Atomic and nuclear properties of materials:
n-pentane (C5H12)
QuantityValueUnits ValueUnits
<Z/A> 0.58212     
Density 0.626 g cm-3   
Minimum ionization 2.148 MeV g-1cm2 1.345 MeV cm-1
Nuclear collision length 55.6 g cm-2 88.85 cm
Nuclear interaction length 77.4 g cm-2 123.6 cm
Pion collision length 83.3 g cm-2 133.0 cm
Pion interaction length 109.2 g cm-2 174.4 cm
Radiation length 45.14 g cm-2 72.08 cm
Critical energy 106.25 MeV (for e-) 103.51 MeV (for e+)
Molière radius 9.01 g cm-2 14.39 cm
Plasma energy 17.40 eV   
Muon critical energy 1329. GeV   
Index of refraction (@ STP, Na D) 1711.     
Composition:
Elem ZAtomic frac* Mass frac*
H
1
12.00
0.167635
C
6
5.00
0.832365
* 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