Radiation exposure incurred by patients as part of their own medical or dental diagnosis or treatment; by persons other than those occupationally exposed knowingly while voluntarily helping in the support and comfort of patients; and by volunteers in a programme of biomedical research involving their exposure. (ICRP Publication 135, 2017)
ICRP Glossary entry - May 2019
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Exposure incurred by patients as part of their own medical or dental diagnosis or treatment; by persons, other than those occupationally exposed, knowingly, while voluntarily helping in the support and comfort of patients; and by volunteers in a programme of biomedical research involving their exposure. (From ICRP Publication 103, 2007)
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