Atomic and nuclear properties of materials:

Quantity	Value	Units
<Z/A>	0.00000
Specific gravity	??	g cm-3
Minimum ionization	20.000	MeV g-1cm2
Nuclear collision length	inf	g cm-2
Nuclear interaction length	inf	g cm-2
Radiation length	inf	g cm-2
Critical energy	nan	MeV (for e-)
Molière radius	nan	g cm-2
Plasma energy	0.00	eV
Muon critical energy	nan	GeV

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