MCNPX Visual Editor Version X_24J 
c     Created on: Friday, August 14, 2015 at 16:07                              
    1     0         -1  u=1 lat=1 imp:n=1   $ROW 1
            fill=0:2 0:0 0:2
      10 10 10  $ROW 1 
      10 10 10  $ROW 1 
      10 10 10  $ROW 1 
    2     0         -7  trcl=1 fill=1 imp:n=1  
    3   280      -1 -8  u=10 imp:n=1  
    4     0         8  u=10 imp:n=1  
   99     0         #2  imp:n=0  

    1       rpp -10 10 -10 10 -10 10 
     7       rpp -9.9999 49.9999 -9.9999 9.9999 -9.9999 49.9999  $runs ok
c    7       rpp -10 50 -10 10 -10 50    $zero lattice hit on rotation          
    8        so 8 

mode  n
m280  1001.70c      -0.111915  $Water   (density of 1 assumed)
      8016.70c      -0.888085 
*tr1 0 0 0 45 90 -45 90 0 90 135 90 45 
sdef cel=d1 rad=d2                                                              
si1  L (3<1[0:2 0:0 0:2]<2)                                                     
sp1 1   8r                                                                      
si2  8                                                                          
nps  100000                                                                     
f4:n 3