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	6.77	g cm-3
Mean excitation energy	523.0	eV
Minimum ionization	1.234	MeV g-1cm2	8.353	MeV cm-1
Nuclear collision length	102.6	g cm-2	15.15	cm
Nuclear interaction length	175.7	g cm-2	25.96	cm
Pion collision length	126.6	g cm-2	18.70	cm
Pion interaction length	203.0	g cm-2	29.99	cm
Radiation length	7.96	g cm-2	1.175	cm
Critical energy	10.40	MeV (for e-)	10.04	MeV (for e+)
Molière radius	16.23	g cm-2	2.397	cm
Plasma energy	48.24	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