Atomic and nuclear properties of polycarbonate (Lexan, [OC6H4C(CH3)2C6H4OCO)n
QuantityValueUnits ValueUnits
<Z/A> 0.52697     
Specific gravity 1.200 g cm-3   
Mean excitation energy 73.1 eV   
Minimum ionization 1.886 MeV g-1cm2 2.263 MeV cm-1
Nuclear collision length 58.3 g cm-2 48.62 cm
Nuclear interaction length 83.6 g cm-2 69.63 cm
Pion collision length 85.7 g cm-2 71.46 cm
Pion interaction length 115.5 g cm-2 96.27 cm
Radiation length 41.50 g cm-2 34.59 cm
Critical energy 85.85 MeV (for e-) 83.57 MeV (for e+)
Molière radius 10.25 g cm-2 8.543 cm
Plasma energy ℏωp 22.91 eV   
Muon critical energy 1104. GeV   
Composition:
Elem ZAtomic frac* Mass frac
H
1
14.00
0.055491
C
6
16.00
0.755751
O
8
3.00
0.188758
* calculated from mass fraction data

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