Atomic and nuclear properties of materials:
Germanium (Ge)

Quantity	Value	Units	Value	Units
Atomic number	32
Atomic mass	72.64(1)	g mole-1
Density	5.32	g cm-3
Mean excitation energy	350.0	eV
Minimum ionization	1.370	MeV g-1cm2	7.292	MeV cm-1
Nuclear collision length	86.9	g cm-2	16.32	cm
Nuclear interaction length	143.0	g cm-2	26.86	cm
Pion collision length	111.9	g cm-2	21.02	cm
Pion interaction length	171.4	g cm-2	32.20	cm
Radiation length	12.25	g cm-2	2.302	cm
Critical energy	18.16	MeV (for e-)	17.58	MeV (for e+)
Molière radius	14.31	g cm-2	2.688	cm
Plasma energy	44.13	eV
Muon critical energy	297.	GeV
Melting point	1211.	K	938.2	C
Boiling point @ 1 atm	3106.	K	2833.	C

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
Explanation of some entries
Table of isotopes Warning: may not be current
x ray mass attenuation coefficients