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Report No.

Study on ageing behavior of peprocessing plants, 8; Hydrogen formation by Irradiation and hydrogen adsorption of titanium in nitrate solutions

Motooka, Takafumi; Yamamoto, Masahiro ; Ueno, Fumiyoshi  ; Ishijima, Yasuhiro ; Uchiyama, Gunzo ; Nojima, Yasuo*; Fujine, Sachio*; Sakai, Junichi*; Shiimori, Fusae*; Miyasaka, Yuto*

As a part of studies on ageing behavior of reprocessing plants, the amount of hydrogen gas generated from nitrate solutions under $$gamma$$ irradiation and the amount of hydrogen absorbed to titanium alloy were measured after $$gamma$$ irradiation in order to evaluate the hydrogen degradation of instruments made of titanium alloy. The amount of hydrogen gas was decreased with increase of nitrate concentration. Only a little hydrogen was absorbed to titanium. It is necessary to consider the long-time prediction model for hydrogen adsorption to evaluate hydrogen degradation.



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