Atomic and nuclear properties of materials:
Liquid krypton (Kr)
QuantityValueUnits ValueUnits
Atomic number 36     
Atomic mass 83.798(2) g mole-1   
Density 2.42 g cm-3   
Mean excitation energy 352.0 eV   
Minimum ionization 1.357 MeV g-1cm2 3.281 MeV cm-1
Nuclear collision length 90.0 g cm-2 37.21 cm
Nuclear interaction length 149.4 g cm-2 61.80 cm
Pion collision length 114.8 g cm-2 47.46 cm
Pion interaction length 177.6 g cm-2 73.47 cm
Radiation length 11.37 g cm-2 4.703 cm
Critical energy 17.03 MeV (for e-) 16.51 MeV (for e+)
Molière radius 14.16 g cm-2 5.857 cm
Plasma energy 29.37 eV   
Muon critical energy 277. GeV   
Melting point 115.8 K -157.4 C
Boiling point @ 1 atm 119.9 K -153.2 C
Index of refraction (@ STP, Na D) 1.30     
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
Note: Index of refraction at boiling point, 1 atm.
Table of isotopes Warning: may not be current
x ray mass attenuation coefficients