Fundamental behavior of damage on tungsten divertor plate by ELM and optimization of materials

• Project/Area Number: 18360443
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Nuclear fusion studies
• Research Institution: Kyushu University
• Principal Investigator: TOKUNAGA Kazutoshi Kyushu University, 応用力学研究所, 准教授 (40227583)
• Co-Investigator(Kenkyū-buntansha): SAKAMOTO Mizuki 九州大学, 応用力学研究所, 准教授 (30235189) ; EZATO Koichiro 独立行政法人日本原子力研究開発機構, 研究員 (30354624) ; SUZUKI Satoshi 独立行政法人日本原子力研究開発機構, 研究員 (60354619) ; TANIGAWA Hisashi 独立行政法人日本原子力研究開発機構, 研究員 (70370426)
• Project Period (FY): 2006 – 2009
• Project Status: Completed (Fiscal Year 2009)
• Budget Amount: ¥16,770,000 (Direct Cost: ¥15,000,000、Indirect Cost: ¥1,770,000); Fiscal Year 2009: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000); Fiscal Year 2008: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000); Fiscal Year 2007: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000); Fiscal Year 2006: ¥9,100,000 (Direct Cost: ¥9,100,000)
• Keywords: プラズマ・核融合 / タングステン / 高熱負荷 / 水素同位体 / ヘリウム / 核融合 / プラズマ・壁相互作用 / ダイバータ / パルス高熱負荷 / パルス負荷

Research Abstract

Pulse high heat loading experiment, high heat flux hydrogen/helium irradiation experiment, low energy and high flux deuterium/helium irradiation experiment have been carried out to investigate surface modification on tungsten due to the ITER ELM like loading. Modification of surface and cross section, microstructure change, hydrogen and helium retention and optical property change have been investigated. In addition, new developed tungsten materials have been fabricated and its heat and particle loading properties have been evaluated and optimization on tungsten materials has been carried out.

Research Products

• [Journal Article] Development of High-Power-Density Ion Beam System with High-Repetition Pulse Operation (2010)
  • Author(s): H. Sakakita, S. Kiyama, H. Koguchi, Y. Hirano, T. Shimad, M. Tokitani, N. Yoshida, K. Tokunaga
  • Journal Title: Proceedings of ITC19 (in press)
  • NAID: 130000669095
  • Peer Reviewed
• [Journal Article] Microscopic Deformation of Tungsten Surfaces by High Energy and High Flux Helium/Hydrogen Particle Bombardment with Short Pulses (2010)
  • Author(s): M. Tokitani, N. Yoshida, K. Tokunaga, H. Sakashita, S. Kiyama, H. Koguchi, Y. Hirano, S. Masuzaki
  • Journal Title: Plasma and Fusion Research Vol.5
  • NAID: 130000264067
  • Peer Reviewed
• [Journal Article] Microscopic Deformation of Tungsten Surfaces by High Energy and High Flux Helium/Hydrogen Particle Bombardment with Short Pulses (2010)
  • Author(s): M.Tokitani, N.Yoshida, K.Tokunaga, H.Sakashita, S.Kiyama, H.Koguchi, Y.Hirano, S.Masuzaki
  • Journal Title: Plasma and Fusion Research 5
  • NAID: 130000264067
  • Peer Reviewed
• [Journal Article] Development of High-Power-Density Ion Beam System with High-Repetition Pulse Operation (2010)
  • Author(s): H.Sakakita, S.Kiyama, H.Koguchi, Y.Hirano, T.Shimad, M.Tokitani, N.Yoshida, K.Tokunaga
  • Journal Title: Proceedings of ITC19, 2009 (in press)
  • NAID: 130000669095
  • Peer Reviewed
• [Journal Article] Surface modification of tungsten mirrors due to low-energy helium plasma irradiation in the compact PWI simulator APSEDAS (2009)
