Tritium Release from Molten FLiNaBe under Low Flux Neutron Irradiation

Release behaviors of tritium from molten FLiNaBe (LiF-NaF-BeF2) have been examined in a series of low flux neutron irradiation experiments with an AmBe neutron source at the OKTAVIAN facility of Osaka University. Tritium released from FLiNaBe is swept by He and Ar gases, and recovered by water bubbl...

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Bibliographic Details
Published in:Plasma and Fusion Research 2019/03/11, Vol.14, pp.1405044-1405044
Main Authors: KUMAGAI, Kohki, TANAKA, Teruya, NAGASAKA, Takuya, YAGI, Juro, WATANABE, Takashi, YAMAZAKI, Gaku, SATO, Fuminobu, TAMAKI, Shingo, MURATA, Isao, FUKADA, Satoshi, KATAYAMA, Kazunari, SAGARA, Akio
Format: Article
Language:English
Subjects:
AmBe neutron source
FLiNaBe
Lithium fluoride
low flux neutron
Mass transfer
molten salt
Neutron flux
Neutron irradiation
Neutrons
Tritium
tritium recovery
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Summary:Release behaviors of tritium from molten FLiNaBe (LiF-NaF-BeF2) have been examined in a series of low flux neutron irradiation experiments with an AmBe neutron source at the OKTAVIAN facility of Osaka University. Tritium released from FLiNaBe is swept by He and Ar gases, and recovered by water bubblers. The recovery rate of tritium released from 300 cm3 of FLiNaBe was 58.0 mBq/h in a steady state, and it was close to the tritium production rate of 58.0 mBq/h calculated by the MCNP6 code. The values of the overall mass transfer coefficients for tritium release from FLiNaBe were close to those for FLiNaK (LiF-NaF-KF) at 773 K. The influence of the diffusivity and the solubility of tritium on the overall mass transfer coefficients has been examined on molten FLiNaBe.
ISSN:1880-6821
1880-6821
DOI:10.1585/pfr.14.1405044