Development of a peripheral plasma transport model to estimate a divertor plasma of herical DEMO reactor

• Project/Area Number: 16K18340
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Nuclear fusion studies
• Research Institution: National Institute for Fusion Science
• Principal Investigator: Kawamura Gakushi 核融合科学研究所, ヘリカル研究部, 助教 (70509520)
• Project Period (FY): 2016-04-01 – 2020-03-31
• Project Status: Completed (Fiscal Year 2019)
• Budget Amount: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000); Fiscal Year 2018: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000); Fiscal Year 2017: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000); Fiscal Year 2016: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
• Keywords: 磁場閉じ込め核融合 / 周辺プラズマ / 輸送モデリング / 中性粒子 / 不純物 / LHD / プラズマ壁相互作用 / FFHR / 核融合 / プラズマ輸送 / モデリング

Outline of Final Research Achievements

Significant improvements on quantitative estimations of peripheral plasma distribution and impurity radiation power have been obtained. They are essential progresses toward a peripheral plasma modeling needed for design studies of a fusion DEMO reactor. A scaled up model of Large Herical Device (LHD) relevant to a DEMO reactor was investigated, and a significant difference in electron density distribution in the radial direction because of neutral-plasma interactions. It is suggested that particle control method with external device such as a vacuum pump should be developed to sustain the core plasma distribution.

Academic Significance and Societal Importance of the Research Achievements

持続可能なエネルギー源として期待される核融合発電炉を設計するにあたって必要となる、磁場閉じ込めプラズマの予測精度向上に資する研究である。工学的な制約が厳しいと言われているダイバータを対象に、現在の実験装置の計測を複数使って、定量性のあるプラズマの推定手法を開発した。本研究が、複数の形式の異なる装置に対するプラズマ予測研究へとつながった点、発電炉規模の装置と現在の実験装置との間にどのような違いがあるかを考察可能にした点も重要である。

