Particle release phenomena from vacuum wall materials in fusion devices.

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  • 核融合装置における真空技術　ＩＶ　　炉壁材料―ガス放出を中心とした真空材料
  • カク ユウゴウ ソウチ ニ オケル シンクウ ギジュツ 4 ロヘキ ザイリョウ

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Abstract

Many low-Z materials such as graphite, carbide, oxide, nitride and mixed compounds have been recently developed for the application to reactor wall. In this review particle release phenomena on such wall materials which are related to thermal gas desorption, chemical erosion, radiation induced evaporation and hydrogen isotope exchange desorption are introduced. Surface modification of vacuum wall by low-Z material deposition is one of recent topics. In-situ carbon coating by RF glow discharge in mixture gas of CH4 and D2 or H2 in TEXTOR is a demonstration to achieve impurity free plasma. Hydrogen release from the carbon film is discussed.

Journal

  • Kakuyūgō kenkyū

    Kakuyūgō kenkyū 55 (4), 329-346, 1986

    The Japan Society of Plasma Science and Nuclear Fusion Research

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