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Tritium Monitoring Using Magnetically-Levitated-Electrode Ionization Chambers

Hirofumi Ichiki, Toshirou Kawaguchi, Kenji Ishibashi, Nobuo Ikeda, Satoshi Fukada, Gen-ichirou Wakabayashi, Yoshiya Kawabata

Fusion Science and Technology / Volume 60 / Number 3 / October 2011 / Pages 994-997

Measurement, Monitoring, and Accountancy / Proceedings of the Ninth International Conference on Tritium Science and Technology /

We developed a high precision ionization chamber MALIC. It is an integral type ionization chamber which has a magnetically levitated electrode without being supported by insulation materials. Furthermore, the electric potential of that electrode can be read without physical contact, so that the contact noise does not occur. With MALIC, we attempted to measure the radiation dose from tritium vapor of a room air in an accelerator facility.

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