Atomic and nuclear properties of beryllium oxide (BeO)
QuantityValueUnits ValueUnits
<Z/A> 0.47979     
Specific gravity 3.010 g cm-3   
Mean excitation energy 93.2 eV   
Minimum ionization 1.665 MeV g-1cm2 5.012 MeV cm-1
Nuclear collision length 59.0 g cm-2 19.61 cm
Nuclear interaction length 85.3 g cm-2 28.33 cm
Pion collision length 86.2 g cm-2 28.63 cm
Pion interaction length 117.3 g cm-2 38.97 cm
Radiation length 41.30 g cm-2 13.72 cm
Critical energy 74.86 MeV (for e-) 72.79 MeV (for e+)
Molière radius 11.70 g cm-2 3.887 cm
Plasma energy ℏωp 34.63 eV   
Muon critical energy 976. GeV   
Composition:
Elem ZAtomic frac* Mass frac
Be
 4
1.00
0.360320
O
8
1.00
0.639680
* 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