Radiation Protection Regulations (SOR/2000-203)
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Regulations are current to 2022-06-20 and last amended on 2021-01-01. Previous Versions
SCHEDULE 2(Subsection 1(1))
Radiation Weighting Factors
| Column 1 | Column 2 | |
|---|---|---|
| Item | Type of Radiation | Weighting Factor |
| 1 | Photons, all energies | 1 |
| 2 | Electrons and muons, all energiesFootnote for Radiation Weighting Factors1 | 1 |
| 3 | Protons and charged pions | 2 |
| 4 | Alpha particles, fission fragments and heavy ions | 20 |
| 5 | Neutrons | A continuous function of neutron energyFootnote for Radiation Weighting Factors2 |
Return to footnote 1Excluding Auger electrons emitted from nuclei bound to DNA.
Return to footnote 2Radiation weighting factors for these neutrons may also be obtained by referring to the continuous curve shown in Figure 1, and Equation 4.3, on page 66 of the English version of The 2007 Recommendations of the International Commission on Radiological Protection, ICRP Publication 103, published in 2007.
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