A proposal of in-situ diagnostics methods for PFMs in fusion reactors

2012 Fiscal Year Final Research Report

• Project/Area Number: 22760657
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Nuclear fusion studies
• Research Institution: Shimane University
• Principal Investigator: MIYAMOTO Mitsutaka 島根大学, 総合理工学研究科, 助教 (80379693)
• Project Period (FY): 2010 – 2012
• Keywords: プラズマ / 壁相互作用

Research Abstract

Deuterium retention properties and microstructural changes in plasma facing materials (PFMs) are systematically investigated due to mixed species D and He ions irradiation. In addition, the correlation between these surface characteristic changes and optical reflectivity is evaluated. The optical reflectivity measurement is proposed as a convenient in-situ diagnostic method to detect a real-timePFMs conditions.

Research Products

• [Journal Article] Microstructures and Deuterium-Retention Behavior of Tungsten Exposed to D+(He and/or Be) Mixture Plasmas (2013)
  • Author(s): Mitsutaka Miyamoto, Daisuke Nishijima, Matthew J. Baldwin, Russell P. Doerner, Yoshio Ueda, Akio Sagara, Hiroaki Kurishita
  • Journal Title: Materials Transactions Volume: 54 Pages: 420-424.
  • Peer Reviewed
• [Journal Article] Microscopic damage of tungsten exposed to deuterium-helium mixture plasma in PISCES and its impacts on retention property (2011)
  • Author(s): M. Miyamoto, D. Nishijima, M.J. Baldwin, R.P. Doerner, Y. Ueda, K. Yasunaga, N. Yoshida, K. Ono
  • Journal Title: Journal of Nuclear Materials Volume: 415 Pages: S657-S660
  • DOI: DOI:/10.1016/j.jnucmat.2011.01.008
  • Peer Reviewed
• [Journal Article] Evaluation of charge-exchange neutral incident parameters onto plasma-facingmaterials in LHD with material probe method (2011)
  • Author(s): M. Miyamoto, M. Tokitani, N. Ashikawa, M. Kobayashi, M. Shoji, S. Masuzaki, N. Yoshida, D. Reiter, K. Ono and the LHD experimental group
  • Journal Title: Journal of Nuclear Materials417 Volume: 417 Pages: 673-677
  • DOI: DOI:10.1016/j.jnucmat.2010.12.186
  • Peer Reviewed
• [Journal Article] Degradation of optical properties in Mo mirrors under irradiation with low energy helium and deuterium ions (2011)
  • Author(s): T. Nakano, M. Miyamoto, S. Hasuike, K. Ono, N. Yoshida
  • Journal Title: Journal of Nuclear Materials Volume: 417 Pages: 834-837
  • DOI: DOI:10.1016/j.jnucmat.2010.12.143
  • Peer Reviewed
• [Journal Article] Influence of Be seeding on microstructures of tungsten exposed to D-He mixture plasmas in PISCES and its impacts on retention properties
  • Author(s): Mitsutaka Miyamoto, Daisuke Nishijima, Matthew Baldwin, Russ Doerner, Yoshio Ueda, Akio Sagara
  • Journal Title: Journal of Nuclear Materials
  • DOI: DOI:10.1016/j.jnucmat.2013.01.030.
  • Peer Reviewed
• [Presentation] 高密度直線型プラズマ発生装置 PISCES において D-He-Be 混合プラズマ照射した W の微細組織と重水素リテンション特性 (2012)
  • Author(s): 宮本 光貴
  • Organizer: プラズマ核融合学会第29回年会(招待講演)
  • Place of Presentation: クローバープラザ(福岡)
  • Year and Date: 2012-11-29
• [Presentation] Influence of Be seeding on microstructures of tungsten exposed to D-He mixture plasmas in PISCES and its impacts on retention properties (2012)
  • Author(s): 宮本光貴
  • Organizer: 20th International Conference on Plasma Surface Interaction
  • Place of Presentation: アーヘン,ドイツ
  • Year and Date: 2012-05-22
• [Presentation] Degradation of Optical Properties in Metal Mirrors under Irradiation and Its Applicability Evaluation to In-situ Diagnostics of Microstructure Change in Plasma Facing Materials (2011)
  • Author(s): 宮本光貴
  • Organizer: 15th International Conference on Fusion Reactor Materials
  • Place of Presentation: チャールストン,アメリカ
  • Year and Date: 2011-12-18
• [Presentation] ヘリウムイオン照射したミラー材料における表面損傷の結晶方位依存 (2011)
  • Author(s): 宮本 光貴
  • Organizer: Plasma Conference 2011
  • Place of Presentation: 石川県立音楽堂(金沢
  • Year and Date: 2011-11-24
• [Presentation] D, He 複合イオン照射したタングステンにおけるガス吸蔵特性 (2010)
  • Author(s): 迫井佑己
  • Organizer: ラズマ核融合学会第27回年会
  • Place of Presentation: 北海道大学(札幌)
  • Year and Date: 2010-11-24