c Test of effect of encapsulating material on dose
1 1  -1.000   1 -2 -6        $dose disk
2 4  -3.000   3 -4 -5        $pendant
3 1  -1.000   -7 #1 #2       $tissue sphere
4 0           7              $universe

1 px 0.00      $bottom of dose disk
2 px 0.002     $top of dose disk
3 px 0.008     $bottom of pendant
4 px 0.508     $top of pendant
5 cx 2.25      $Cylinder of radioactive source
6 cx 1.78      $Cyclinder of dose disk
7 so 50        $universe

mode p e
m1    1000 0.62        $tissue
      6000 0.12
      7000 0.02
      8000 0.24
m2    1000 0.66        $water
      8000 0.34
m3    6000 0.001       $Air
      7000 0.27
      8000 0.71
     18000 0.019
m4   15000 1.0         $pendant material (what is dirt?)
imp:p 1 1 1 0
imp:e 1 1 1 0
sdef par=2 erg=1.0 pos=0 0 0 axs=1 0 0 rad=d1 ext=d2
si1 0 2.25
sp1 -21 1
si2 0.008 0.508
sp2 -21 0
*f8:p,e 1
e8 0 0.01 20i 2.0
nps 10000