Atomic and nuclear properties of materials:
Platinum (Pt)
QuantityValueUnits ValueUnits
Atomic number 78     
Atomic mass 195.084(9) g mole-1   
Density 21.5 g cm-3   
Mean excitation energy 790.0 eV   
Minimum ionization 1.128 MeV g-1cm2 24.21 MeV cm-1
Nuclear collision length 112.2 g cm-2 5.230 cm
Nuclear interaction length 195.7 g cm-2 9.125 cm
Pion collision length 135.6 g cm-2 6.320 cm
Pion interaction length 222.4 g cm-2 10.37 cm
Radiation length 6.54 g cm-2 0.3051 cm
Critical energy 7.59 MeV (for e-) 7.31 MeV (for e+)
Molière radius 18.29 g cm-2 0.8527 cm
Plasma energy 84.39 eV   
Muon critical energy 144. GeV   
Melting point 2042. K 1768. C
Boiling point @ 1 atm 4098. K 3825. C
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