Atomic and nuclear properties of materials:
Sodium monoxide Na2O
QuantityValueUnits ValueUnits
<Z/A> 0.48404     
Specific gravity 2.27 g cm-3   
Minimum ionization 1.646 MeV g-1cm2 3.737 MeV cm-1
Nuclear collision length 65.8 g cm-2 28.97 cm
Nuclear interaction length 99.0 g cm-2 43.63 cm
Radiation length 29.17 g cm-2 12.85 cm
Critical energy 53.04 MeV (for e-) 51.56 MeV (for e+)
Molière radius 11.66 g cm-2 5.137 cm
Plasma energy 30.21 eV   
Muon critical energy 735. GeV   
Composition:
Elem ZAtomic frac* Mass frac*
O
8
1.00
0.258143
Na
 11
2.00
0.741857
* 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