Atomic and nuclear properties of materials:
A-150 tissue-equivalent plastic
QuantityValueUnits ValueUnits
<Z/A> 0.54903     
Specific gravity 1.13 g cm-3   
Minimum ionization 1.978 MeV g-1cm2 2.229 MeV cm-1
Nuclear collision length 57.5 g cm-2 50.99 cm
Nuclear interaction length 81.4 g cm-2 72.20 cm
Radiation length 41.86 g cm-2 37.14 cm
Critical energy 90.49 MeV (for e-) 88.09 MeV (for e+)
Molière radius 9.81 g cm-2 8.704 cm
Plasma energy 22.67 eV   
Muon critical energy 1159. GeV   
Composition:
Elem ZAtomic frac* Mass frac*
H
1
1.00
0.101327
C
6
0.64
0.775501
N
7
0.02
0.035057
O
8
0.03
0.052316
F
9
0.01
0.017422
Ca
 20
0.00
0.018378
* calculated from mass fraction data.

Explanation of some entries
For muons, dE/dx = a(E) + b(E) E. Tables of b(E): PS PDF TEXT
Table of muon dE/dx and Range: PS PDF TEXT