  • Author(s): M. Sakamoto, T. Miyazaki, Y. Higashizono, K. Ogawa, K. Ozaki, N. Ashikawa, M. Tokitani, T. Shoji, S. Masuzaki, K. Tokunaga, K. Ohya, A. Sagara, N. Yoshida, K.N. Sato
  • Journal Title: Physica Scripta T138
  • Peer Reviewed
• [Journal Article] Optical Property Change on Metallic Mirror Materials by Low Energy Helium Irradiation (2009)
  • Author(s): K. Tokunaga, T. Fujiwara, N. Yoshida, A. Ebihara, M. Tokitani, A. Sagara, S. Nagata, B. Tsuchiya
  • Journal Title: Journal of Plasma and Fusion Research SERIES Vol.8 Pages: 1374-1378
  • Peer Reviewed
• [Journal Article] Effects of high heat flux hydrogen and helium mixture beam irradiation on surface modification and hydrogen retention in tungsten materials (2009)
  • Author(s): K. Tokunaga, T. Fujiwara, K. Ezato, S. Suzuki, M. Akiba, H. Kurishita, S. Nagata, B. Tsuchiya, A. Tonegawa, N. Yoshida
  • Journal Title: Journal of Nuclear Material Vol.390-391 Pages: 916-920
  • Peer Reviewed
• [Journal Article] The effects of high fluence mixed-species (deuterium, helium, beryllium) plasma interactions with tungsten (2009)
  • Author(s): M.J. Baldwin, R.P. Doerner, D. Nishijima, K. Tokunaga, Y. Ueda
  • Journal Title: Journal of Nuclear Materials 390-391 Pages: 886-890
  • Peer Reviewed
• [Journal Article] Optical Property Change on Metallic Mirror Materials by Low Energy Helium Irradiation (2009)
  • Author(s): K.Tokunaga, T.Fujiwara, N.Yoshida, A.Ebihara, M.Tokitani, A.Sagara, S.Nagata, B.Tsuchiya
  • Journal Title: Journal of Plasma and Fusion Research SERIES 8
  • Peer Reviewed
• [Journal Article] Surface modification of tungsten mirrors due to low-energy helium plasma irradiation in the compact PWI simulator APSEDAS (2009)
  • Author(s): M.Sakamoto, T.Miyazaki, Y.Higashizono, K.Ogawa, K.Ozaki, N.Ashikawa, M.Tokitani, T.Shoji, S.Masuzaki, K.Tokunaga, K.Ohya, A.Sagara, N.Yoshida, K.N.Sato
  • Journal Title: Physica Scripta T138
  • Peer Reviewed
• [Journal Article] Development of tungsten materials for plasma facing components in Japan (2007)
  • Author(s): Y. Ueda Y, N. Ohno, S. Kajita, H. Kurishita, H. Iwakiri, K. Tokunaga K, N. Yoshida
  • Journal Title: FUSION SCIENCE AND TECHNOLOGY Volume:52Issue:3 Pages: 513-520
  • Peer Reviewed
• [Journal Article] Effects of helium implantation on damage during pulsed high heat loading of tungsten (2007)
  • Author(s): K.Tokunaga, T.Fujiwara, K.Ezato, S.Suzuki, M.Akiba, N.Yoshida
  • Journal Title: Journal of Nuclear Materials Vol.367 Pages: 812-816
  • Peer Reviewed
• [Journal Article] Effects of helium implantation on damage during pulsed high heat loading of tungsten (2007)
  • Author(s): K.Tokunaga, T.Fujiwara K.Ezato, S.Suzuki, M.Akiba, N.Yoshida
  • Journal Title: Journal of Nuclear Materials 367 Pages: 812-816
  • Peer Reviewed
• [Journal Article] Retention properties of plasma particles in tungsten exposed to LHD divertor plasmas (2007)
  • Author(s): M.Tokitani, M.Miyamoto, K.Tokunaga, T.Fujiwara, N.Yoshida, S.Masuzaki, N, Ashikawa, T.Morisaki, M.Shoji, A.Komori, LHD Experimental Group, S.Nagata and B.Tsuchiya
  • Journal Title: Journal of Nuclear Materials 363 Pages: 443-447
  • Peer Reviewed
• [Journal Article] プラズマ溶射法による低放射化フェライトへのタングステン被覆 (2007)
  • Author(s): 八尋由樹, 徳永和俊, 佃昇, 吉田直亮, 小林明, 江里幸一郎, 鈴木哲, 秋場真人, 光原昌寿, 中島英治
