Atomic and nuclear properties of baksan rock, std rock density
QuantityValueUnits ValueUnits
<Z/A> 0.49228     
Specific gravity 2.650 g cm-3   
Mean excitation energy 175.6 eV   
Minimum ionization 1.637 MeV g-1cm2 4.337 MeV cm-1
Nuclear collision length 68.1 g cm-2 25.71 cm
Nuclear interaction length 104.0 g cm-2 39.23 cm
Pion collision length 94.1 g cm-2 35.51 cm
Pion interaction length 133.5 g cm-2 50.38 cm
Radiation length 25.27 g cm-2 9.534 cm
Critical energy 45.97 MeV (for e-) 44.66 MeV (for e+)
Molière radius 11.66 g cm-2 4.398 cm
Plasma energy ℏωp 32.91 eV   
Muon critical energy 655. GeV   
Composition:
Elem ZAtomic frac* Mass frac
Na
 11
0.10
0.095103
Mg
 12
0.90
0.904897
* 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
Note: Ieff calculated using the ICRU37 Table 5.1 algorithm for liquids and solids