Atomic and nuclear properties of materials:
Neodymium (Nd)

Quantity	Value	Units	Value	Units
Atomic number	60
Atomic mass	144.242(3)	g mole-1
Specific gravity	6.90	g cm-3
Minimum ionization	1.231	MeV g-1cm2	8.494	MeV cm-1
Nuclear collision length	103.4	g cm-2	14.98	cm
Nuclear interaction length	177.4	g cm-2	25.71	cm
Radiation length	7.71	g cm-2	1.117	cm
Critical energy	10.03	MeV (for e-)	9.68	MeV (for e+)
Molière radius	16.30	g cm-2	2.362	cm
Plasma energy	48.82	eV
Muon critical energy	180.	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
x ray mass attenuation coefficients