  • Journal Title: プラズマ応用と複合機能材料 16 Pages: 69-72
• [Journal Article] Effects of helium implantation on damage during pulsed high heat loading of tungsten (2007)
  • Author(s): K.Tokunaga, T.Fujiwara, K.Ezato, S.Suzuki, M.Akiba, N.Yoshida
  • Journal Title: Journal of Nuclear Materials (in press)
• [Journal Article] Behavior of actively cooled mock-ups with plasma sprayed tungsten coating under high heat flux conditions (2006)
  • Author(s): K. Tokunaga, Y. Kubota, N. Noda, Y. Imamura, A. Kurumada, N. Yoshida, T. Sogabe, T. Kato, B. Schedlerm
  • Journal Title: Fusion Engineering and Design Vol81 Pages: 133-138
  • Peer Reviewed
• [Journal Article] Behavior of actively cooled mock-ups with plasma sprayed tungsten coating under high heat flux conditions (2006)
  • Author(s): K.Tokunaga, Y. Kubota, N. Noda, Y. Imamura, A. Kurumada, N. Yoshida, T. Sogabe, T. Kato, B. Schedlerm
  • Journal Title: Fusion Engineering and Design Vol.81 Pages: 133-138
  • Peer Reviewed
• [Journal Article] Behavior of actively cooled mock-ups with plasma sprayed tungsten coating under high heat flux conditions (2006)
  • Author(s): K.Tokunaga, Y.Kubota, N.Noda, Y.Imamura, A.Kurumada, N.Yoshida, T.Sogabe, T.Kato, B.Schedler
  • Journal Title: Fusion Engineering and Design 81 Pages: 133-138
• [Journal Article] Characterization of thick plasma spray tungsten coating on ferritic/martensitic steel F82H for high heat flux armor
  • Author(s): Y. Yahiro, M. Mitsuhara, K. Tokunaga, N. Yoshida, T. Hirai, K. Ezato, S. Suzuki, M. Akiba, H. Nakashima
  • Journal Title: Journal of Nuclear Materials (in press)
  • Peer Reviewed
• [Journal Article] Effects of helium implantation on damage during pulsed high heat loading of tungsten
  • Author(s): K. Tokunaga, T. Fujiwara, K. Ezato, S. Suzuki, M. Akiba, N. Yoshida
  • Journal Title: Journal of Nuclear Materials Vol.36
• [Journal Article] Effects of high heat flux hydrogen and helium mixture beam irradiation on surface modification and hydrogen retention in tungsten materials
  • Author(s): K. Tokunaga, T. Fujiwara, K. Ezato, S. Suzuki, M. Akiba, H. Kurishita, S.Nagata, B. Tsuchiya, A. Tonegawa, N. Yoshida
  • Journal Title: Journal of Nuclear Materials (in press)
  • Peer Reviewed
• [Journal Article] Characterization of thick plasma spray tungsten coating on ferritic/martensitic steel F82H for high heat flux armor
  • Author(s): Y. Yahiro, M. Mitsuhara,K. Tokunaga, N. Yoshida,T. Hirai, K. Ezato, S. Suzuki, M. Akiba, H. Nakashima
  • Journal Title: Journal of Nuclear Materials (in press)
  • Peer Reviewed
• [Journal Article] The effects of high fluence mixed-species (deuterium, helium, beryllium)plasma interactions with tungsten
  • Author(s): M. J. Baldwin a, R. P. Doerner, D. Nishijima, K. Tokunaga, Y. Ueda
  • Journal Title: Journal of Nuclear Materials (in press)
  • Peer Reviewed
• [Journal Article] Characterization of thick plasma spray tungsten coating on ferritic/martensitic steel F82H for high heat flux armor
  • Author(s): Y. Yahiro, M. Mitsuhara, K. Tokunaga, N. Yoshida, T. Hirai, K. Ezato, S. Suzuki, M. Akiba, H. Nakashima
  • Journal Title: Journal of Nuclear Materials (in press)
  • Peer Reviewed