Research Products

• [Int'l Joint Research] Max-Planck IPP(ドイツ)
• [Int'l Joint Research] University of WisconsinMadison(米国)
• [Int'l Joint Research] Max-Planck-Institute for Plasma Physics/Forschungszentrum Juelich(ドイツ)
• [Int'l Joint Research] University of Wisconsin Madison(米国)
• [Int'l Joint Research] Dalian University of Technology(中国)
• [Int'l Joint Research] Max-Planck-Institute for Plasma Physics/Forschungszentrum Juelich(ドイツ)
• [Int'l Joint Research] University of Wisconsin-Madison(米国)
• [Int'l Joint Research] 大連理工大学(中国)
• [Int'l Joint Research] マックスプランクプラズマ物理研究所(ドイツ)
• [Int'l Joint Research] 大連理工大学/中国科学院プラズマ物理研究所(中国)
• [Journal Article] First EMC3-EIRENE modelling of JT-60SA edge plasmas with/without resonant magnetic perturbation field (2020)
  • Author(s): Tanaka H.、Kawamura G.、Hoshino K.、Kobayashi M.、Matsunaga G.、Suzuki Y.、Lunt T.、Feng Y.、Ohno N.
  • Journal Title: Contributions to Plasma Physics Volume: - Issue: 5-6 Pages: 1-8
  • DOI: 10.1002/ctpp.201900114
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] First Application of 3D Peripheral Plasma Transport Code EMC3-EIRENE to Heliotron J (2019)
  • Author(s): MATOIKE Ryota、KAWAMURA Gakushi、OHSHIMA Shinsuke、KOBAYASHI Masahiro、SUZUKI Yasuhiro、NAGASAKI Kazunobu、MASUZAKI Suguru、KOBAYASHI Shinji、YAMAMOTO Satoshi、KADO Shinichiro、MINAMI Takashi、OKADA Hiroyuki、KONOSHIMA Shigeru、MIZUUCHI Toru、TANAKA Hirohiko、MATSUURA Hiroto、FENG Yuhe、FRERICHS Heinke
  • Journal Title: Plasma and Fusion Research Volume: 14 Issue: 0 Pages: 3403127-3403127
  • DOI: 10.1585/pfr.14.3403127
  • NAID: 130007730088
  • ISSN: 1880-6821
  • Year and Date: 2019-09-25
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] First application of 3D peripheral plasma transport code EMC3-EIRENE to Heliotron J (2019)
  • Author(s): R. Matoike, G. Kawamura, S. Ohshima, M. Kobayashi, Y. Suzuki, K. Nagasaki, S. Masuzaki, S. Kobayashi, S. Yamamoto, S. Kado, T. Minami, H. Okada, S. Konoshima, T. Mizuuchi, H. Tanaka, H. Matsuura, Y. Feng, H. Frerichs
  • Journal Title: Plasma and Fusion Research Volume: 印刷中
  • NAID: 130007730088
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Application of EMC3-EIRENE to Estimation of Influence of a Liquid Metal Limiter on an LHD-Type Fusion Plasma (2018)
  • Author(s): Kawamura G., Miyazawa J., Goto T., Shoji M., Masuzaki S., Suzuki Y., Feng Y.
  • Journal Title: Plasma and Fusion Research Volume: 13 Issue: 0 Pages: 3403034-3403034
  • DOI: 10.1585/pfr.13.3403034
  • NAID: 130007396422
  • ISSN: 1880-6821
  • Year and Date: 2018-04-24
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Three-dimensional impurity transport modeling of neon-seeded and nitrogen-seeded LHD plasmas (2018)
  • Author(s): G. Kawamura, H. Tanaka, K. Mukai, B. Peterson, S.Y. Dai, S. Masuzaki, M. Kobayashi, Y. Suzuki, Y. Feng
  • Journal Title: Plasma Physics and Controlled Fusion Volume: 60 Issue: 8 Pages: 084005-084005
  • DOI: 10.1088/1361-6587/aac9ea
  • NAID: 120007167593
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Toroidally symmetric/asymmetric effect on the divertor flux due to neon/nitrogen seeding in LHD (2017)
  • Author(s): Tanaka H., Kawamura G., Masuzaki S., Kobayashi M., Akiyama T., Peterson B.J., Mukai K., Sano R., Dai S.Y., Sakamoto R., Morisaki T., Ohno N.
  • Journal Title: Nuclear Materials and Energy Volume: 12 Pages: 241-246
  • DOI: 10.1016/j.nme.2016.12.020
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] A Particle-In-Cell approach to particle flux shaping with a surface mask (2017)
  • Author(s): G. Kawamura, N. Ohno, S. Takamura and Y. Tomita
  • Journal Title: Nuclear Materials and Energy Volume: 印刷中 Pages: 297-301
  • DOI: 10.1016/j.nme.2016.12.017
  • Peer Reviewed / Open Access
• [Presentation] Reconstruction of Radiation Profile of Neon-Seeded LHD Plasma from Bolometer Measurements with the Aid of EMC3-EIRENE (2019)
  • Author(s): G. Kawamura, K. Mukai, B. Peterson, T. Oishi, Y. Feng
  • Organizer: 28th International Toki Conference on Plasma and Fusion Research
  • Int'l Joint Research
• [Presentation] Reconstruction of Radiation Profile of Neon-Seeded LHD Plasma from Bolometer Measurements with the Aid of EMC3-EIRENE (2019)
  • Author(s): G. Kawamura, K. Mukai, B. Peterson, T. Oishi, Y. Feng
  • Organizer: プラズマ・核融合学会 第36回年会
• [Presentation] EMC3-EIRENE Modeling of the peripheral plasmas with various magnetic configurations in Heliotron J (2019)
  • Author(s): Ryota MATOIKE, Gakushi KAWAMURA, Shinsuke OHSHIMA, Yasuhiro SUZUKI, Masahiro KOBAYASHI, Suguru MASUZAKI, Shinji KOBAYASHI, Shinichiro KADO, Takashi MINAMI, Hiroyuki OKADA, Toru MIZUUCHI, Shigeru KONOSHIMA, Hirohiko TANAKA, Hiroto MATSUURA, Kiyofumi MUKAI, Yuhe, FENG, Heinke FRERICHS, Kazunobu NAGASAKI
  • Organizer: 17th International Workshop on Plasma Edge Theory in Fusion Devices
  • Int'l Joint Research
• [Presentation] EMC3-EIRENE Modeling of the Peripheral Plasmas with Various Magnetic Configurations in Heliotron J (2019)
  • Author(s): Ryota MATOIKE, Gakushi KAWAMURA, Shinsuke OHSHIMA, Yasuhiro SUZUKI, Masahiro KOBAYASHI, Suguru MASUZAKI, Shinji KOBAYASHI, Shinichiro KADO, Takashi MINAMI, Hiroyuki OKADA, Toru MIZUUCHI, Shigeru KONOSHIMA, Hirohiko TANAKA, Hiroto MATSUURA, Kiyofumi MUKAI, Yuhe, FENG, Heinke FRERICHS, Kazunobu NAGASAKI
  • Organizer: 22nd International Stellarator and Heliotron Workshop 2019
  • Int'l Joint Research
• [Presentation] EMC3-EIRENE modeling of JT-60SA edge plasmas with/without RMP field (2019)
  • Author(s): H. Tanaka, G. Kawamura, K. Hoshino, M. Kobayashi, G. Matsunaga, L. Lunt, Y. Feng, and N. Ohno
  • Organizer: 17th International Workshop on Plasma Edge Theory in Fusion Devices
  • Int'l Joint Research
• [Presentation] Impurity transport analysis in LHD divertor plasma with neon gas puff (2018)
  • Author(s): G. Kawamura, H. Tanaka, K. Mukai, B. Peterson, S.Y. Dai, S. Masuzaki, M. Kobayashi, Y. Suzuki, Y. Feng
  • Organizer: 27th International Toki Conference,
  • Int'l Joint Research
• [Presentation] Impurity transport analysis in LHD divertor plasma with neon gas puff (2018)
  • Author(s): G. Kawamura, H. Tanaka, K. Mukai, B. Peterson, S.Y. Dai, S. Masuzaki, M. Kobayashi, Y. Suzuki, Y. Feng
  • Organizer: プラズマ・核融合学会 第35回年会
• [Presentation] Modeling study on three-dimensional impurity transport in impurity-seeded LHD plasmas (2017)
  • Author(s): KAWAMURA Gakushi
  • Organizer: 21st International Stellarator-Heliotron Workshop
  • Int'l Joint Research
• [Presentation] Application of EMC3-EIRENE to Estimation of Influence of a Liquid Metal Limiter on an LHD-Type Fusion Plasma (2017)
  • Author(s): KAWAMURA Gakushi
  • Organizer: 26th International Toki Conference
  • Int'l Joint Research
• [Presentation] LHD不純物パフ放電における三次元不純物輸送のモデリング研究 (2017)
  • Author(s): 河村学思
  • Organizer: Plasma Conference 2017
• [Presentation] A Particle-In-Cell approach to particle flux shaping with a surface mask (2016)
  • Author(s): G. Kawamura, N. Ohno, S. Takamura, Y. Tomita
  • Organizer: The 22nd International Conference on Plasma Surface Interactions in Controlled Fusion Devices
  • Place of Presentation: ローマ（イタリア）
  • Year and Date: 2016-05-30
  • Int'l Joint Research