Study of experimental simulation of V-shaped divertor in ELM

• Project/Area Number: 21560858
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Nuclear fusion studies
• Research Institution: Tokai University
• Principal Investigator: TONEGAWA Akira 東海大学, 理学部, 教授 (90197905)
• Project Period (FY): 2009 – 2011
• Project Status: Completed (Fiscal Year 2011)
• Budget Amount: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000); Fiscal Year 2011: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2010: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000); Fiscal Year 2009: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
• Keywords: プラズマ / 壁相互作用 / ダイバータ / ELM / ダイバータ模擬装置 / 衝突輻射モデル / 高エネルギー電子 / 水素原子のBalmer系列 / 非接触プラズマ / 再結合量 / パルスプラズマ / V字ダイバータ / バルマー系列 / 発光強度 / デタッチプラズマ / 熱負荷低減 / 核融合 / 閉ダイバータ / V字ターゲット / 熱負荷 / 電子の分布関数

Research Abstract

In this study, the experimental observation of the time evolution of electron density ne, electron temperature T_e, electron velocity distribution function. f_e(υ), and hydrogen Balmer series spectra in hydrogen recombination plasma have been carried out in a liner plasma device. The value of n_e, T_e, f_e(υ), and hydrogen Balmer series spectra is found to depend on gas pressure in the recombination plasma with pulse plasma flow. The high energy electrons in the pulse plasma flow are influenced by the time evolution of the Balmer series spectra. The transient behavior of the recombination plasma with pulse plasma flow has been studied by observing the short double minimum(negative) spike in Hα emission from the plasma. This response in Hα emission is explained by CR model taking into account of the high energy electron associated with pulse plasma flow.

