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Copyright ©2013 Baishideng Publishing Group Co.
World J Cardiol. Dec 26, 2013; 5(12): 459-464
Published online Dec 26, 2013. doi: 10.4330/wjc.v5.i12.459
Table 1 Radiation weighting factor for various type and energy range
Type and energy rangeRadiation weighting factor, WR (ICRP-60)
Photons, all energy1
Electrons, muons, all energy1
Neutrons < 10 keV5
10 eV-100 keV10
> 100 keV-2MeV20
> 2–20 MeV10
> 20 MeV5
Protons > 2 MeV5
Alpha particles, fission fragments and heavy nuclei20