13
 1  1 3.0     0.0770  40.862  0.0   !H3,  pf=50%*0%
 7 14 3.0     0.3570  40.862  0.0   !14N, pf=50%*0%
 2  4 3.0     0.0725  94.322  0.0   !tgt He, pf=50% 
 2  4 0.5     0.1450  94.322 -1.75  !LHe
 2  4 0.5     0.1450  94.322  1.75  !LHe
13 27 0.00381 2.7000  24.011 -1.50  !endcap
13 27 0.00381 2.7000  24.011  1.50  !endcap
13 27 0.01016 2.7000  24.011 -2.20  !tail
13 27 0.01016 2.7000  24.011  2.20  !tail
13 27 0.00254 2.7000  24.011 -3.80  !4K 
13 27 0.00254 2.7000  24.011  3.80  !4K  
29 64 0.00050 8.9600  12.860  0.0   !NMR-Cu
28 59 0.00022 8.9020  12.680  0.0   !NMR-Ni
z  a  length  density radlen  zpos