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Discussion on optimisation below dose limit for public using background-cancer-risk-based approach

, : Discussion on optimisation below dose limit for public using background-cancer-risk-based approach. Radiation Protection Dosimetry 146(1-3): 206-208

To improve a radiological protection system, the lower bound of optimisation was discussed using a newly proposed background-cancer-risk-based approach. This approach provides a new finding that the standard deviation of the background cancer risk in Japan is 7.4 × 10(-5) y(-1). If this risk level corresponding to 1σ can be regarded as a non-concern level, it would be possible that the lower bound of optimisation of radiological protection could be set at 1 mSv y(-1), since the assumed risk of 1 mSv y(-1) is equivalent to ~5 × 10(-5) y(-1) obtained using the overall fatal risk coefficient of 5 % Sv(-1), which is lower than the non-concern level.


PMID: 21498410

DOI: 10.1093/rpd/ncr150

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