Monetary values of unit collective dose in optimization of radiation protection

Takahara, Shogo  ; Kato, Takaaki*; Homma, Toshimitsu

The monetary value of the person-sievert is a key element in implementing the optimization principle of the radiation protection. The objective of this paper are to evaluate the country-specific monetary value of the person-sievert reflecting the economic and population characteristics in Japan. When we calculated the monetary values of the person-sievert in Japan using human capital method and willingness to pay approach, the values were around several million yen/person-Sv and 20 million yen/person-Sv, respectively. In addition, we reviewed the cost of radiological protective measures per person-sievert avoided. As the results of comparing the cost and benefit, the costs of radiological protective measures to reduce the concentration of radon in homes and to protect workers in nuclear facilities were balanced with the benefit. On the other hand, the costs of radionuclide emission control measures at industrial facilities tend to be higher than the benefit of those measures.