• [Journal Article] Effects of high heat flux hydrogen and helium mixture beam irradiation on surface modification and hydrogen retention in tungsten materials
  • Author(s): K. Tokunaga, T. Fujiwara, K. Ezato, S. Suzuki, M. Akiba, H. Kurishita, S. Nagata, B. Tsuchiya, A. Tonegawa, N. Yoshida
  • Journal Title: Journal of Nuclear Materials (in press)
  • Peer Reviewed
• [Presentation] タングステン材料のパルス高熱負荷による表面損傷と損耗 (2010)
  • Author(s): 徳永和俊, 藤原正, 荒木邦明, 宮本好雄, 中村一男, 栗下裕明, 江里幸一郎, 鈴木哲, 横山堅二, 関洋治, 榎枝幹夫, 秋場真人
  • Organizer: 日本原子力学会春の年会
  • Place of Presentation: 水戸市
  • Year and Date: 2010-03-27
• [Presentation] Surface modification and erosion on newly-developed tungsten materials by pulse high heat loading (2009)
  • Author(s): K. Tokunaga, T. Fujiwara, K. Araki, Y. Miyamoto, K. Nakamura, H. Kurishita, K. Ezato, S. Suzuki, K. Yokoyama, M. Enoeda, M. Akiba
  • Organizer: Asia Plasma Fusion Association 2009
  • Place of Presentation: 青森市
  • Year and Date: 2009-10-28
• [Presentation] Nanoscopic morphology formation on tungsten induced by Be seeded D-He mixture plasma exposure (2009)
  • Author(s): K. Tokunaga, M.J. Baldwin, R.P. Doerner, D. Nishijima, H. Kurishita, T. Fujiwara, K. Araki, Y. Miyamoto, N. Ohno, Y. Ueda
  • Organizer: 14th International Conference on Fusion Reactor Material
  • Place of Presentation: 札幌市
  • Year and Date: 2009-10-28
• [Presentation] Nanoscopic morphology formation on tungsten induced by Be seeded D-He mixture plasma exposure (2009)
  • Author(s): Tokunaga, M.J.Baldwin, R.P.Doerner, D.Nishijima, H.Kurishita, T.Fujiwara, K.Araki, Y.Miyamoto, N.Ohno, Y.Ueda
  • Organizer: 14^<th> International Conference on Fusion Reactor Materials
  • Place of Presentation: 札幌市
  • Year and Date: 2009-10-28
• [Presentation] Development of high-power-density ion beam system with high repetitive pulse operation (2009)
  • Author(s): H. Sakakita, S. Kiyam, H. Koguchi, Y. Hirano, T. Shimada, M. Tokitani, N. Yoshida, K. Tokunaga
  • Organizer: International TOKI Conference
  • Place of Presentation: 土岐市(岐阜県)
• [Presentation] Nanoscopic morphology formation on tungsten induced by D-He mixture plasma exposure (2008)
  • Author(s): K. Tokunaga, M.J. Baldwin, R.P. Doerner, D. Nishijima, H. Kurishita, T. Fujiwara, K. Araki, Y. Miyamoto, N. Yoshida, N. Ohno, Y. Ueda
  • Organizer: 25th Symposium on Fusion Technology
  • Place of Presentation: Rostock(Germany)
  • Year and Date: 2008-09-17
• [Presentation] ELLIPSOMETRY MESUREMENT ON METALLIC MIRROR MATERIALS IRRADIATED WITH LOW ENERGY HELIUM ION (2008)
  • Author(s): K. Tokunaga, T. Fujiwara, N. Yoshida, A. Ebihara M. Tokitani, A. Sagara, S. Nagata, B. Tsushiya
  • Organizer: International Congress on Plasma Physics 2008
  • Place of Presentation: Fukuoka(Japan)
  • Year and Date: 2008-09-09
• [Presentation] The effects of high fluence mixed-species (deuterium, helium, beryllium) plasma interactions with tungsten (2008)
  • Author(s): M.J. Baldwin1, R.P. Doerner, D. Nishijima, K. Tokunaga, Y Ueda
  • Organizer: 18th International Conference on Plasma Surface Interactions
  • Place of Presentation: Toledo(Spain)
  • Year and Date: 2008-05-30
• [Presentation] Effects of high heat flux hydrogen and helium mixture beam irradiation on surface modificationand hydrogen retention in tungsten materials (2008)
