Atomic and nuclear properties of materials:
Heavymet as in Rochester gamma stop
QuantityValueUnits ValueUnits
<Z/A> 0.40915     
Density 19.3 g cm-3   
Mean excitation energy 727.0 eV   
Minimum ionization 1.164 MeV g-1cm2 22.47 MeV cm-1
Nuclear collision length 106.9 g cm-2 5.538 cm
Nuclear interaction length 184.2 g cm-2 9.546 cm
Pion collision length 130.8 g cm-2 6.777 cm
Pion interaction length 211.6 g cm-2 10.97 cm
Radiation length 7.10 g cm-2 0.3677 cm
Critical energy 8.55 MeV (for e-) 8.24 MeV (for e+)
Molière radius 17.59 g cm-2 0.9115 cm
Plasma energy 80.98 eV   
Muon critical energy 159. GeV   
Composition:
Elem ZAtomic frac* Mass frac*
Ni
 28
1.00
0.060000
Cu
 29
0.62
0.040000
W
74
4.79
0.900000
* 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
Note: Tungsten properties except for average Z/A used in calculations