Atomic and nuclear properties of Kolar Gold Fields rock, std rock density
QuantityValueUnits ValueUnits
<Z/A> 0.48605     
Specific gravity 2.650 g cm-3   
Mean excitation energy 183.4 eV   
Minimum ionization 1.614 MeV g-1cm2 4.278 MeV cm-1
Nuclear collision length 69.1 g cm-2 26.09 cm
Nuclear interaction length 106.1 g cm-2 40.02 cm
Pion collision length 95.1 g cm-2 35.88 cm
Pion interaction length 135.6 g cm-2 51.16 cm
Radiation length 24.36 g cm-2 9.194 cm
Critical energy 43.83 MeV (for e-) 42.58 MeV (for e+)
Molière radius 11.79 g cm-2 4.449 cm
Plasma energy ℏωp 32.70 eV   
Muon critical energy 628. GeV   
Composition:
Elem ZAtomic frac* Mass frac
Mg
 12
0.38
0.355713
Al
 13
0.62
0.644287
* 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