  • Author(s): K. Tokunaga, T. Fujiwara, K. Ezato, S. Suzuki, M. Akiba, H. Kurishita, S. Nagata, B. Tsuchiya, A. Tonegawa, N. Yoshida
  • Organizer: 18th International Conference on Plasma Surface Interactions
  • Place of Presentation: Toledo(Spain)
  • Year and Date: 2008-05-30
• [Presentation] 低エネルギー・高粒子束D-He混合プラズマ照射によるタングステン材表面におけるナノ構造の形成 (2008)
  • Author(s): 徳永和俊
  • Organizer: 日本原子力学会
  • Place of Presentation: 高知工科大学
• [Presentation] 低放射化フェライト・マルテンサイト鋼へのタングステン被覆と熱・粒子負荷特性2 (2007)
  • Author(s): 徳永和俊, 藤原正, 吉田直亮, 江里幸一郎, 鈴木哲, 秋場真人
  • Organizer: 日本原子力学会「2007年秋の大会」
  • Place of Presentation: 北九州市
  • Year and Date: 2007-09-27
• [Presentation] タングステン材料の高熱流束水素・ヘリウム混合ビーム照射実験 (2007)
  • Author(s): 徳永和俊、藤原 正、吉田直亮、江里幸一郎、鈴木哲、秋場真人
  • Organizer: 日本原子力学会「2007年秋の大会」
  • Place of Presentation: 北九州市
  • Year and Date: 2007-09-27
• [Presentation] Applications of tungsten coated materials for divertor and first wall (2007)
  • Author(s): K. Tokunaga, Y. Yahiro, N. Yoshida, N. Ashikawa, S. Masuzaki, M. Tokitani, A. Komori, N. Noda, A. Kobayashi, K. Ezato, S. Suzuki, M. Akiba
  • Organizer: 2007 Japan-US Workshop on Heat Removal and Plasma Materials Interactions for Fusion, Fusion High Power Density Components and System, and IEA Workshop on Solid Surface Plasma Facing Components
  • Place of Presentation: Nara(Japan)
  • Year and Date: 2007-07-26
• [Presentation] タングステン被覆低放射化フェライト・マルテンサイト鋼の材料特性 (2007)
  • Author(s): 八尋由樹, 徳永和俊, 佃昇, 吉田直亮, 小林明, 江里幸一郎, 鈴木哲, 秋場真人, 光原昌寿, 中島英治
  • Organizer: 高温学会平成19年度春季学術講演会
  • Place of Presentation: 吹田市(大阪府)
  • Year and Date: 2007-05-30
• [Presentation] Optical property change on plasma facing materials irradiated with hydrogen isotope and helium (2007)
  • Author(s): K. Tokunaga, A. Ebihara, M. Tokitani, T. Fujiwara, N. Yoshida, K. Ezato, S. Suzuki, M. Akiba
  • Organizer: 13rd International Conference on Fusion Reactor Materials
  • Place of Presentation: Nice(France)
• [Presentation] Material Properties of Tungsten Coated F-82H Ferritic/ Martensitic Steel (2007)
  • Author(s): Y. Yahiro, K. Tokunaga, N. Yoshida, N. Tsukuda, A. Kobayashi, K. Ezato, S. Suzuki, M. Akiba, M. Mitsuhara, H. Nakashima
  • Organizer: 13rd International Conference on Fusion Reactor Materials
  • Place of Presentation: Nice(France)
• [Presentation] W/F82Hプラズマ対向材料の開発と評価 (2007)
  • Author(s): 八尋由樹, 徳永和俊, 吉田直亮, 平井武志, 小林明, 江里幸一郎, 鈴木哲, 秋場真人, 光原昌寿, 中島英治
  • Organizer: プラズマ・核融合学会第24回年会
  • Place of Presentation: 姫路市(兵庫県)
• [Presentation] 中島英治, 低放射化フェライト鋼へのタングステン被覆と熱・粒子負荷特性 (2007)
  • Author(s): 八尋由樹, 徳永和俊, 佃昇, 吉田直亮, 小林明, 江里幸一郎, 鈴木哲, 秋場真人, 光原昌寿, 中島英治
  • Organizer: 日本原子力学会春の年会
  • Place of Presentation: 名古屋市
• [Presentation] プラズマ溶射法による低放射化フェライト鋼へのタングステン被覆 (2007)
  • Author(s): 八尋由樹, 徳永和俊, 佃昇, 吉田直亮, 小林明, 江里幸一郎, 鈴木哲, 秋場真人, 光原昌寿, 中島英治
  • Organizer: プラズマ応用科学会第14会年会
  • Place of Presentation: 仙台市
• [Presentation] ヘリウム予注入されたタングステンのパルス高熱負荷による損傷 (2006)
  • Author(s): 徳永和俊, 藤原正, 吉田直亮, 江里幸一郎, 鈴木哲, 秋場真人
  • Organizer: プラズマ・核融合学会第23回年会
  • Place of Presentation: 筑波市
• [Presentation] Effects of hydrogen and helium irradiation on optical property of tungsten (2006)
  • Author(s): K. Tokunaga, K. Ezato, S. Suzuki, M. Akiba, T. Fujiwara, N. Yoshida
  • Organizer: 24th Symposium on Fusion Technology
  • Place of Presentation: Warsaw(Poland)