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Report No.

Evaluation of tritium release properties of advanced tritium breeders

Hoshino, Tsuyoshi; Ochiai, Kentaro; Edao, Yuki; Kawamura, Yoshinori

Demonstration power reactors (DEMOs) require advanced tritium breeders that have high stability at high temperatures. Therefore, the pebble fabrication of Li$$_{2}$$TiO$$_{3}$$ with excess Li (Li$$_{2+x}$$TiO$$_{3+y}$$) as an advanced tritium breeder was carried out. In this study, a preliminary examination of the tritium release properties of advanced tritium breeders was performed. DT neutron irradiation experiments were performed at the fusion neutronics source (FNS) facility in JAEA. The Li$$_{2+x}$$TiO$$_{3+y}$$ pebbles exhibited good tritium release properties similar to the Li$$_{2}$$TiO$$_{3}$$ pebbles. In particular, the released amount of HT gas for easier tritium handling was higher than that of HTO water.



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Category:Nuclear Science & Technology



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