Atomic and nuclear properties of materials:
Yttrium (Y )
QuantityValueUnits ValueUnits
Atomic number 39     
Atomic mass 88.90585(2) g mole-1   
Density 4.47 g cm-3   
Mean excitation energy 379.0 eV   
Minimum ionization 1.359 MeV g-1cm2 6.075 MeV cm-1
Nuclear collision length 91.3 g cm-2 20.43 cm
Nuclear interaction length 152.2 g cm-2 34.05 cm
Pion collision length 116.0 g cm-2 25.96 cm
Pion interaction length 180.3 g cm-2 40.34 cm
Radiation length 10.41 g cm-2 2.329 cm
Critical energy 15.30 MeV (for e-) 14.81 MeV (for e+)
Molière radius 14.43 g cm-2 3.228 cm
Plasma energy 40.35 eV   
Muon critical energy 256. 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