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Solid target boronization in the Tokamak de Varennes: a technique for real-time boronization

Y. Hirooka, C. Boucher, R.W. Conn, P. Couture, B.C. Gregory, M. Khandagle, E. Knystautas, T. Matsuda, R.W. Paynter, G.G. Ross1992年被引用 13Nuclear FusionIF 3出版社

A new boronization technique, called solid target boronization (STB), has been developed and successfully applied in the Tokamak de Varennes. For this technique, a boronized carbon-carbon composite material is used as a source of boron and is exposed directly to confinement plasmas in order to induce boron emission due to thermal evaporation and sputtering. The STB technique can provide real-time boronization effects by implementing self-reconstructing boron-carbon coatings. A significant decrease in impurity radiation due to oxygen as well as several metals has been observed. Also, the fuelling rate increases considerably during STB, which is attributed to codeposition of carbon, boron and hydrogen

日本語訳

固体ターゲットボロナイゼーション(STB)と呼ばれる新しいボロナイゼーション技術が開発され、トカマク・ド・バレンヌにおいて成功裏に適用された。この技術では、ホウ素源としてボロン化炭素-炭素複合材料が使用され、熱蒸発およびスパッタリングによるホウ素放出を誘起するために閉じ込めプラズマに直接曝露される。STB技術は、自己再構築型ボロン-炭素コーティングを実装することにより、リアルタイムのボロナイゼーション効果を提供することができる。酸素および数種類の金属による不純物放射の顕著な減少が観測された。また、STB中には燃料供給率がかなり増加し、これは炭素、ホウ素、水素の共堆積に起因するものと考えられる。

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