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Report No.

Analysis of iodine 129 in gaseous radioactive waste at Tokai Reprocessing Plant

Saegusa, Yu; Yamamoto, Masahiko   ; Nishida, Naoki ; Taguchi, Shigeo ; Watanabe, Nobuhisa; Inada, Satoshi; Kuno, Takehiko 

Iodine in gaseous radioactive waste at the reprocessing facility is collected on an activated charcoal filter. Iodine129 is measured by radioactive analysis using a Ge semiconductor detector. In this research, the correction method for the influence of self-absorption and iodine recovery is proposed. The influence of self-absorption is evaluated by determining the linear attenuation coefficient of activated charcoal filter. Iodine recovery on the activated charcoal filter is also evaluated by measuring $$gamma$$-ray intensity from both side of the filter.



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