Atomic and nuclear properties of polyethylene terephthalate (Mylar) [(C10H8O4)n]
QuantityValueUnits ValueUnits
<Z/A> 0.52037     
Specific gravity 1.400 g cm-3   
Mean excitation energy 78.7 eV   
Minimum ionization 1.848 MeV g-1cm2 2.588 MeV cm-1
Nuclear collision length 58.9 g cm-2 42.10 cm
Nuclear interaction length 84.9 g cm-2 60.62 cm
Pion collision length 86.3 g cm-2 61.64 cm
Pion interaction length 116.8 g cm-2 83.44 cm
Radiation length 39.95 g cm-2 28.54 cm
Critical energy 80.95 MeV (for e-) 78.78 MeV (for e+)
Molière radius 10.46 g cm-2 7.475 cm
Plasma energy ℏωp 24.60 eV   
Muon critical energy 1051. GeV   
Composition:
Elem ZAtomic frac* Mass frac
H
1
4.00
0.041959
C
6
5.00
0.625017
O
8
2.00
0.333025
* 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