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Report No.

A Study of appropriate physical protection measures for the radioactive waste in consideration of US regulations and others

Tazaki, Makiko ; Iwamoto, Tomonori*; Suda, Kazunori ; Shimizu, Ryo ; Tamai, Hiroshi ; Kokaji, Lisa

As to states determination on physical protection measures of nuclear material and nuclear facilities against unauthorized removal of nuclear material, International Atomic Energy (IAEA) makes recommendation of states to follow a Table which sets out three different categories-based physical protection measures. Primary factors of such categories are isotope, quantity and radiation of nuclear material. On the other hand, in the US, attractiveness of nuclear material including physical form and degree of dilution of special nuclear material (SNM) are also primary determining factors of physical protection measures, in addition to IAEAs primary factors. Focusing on SMN within radioactive waste, authors carried out a study on optimization of physical protection measures for the radioactive waste, using the IAEA Implementing Guide and the US regulations as references.



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