Atomic and nuclear properties of materials:
Ytterbium (Yb)
QuantityValueUnits ValueUnits
Atomic number 70     
Atomic mass 173.054(5) g mole-1   
Density 6.73 g cm-3   
Mean excitation energy 684.0 eV   
Minimum ionization 1.159 MeV g-1cm2 7.803 MeV cm-1
Nuclear collision length 108.6 g cm-2 16.13 cm
Nuclear interaction length 188.2 g cm-2 27.96 cm
Pion collision length 132.2 g cm-2 19.64 cm
Pion interaction length 215.1 g cm-2 31.96 cm
Radiation length 7.02 g cm-2 1.043 cm
Critical energy 8.53 MeV (for e-) 8.22 MeV (for e+)
Molière radius 17.46 g cm-2 2.594 cm
Plasma energy 47.54 eV   
Muon critical energy 161. 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