Overview
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Henri MÉTIVIER: Doctor of Science - Research Director - Assistant to the Director of the Institute for Nuclear Protection and Safety - Member of the International Commission on Radiological Protection
INTRODUCTION
Irradiation by ionizing radiation comes from two major sources: natural radiation, in which man is constantly immersed, and radiation sources of "human" origin, i.e. those associated with modern technology. For most countries, irradiation from natural sources remains the most important, followed by medical irradiation, which depends closely on the country's level of technology, and finally, for populations, irradiation linked to the nuclear industry. The United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR) regularly updates its radiation inventory, most recently in 1993. For France, the average individual irradiation due to natural radioactivity is around 2 mSv per year in effective dose, and can vary from one region to another by a factor of 3. Diagnostic radiation from medical sources is half that, at around 1 mSv per year in effective dose.
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Sources of ionizing radiation
Bibliography
- Recommandations of the International Commission on Radiological Protection. - ICRP Publication 60 (Annals of the ICRP Vol. 21 n˚ 1-3), 1990 Pergamon Press, Oxford, 1991. Édition française publiée sous le titre Recommandations 1990 de la Commission Internationale de Protection Radiologique, CIPR Publication 60, Pergamon Press, Oxford, 1993....
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