Atomic and nuclear properties of materials:
Cerium (Ce)

Quantity	Value	Units	Value	Units
Atomic number	58
Atomic mass	140.116(1)	g mole-1
Density	6.66	g cm-3
Mean excitation energy	523.0	eV
Minimum ionization	1.234	MeV g-1cm2	8.215	MeV cm-1
Nuclear collision length	102.6	g cm-2	15.41	cm
Nuclear interaction length	175.7	g cm-2	26.40	cm
Pion collision length	126.6	g cm-2	19.02	cm
Pion interaction length	203.0	g cm-2	30.50	cm
Radiation length	7.96	g cm-2	1.195	cm
Critical energy	10.40	MeV (for e-)	10.05	MeV (for e+)
Molière radius	16.22	g cm-2	2.436	cm
Plasma energy	47.83	eV
Muon critical energy	185.	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