Atomic and nuclear properties of materials:
Iodine (I )
QuantityValueUnits ValueUnits
Atomic number 53     
Atomic mass 126.90447(3) g mole-1   
Density 4.93 g cm-3   
Mean excitation energy 491.0 eV   
Minimum ionization 1.263 MeV g-1cm2 6.226 MeV cm-1
Nuclear collision length 100.0 g cm-2 20.27 cm
Nuclear interaction length 170.3 g cm-2 34.53 cm
Pion collision length 124.1 g cm-2 25.18 cm
Pion interaction length 197.7 g cm-2 40.11 cm
Radiation length 8.48 g cm-2 1.720 cm
Critical energy 11.42 MeV (for e-) 11.04 MeV (for e+)
Molière radius 15.75 g cm-2 3.194 cm
Plasma energy 41.35 eV   
Muon critical energy 200. GeV   
Melting point 386.8 K 113.7 C
Boiling point @ 1 atm 457.5 K 184.4 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