. Author manuscript; available in PMC: 2018 Jan 22.

Published in final edited form as: Emerg Med Clin North Am. 2014 Nov 15;33(1):179–196. doi: 10.1016/j.emc.2014.09.008

Table 1.

Radiation weighting factors in ICRP Publication 60

Type and Energy Range	Radiation Weighting Factor
Photons, all energies	1
Electrons and muons, all energies	1
Neutrons, energy
<10 keV	5
>10 keV–100 keV	10
>100 keV–2 MeV	20
>2 MeV–20 MeV	10
>20 MeV	5
Protons, energy >2 MeV	5
Alpha particles, fission fragments, heavy nuclei	20

Data from ICRP. 1990 Recommendations of the International Commission on Radiological Protection. ICRP Publication 60; 1991. Ann. ICRP 21 (1–3).