Radiation Dose Limits: ICRP103
wR photons to wT liver
Radiation dose limits for occupational workers and the public per 10 CFR 20 (NRC), 10 CFR 835 (DOE), ICRP Publication 103 (2007), and EU BSS Directive 2013/59/Euratom. Includes annual effective dose limits (whole-body, lens, skin, extremities), pregnancy limits, ALI/DAC values for key radionuclides, tissue weighting factors (wT), and radiation weighting factors (wR) used in equivalent and effective dose calculations.
| regulatory framework | dose category | condition | limit type | organ or tissue | value mSv yr (mSv/yr) |
|---|---|---|---|---|---|
| ICRP103 | wR photons | ICRP 103 wR; HT = wR × DT | radiation weighting factor | all photon energies | 1 |
| ICRP103 | wR protons | ICRP 103 wR | radiation weighting factor | protons >2 MeV | 2 |
| ICRP103 | wT bladder | ICRP 103 wT | tissue weighting factor | bladder | 0.04 |
| ICRP103 | wT bone marrow | ICRP 103 wT | tissue weighting factor | red bone marrow | 0.12 |
| ICRP103 | wT bone surface | ICRP 103 wT | tissue weighting factor | bone surface | 0.01 |
| ICRP103 | wT brain | ICRP 103 wT | tissue weighting factor | brain | 0.01 |
| ICRP103 | wT breast | ICRP 103 wT | tissue weighting factor | breast | 0.12 |
| ICRP103 | wT colon | ICRP 103 wT | tissue weighting factor | colon | 0.12 |
| ICRP103 | wT gonads | ICRP 103 wT | tissue weighting factor | gonads | 0.08 |
| ICRP103 | wT liver | ICRP 103 wT | tissue weighting factor | liver | 0.04 |
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