Atomic and nuclear properties of materials:
Nickel (Ni)

Quantity	Value	Units	Value	Units
Atomic number	28
Atomic mass	58.6934(4)	g mole-1
Density	8.90	g cm-3
Minimum ionization	1.468	MeV g-1cm2	13.07	MeV cm-1
Nuclear collision length	82.6	g cm-2	9.280	cm
Nuclear interaction length	134.1	g cm-2	15.06	cm
Pion collision length	107.9	g cm-2	12.12	cm
Pion interaction length	162.6	g cm-2	18.27	cm
Radiation length	12.68	g cm-2	1.424	cm
Critical energy	20.05	MeV (for e-)	19.41	MeV (for e+)
Molière radius	13.41	g cm-2	1.506	cm
Plasma energy	59.38	eV
Muon critical energy	326.	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
Explanation of some entries
Table of isotopes Warning: may not be current
x ray mass attenuation coefficients