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Miwa, Kazuji; Iimoto, Takeshi*
no journal, ,
ICRP Publ.103 shows that reference levels are used for radiation protection of public exposure in existing exposure situation. However, there is no specific description about actual operation of reference levels. There is a possibility that a more rational radiation protection concept can be applied depending on the scale of environmental pollution in the existing exposure situation. This study proposes variation of radiation protection concept for public exposure assuming reusing radiation contaminated material which is in existing exposure situation.
Miwa, Kazuji
no journal, ,
There are large amount of radionuclides contaminated soil and debris in Fukushima Prefecture after Fukushima Daiichi Nuclear Power Station accident. It is difficult to dispose the entire amount of soil and debris as radioactive waste from the view point of preparing the disposal site. Therefore, we focused on the recycling as one of the way to reduce the quantity of the radionuclides contaminated materials. In this study, we organised the issues when assuming recycling in the current concept of radiation protection, and propose the way of applying the concept of radiation protection to the regulation in the field. Specifically, we proposed five ways of applying the reference level in radiation protection from radionuclides contaminated material in existing exposure situation. In addition, we calculated radionuclides concentrations for two model case of recycling applying proposed radiation protection concept.
Kinase, Sakae; Torikai, Yuji*; Mikami, Satoshi; Ando, Masaki; Saito, Kimiaki
no journal, ,
no abstracts in English