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As any radiation exposure may involve some degree of risk the International Commission of Radiation Protection recommends that any unnecessary exposure be avoided, and that all doses be kept ALARA, i. e., as low as is readily achievable, economic and social considerations being taken into account. To define the level at which it can be said that a dose is ALARA the use of cost- (or risk-) benefit analysis is required. In making a cost-benefit calculation the most difficult step is the conversion of positive and negative effect into a consistent set of units, i. e., conversion of man-rem into dollars. This paper presents the monetary value of population dose which appeared in the past reports (six papers reffered by ICRP Publication 22, BEIR Report and NRC-10CFR50, App. I).We must be very careful in the application of cost-benefit analysis to decision making of individual cases, but the estimated risk in monetary term may help us at least to check whether we act in a consistent way.
日本保健物理学会の論文