 energy bins for tally 2 E4 1 12I 14 $ create 14 energy bins for tally 4 M1 8016 1 $ oxygen 16 M2 26000 1 $ natural Iron M3 6000 1 $ carbon NPS 10000 $ 10K historis cut off