Experimental Study on in-vessel tritium inventory in complicated environment of fusion reactors

2009 Fiscal Year Self-evaluation Report

• Project Area: Tritium Science and Technology for Fusion Reactor
• Project/Area Number: 19055003
• Research Category: Grant-in-Aid for Scientific Research on Priority Areas
• Allocation Type: Single-year Grants
• Review Section: Science and Engineering
• Research Institution: Osaka University
• Principal Investigator: UEDA Yoshio Osaka University, 大学院・工学研究科, 教授 (30193816)
• Project Period (FY): 2007 – 2011
• Keywords: 核融合 / トリチウム / プラズマ壁相互作用 / 照射損傷 / ダスト

Research Abstract

本研究は、ITER及び核融合炉に供給したトリチウムが、炉内のどこにどれだけ蓄積するかを明らかにすることである。このため核燃焼プラズマ対向壁表面の複雑環境(複数イオン(水素同位体、ヘリウム、壁材料、中性子)同時照射における、高濃度トリチウム蓄積過程をイオンビーム装置やプラズマ装置を用いた基礎実験、及びトカマク型プラズマ閉じこめ装置による実機実験により明らかにする。さらに、実験研究と、A02班のシミュレーション研究を連携させて、核融合炉内のトリチウム蓄積量を予測し、その制御法を開発する。

Research Products

• [Journal Article] Effects of helium ions on hydrogen isotope behavior in tungsten (2009)
  • Author(s): Y. Ueda, H. Kashiwagi, M. Fukumoto, Y. Ohtsuka, N. Yoshida
  • Journal Title: Fusion Science and Technology Vol.56 Pages: 85-90
  • Peer Reviewed
• [Journal Article] Development of Divertor Plasma Simulator with High Heat Flux Plasma and its Application to Nuclear Fusion Study: A Review (2009)
  • Author(s): N. Ohno, S. Kajita, M. Takagi, S. Takamura
  • Journal Title: Transaction on electrical and electronic engineering IEEJ Trans. Vol.4 Pages: 476-487
  • Peer Reviewed
• [Journal Article] Radiation Process of carbon ions in JT-60U detached divertor plasmas (2009)
  • Author(s): T. Nakano, H. Kubo, N. Asakura, K. Shimizu, H. Kawashima, S. Higashijima
  • Journal Title: Journal of Nuclear Materials Vol.390-391 Pages: 255-258
  • Peer Reviewed
• [Journal Article] Tritium removal by isotropic exchange (2009)
  • Author(s): T. Tanabe, K. Shugiyama, T. Shibahara, Y. Hirohata, M. Yoshida, K. Masaki, M. Sato
  • Journal Title: Journal of Nuclear Materials Vol.390-391 Pages: 705-708
  • Peer Reviewed
• [Journal Article] Reduction of hydrogen and helium retention in stainless steel by argon glow discharge (2008)
  • Author(s): T. Hino, Y. Higashi, Y. Yamauchi, A. Komori, et al.
  • Journal Title: Vacuum Vol.83 Pages: 493-496
  • Peer Reviewed
• [Presentation] Tungsten R&D needs for ITER and DEMO (2009)
  • Author(s): Y. Ueda
  • Organizer: Asia Plasma Fusion Association 2009
  • Place of Presentation: Aomori(Japan)
  • Year and Date: 20091027-20091029
• [Presentation] Material Mixing of tungsten with low Z materials-Carbon and Helium- (2009)
  • Author(s): Y. Ueda
  • Organizer: ITER Summer School 2009 - Plasma Surface Interaction in Controlled Fusion Devices-
  • Place of Presentation: Aix en Provence(France)
  • Year and Date: 20090622-20090626
• [Presentation] Tritium issues in plasma wall interactions (2009)
  • Author(s): T. Tanabe
  • Organizer: ITER Summer School 2009 - Plasma Surface Interaction in Controlled Fusion Devices-
  • Place of Presentation: Aix en Provence(France)
  • Year and Date: 20090622-20090626
• [Presentation] Status of plasma facing material studies and issues toward DEMO (2008)
  • Author(s): Y. Ueda
  • Organizer: 18th International Toki Conference
  • Place of Presentation: Toki (Japan)
  • Year and Date: 20081209-20081212
• [Presentation] Effects of tungsten surface conditions on carbon deposition (2008)
  • Author(s): Y. Ueda, T. Tanabe, N. Ohno, et al.
  • Organizer: 18th International Conference on Plasma Surface Interactions
  • Place of Presentation: Toledo (Spain)
  • Year and Date: 20081013-20081018
• [Presentation] Balance of ionization and recombination of carbon ions in high density peripheral plasmas of the JT-60U tokamak (2008)
  • Author(s): T. Nakano, H. Kubo, N. Asakura, K. Shimizu
  • Organizer: 6th International Conference on Atomic and Molecular Data and their Applications
  • Place of Presentation: Beijing(China)
  • Year and Date: 20080000