Atomic and nuclear properties of materials:
Carbon (compact) (C )
QuantityValueUnits ValueUnits
Atomic number 6     
Atomic mass [12.0107(8)] g mole-1   
Density 2.27 g cm-3   
Mean excitation energy 78.0 eV   
Minimum ionization 1.745 MeV g-1cm2 3.952 MeV cm-1
Nuclear collision length 59.2 g cm-2 26.14 cm
Nuclear interaction length 85.8 g cm-2 37.89 cm
Pion collision length 86.5 g cm-2 38.17 cm
Pion interaction length 117.8 g cm-2 52.00 cm
Radiation length 42.70 g cm-2 18.85 cm
Critical energy 81.67 MeV (for e-) 79.44 MeV (for e+)
Molière radius 11.09 g cm-2 4.894 cm
Plasma energy 30.65 eV   
Muon critical energy 1057. 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