Atomic and nuclear properties of polyimide film [(C22H10N2O5)n]
QuantityValueUnits ValueUnits
<Z/A> 0.51264     
Specific gravity 1.420 g cm-3   
Mean excitation energy 79.6 eV   
Minimum ionization 1.820 MeV g-1cm2 2.584 MeV cm-1
Nuclear collision length 59.2 g cm-2 41.67 cm
Nuclear interaction length 85.5 g cm-2 60.20 cm
Pion collision length 86.5 g cm-2 60.91 cm
Pion interaction length 117.4 g cm-2 82.71 cm
Radiation length 40.58 g cm-2 28.57 cm
Critical energy 81.01 MeV (for e-) 78.84 MeV (for e+)
Molière radius 10.62 g cm-2 7.479 cm
Plasma energy ℏωp 24.59 eV   
Muon critical energy 1050. GeV   
Composition:
Elem ZAtomic frac* Mass frac
H
1
10.00
0.026362
C
6
22.00
0.691133
N
7
2.00
0.073270
O
8
5.00
0.209235
* 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