Atomic and nuclear properties of deuterium gas (D2)
QuantityValueUnits ValueUnits
Atomic number 1     
Atomic mass 2.014101778(13) g mol-1   
Density (20° C, 1 atm) 1.677E-04 g cm-3   
Mean excitation energy 19.2 eV   
Minimum ionization 2.053 MeV g-1cm2 3.444E-04 MeV cm-1
Nuclear interaction length 71.8 g cm-2 4.280E+05 cm
Nuclear collision length 51.3 g cm-2 3.062E+05 cm
Pion interaction length 110.1 g cm-2 6.565E+05 cm
Pion collision length 81.4 g cm-2 4.855E+05 cm
Radiation length 125.98 g cm-2 7.512E+05 cm
Critical energy 345.50 MeV (for e-) 339.03 MeV (for e+)
Muon critical energy 2943. GeV   
Molière radius 7.73 g cm-2 4.611E+04 cm
Plasma energy ωp 0.26 eV   
Boiling point @ 1 atm 23.65 K -249.5 C
Triple point 18.69 K -254.5 C
Index of refraction (0° C, 1 atm, Na D) 138. (n-1)x106     
For muons, dE/dx = a(E) + b(E) E. Tables of b(E): PDF TEXT
Table of muon dE/dx and Range: PDF TEXT
Explanation of some entries
x ray mass attenuation coefficients from NIST