Research Products

• [Journal Article] (2011)
  • Author(s): H. Matsuura, N. Inagaki, S. Kado, S. Masuzaki, A. Tonegawa
  • Journal Title: Plasma and Fusion Research Volume: 6 Pages: 2401104-2401104
  • Peer Reviewed
• [Journal Article] Neutral Particle Transport Simulation around a V-Shaped Target Using DEGAS 2 Code (2011)
  • Author(s): H.Matuura, N.Inagaki, S.Kado, S.Masuzaki, A.Tonegawa
  • Journal Title: Plasma and Fusion Research Volume: 6 Pages: 24011041-24011044
  • NAID: 130002059515
  • Peer Reviewed
• [Journal Article] (2010)
  • Author(s): T. Torada, N. Mine, H. Komukai, T. Ono, A. Tonegawa, K. Kawamura
  • Journal Title: 63rd Gaseous Electronics Conference and 7th International Conference on Reactive Plasmas Conference Proceedings Volume: 1 Pages: 217-217
• [Journal Article] (2010)
  • Author(s): T. Iijima, A. Tonegawa, T. Ono, T. Torada, K. Kawamura
  • Journal Title: 63rd Gaseous Electronics Conference and 7th International Conference on Reactive Plasmas Conference Proceedings Volume: 1 Pages: 220-220
• [Journal Article] Time-dependent of recombining Plasma with Pulse Plasma flow (2010)
  • Author(s): T.Torada, N.Mine, H.Komukai, T.Ono, A.Tonegawa, K.Kawamura
  • Journal Title: 63rd Gaseous Electronics Conference and 7th International Conference on Reactive Plasmas Conference Proceedings Volume: 1 Pages: 217-218
• [Journal Article] VUV spectroscopic diagnostics of the vibrational temperature to the ground state of hydrogen molecules in recombination plasma (2010)
  • Author(s): T.Iijima, A.Tonegawa, T.Ono, T.Torada, K.Kawamura
  • Journal Title: 63rd Gaseous Electronics Conference and 7th International Conference on Reactive Plasmas Conference Proceedings Volume: 1 Pages: 220-221
• [Journal Article] Modeling of Hydrogen Negative Ions in Sheet Plasma (2010)
  • Author(s): H.Komukai, A.Tonegawa, T.Torada, T.Ono, K.Kawamura
  • Journal Title: 63rd Gaseous Electronics Conference and 7th International Conference on Reactive Plasmas Conference Proceedings Volume: 1 Pages: 110-111
• [Journal Article] (2009)
  • Author(s): Nakanowatari, A. Tonegawa, T. Shibuya, K Kawamura
  • Journal Title: Journal of Nuclear Materials
  • Peer Reviewed
• [Journal Article] Characteristics of vibrational temperature of hydrogen molecules in detached plasma (2009)
  • Author(s): A.Nakanowatari
  • Journal Title: Journal of Nuclear Materials 390-391 Pages: 311-314
  • Peer Reviewed
• [Presentation] Time-dependence of Ballmer series emission intensity during pulse plasma flow in divertor simulator TPD-SheetIV (2011)
  • Author(s): N.Mine, T.Iijima, H.Komukai, A.Tonegawa. K.Kawamura, K.Sato
  • Organizer: 21st International Ioki Conference
  • Place of Presentation: Ceratopia Toki, Gijfu、Japan
  • Year and Date: 2011-11-29
• [Presentation] Effect of divertor target geometry on detached plasma in divertor simulator TPD-SheetIV (2011)
  • Author(s): T.Iijima, A.Tonegawa, H.Komukai, N.Mine, K.Kawamura, K.Sato
  • Organizer: 21st International Toki Conference
  • Place of Presentation: eratopia Toki, Gijfu、Japan
  • Year and Date: 2011-11-29
• [Presentation] Effect of divertor target geometry on detached plasma (2011)
  • Author(s): H.Komukai, A.Tonegawa, T.Iijima, N.Mine, K.Kawamura, K.Sato
  • Organizer: 8th General Scientific Assembly of the Asia Plasma and Fusion Association in 2011 (APFA2011)
  • Place of Presentation: Guilin, China
  • Year and Date: 2011-11-01
• [Presentation] Transient behavior of recombining plasma during pulse plasma flow in divertor simulator TPD-SheetIV (2011)
  • Author(s): T.Iijima, A.Tonegawa, N.Mine, H.Komukai, K.Kawamura, K.Sato
  • Organizer: 8th General Scientific Assembly of the Asia Plasma and Fusion Association in 2011 (APFA2011)
  • Place of Presentation: Guilin, China
  • Year and Date: 2011-11-01
• [Presentation] (2011)
  • Author(s): T. Iijima, A. Tonegawa, N. Mine, H. Komukai, K. Kawamura, K. Sato
  • Organizer: 18^<th> International Colloquium on Plasma Processes(CIP2011)
  • Place of Presentation: France
• [Presentation] (2011)
  • Author(s): T. Iijima, A. Tonegawa, N. Mine, H. Komukai, K. Kawamura, K. Sato
  • Organizer: 8^<th> General Scientific Assembly of the Asia Plasma and Fusion Association in 2011(APFA2011)
• [Presentation] (2011)
  • Author(s): A. Tonegawa, T. Iijima, H. Komukai, K. Kawamura, K. Sato
  • Organizer: 18^<th> International Colloquium on Plasma Processes(CIP2011)
  • Place of Presentation: France
• [Presentation] (2011)
  • Author(s): T. Iijima, A. Tonegawa, H. Komukai, K. Kawamura, K. Sato
  • Organizer: 21^<st> International Toki Conference
• [Presentation] (2011)
  • Author(s): N. Mine T. Iijima, H. Komukai, A. Tonegawa, K. Kawamura, K. Sato
  • Organizer: 21^<st> International Toki Conference
• [Presentation] (2011)
  • Author(s): H. Komukai, A. Tonegawa, T. Iijima, N. Mine, K. Kawamura, K. Sato
  • Organizer: 8^<th> General Scientific Assembly of the Asia Plasma and Fusion Association in 2011(APFA2011)
• [Presentation] (2011)
  • Author(s): N. Mine, T. Iijima, H. Komukai, A. Tonegawa, K. Kawamura, K. Sato
  • Organizer: 21th International Toki Conference
• [Presentation] V字ターゲットを用いた接触ガス種変化でのでタッチプラズマの特性 (2010)
  • Author(s): 小向広泰、乕田貴司、利根川昭、河村和孝、佐藤浩之助
  • Organizer: 第27回プラズマ・核融合学会念会
  • Place of Presentation: 北海道大学学術交流会館
  • Year and Date: 2010-12-03
• [Presentation] Effect of divertor target geometry on detached plasma (2010)
  • Author(s): A.Tonegawa, T.Torada, H.Komukai, N.MineT.Ono, k.Kawamura
  • Organizer: 26th Symposium on Fusion Technology
  • Place of Presentation: Porto, Portugal
  • Year and Date: 2010-09-29
• [Presentation] (2010)
  • Author(s): T. Torada, N. Mine, H. Komukai, T. Ono, A. Tonegawa, K. Kawamura
  • Organizer: 7th ICRP(International Conference on Reactive Plasmas)
  • Place of Presentation: Paris, France
• [Presentation] (2010)
  • Author(s): H. Komukai, A. Tonegawa, T. Torada, K. Kawamura
  • Organizer: 7th ICRP(International Conference on Reactive Plasmas)
  • Place of Presentation: Paris, France
• [Presentation] (2010)
  • Author(s): T. Torada, N. Mine, H. Komukai, T. Ono, A. Tonegawa, K. Kawamura
  • Organizer: 20th International Toki Conference
  • Place of Presentation: Gifu, Japan
• [Presentation] (2010)
  • Author(s): A. Tonegawa, T. Torada, H. Komukai, T. Ono, and K. Kawamura
  • Organizer: 26th SOFT(Symposium on Fusion Technology)
  • Place of Presentation: Porto, Portugal
• [Presentation] Design study of V-shaped target in divertor simulator TPD-SheetIV (2009)
  • Author(s): A.Tonegawa
  • Organizer: 19^<th> International Toki Conference on Advanced Physics in Plasma and Fusion Research
  • Place of Presentation: Ceratopia Toki, Toki-City, Gifu, Japan
  • Year and Date: 2009-12-09
• [Presentation] Selective removal of helium by ICR heating in sheet plasma (2009)
  • Author(s): S.Yasuda
  • Organizer: 19^<th> International Toki Conference on Advanced Physics in Plasma and Fusion Research
  • Place of Presentation: Ceratopia Toki, Toki-City, Gifu, Japan
  • Year and Date: 2009-12-09
• [Presentation] (2009)
  • Author(s): A. Tonegawa, T. shibata, T. Torada, H. kom urai, N. Mine, T. Ono, K. kawamura
  • Organizer: 19th International Toki Conference
  • Place of Presentation: Gifu, Japan
• [Remarks]
• [Remarks]
  • URL: http://www.sp.u-tokai.ac.jp/~tone/
• [Remarks]
  • URL: http://www.sp.u-tokai.ac.jp/~tone/
• [Remarks]
  • URL: http://www.sp.u-tokai.ac.jp/~tone/