Study on selective injection of a compact toroid and a supersonic gas jet, and its fueling process

2011 Fiscal Year Final Research Report

• Project/Area Number: 21360453
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Nuclear fusion studies
• Research Institution: University of Hyogo
• Principal Investigator: FUKUMOTO Naoyuki 兵庫県立大学, 大学院・工学研究科, 准教授 (90275305)
• Co-Investigator(Kenkyū-buntansha): NAGATA Masayoshi 兵庫県立大学, 大学院・工学研究科, 教授 (00192237) ; KIKUCHI Yusuke 兵庫県立大学, 大学院・工学研究科, 准教授 (00433326)
• Co-Investigator(Renkei-kenkyūsha): HANADA Kazuaki 九州大学, 応用力学研究所, 教授 (30222219) ; MIYAZAWA Junichi 核融合科学研究所, 大型ヘリカル研究部, 准教授 (50300728)
• Project Period (FY): 2009 – 2011
• Keywords: 炉心プラズマ / コンパクトトーラス / 燃料補給 / 高速ガス流

Research Abstract

We conducted an experiment to inject an accelerated compact torus(CT) plasma into a cell filled with neutral gas by using a CT injector which is a kind of magnetized coaxial plasma gun, and then attempted to promote neutralization of the CT through charge-exchange reaction to produce a high speed gas jet. As a result, a high-speed gas jet comparable to the accelerated CT has been successfully produced, although plasma partially remained. This leads to selective injection of a CT plasma and a super-sonic gas jet.

Research Products

• [Journal Article] Computation of Neutral Gas Flow Generation from a CT Neutralization Fuel-Injector (2012)
  • Author(s): T. Watanabe, T. Ohshima, T. Takahashi, N. Fukumoto, M. Nagata
  • Journal Title: Plasma and Fusion Research Volume: Vol.7 Pages: 2405042-1-4
  • DOI: DOI:10.1585/pfr.7.2405042
  • Peer Reviewed
• [Journal Article] Optimization study of super-high speed neutral particle flow injector for LHD by using CT injection technology (2011)
  • Author(s): N. Fukumoto, M. Nagata, Y. Kikuchi, T. Takahashi, S. Masamune, T. Asai, J. Miyazawa, M. Goto, H. Yamada
  • Journal Title: Annual Report of National Institute for Fusion Science Pages: 164
  • URL: http://www.nifs.ac.jp/report/annrep11/pdf/164.pdf
• [Journal Article] Experiments of Fuelling by CT Injection on QUEST (2011)
  • Author(s): N. Fukumoto, M. Nagata, Y. Kikuchi, K. Hanada
  • Journal Title: Annual Report of National Institute for Fusion Science Pages: 535
  • URL: http://www.nifs.ac.jp/report/annrep11/pdf/535.pdf
• [Journal Article] Monte Carlo Simulation on a Neutralization Process of an Accelerated Compact Torus Plasma (2010)
  • Author(s): S. Fujii, T. Ohshima, T. Takahashi, N. Fukumoto, M. Nagata
  • Journal Title: IEEE Transactions on Plasma Science Volume: Vol.38 Pages: 1473-1477
  • DOI: DOI:10.1109/TPS.2010.2045397
  • Peer Reviewed
• [Journal Article] Optimization study of super-high speed neutral particle flow injector for LHD by using CT injection technology (2010)
  • Author(s): N. Fukumoto, M. Nagata, Y. Kikuchi, T. Takahashi, S. Masamune, H. Himura, A. Sanpei, T. Takahashi, T. Asai, Y. Hirano, M. Inomoto, M. Irie, J. Miyazawa, H. Yamada, Y. Narushima
  • Journal Title: Annual Report of National Institute for Fusion Science Pages: 103
  • URL: http://www.nifs.ac.jp/report/annrep10/pdf/103.pdf
• [Journal Article] Deep Fuelling Experiments on QUEST Using CT Injection (2010)
  • Author(s): N. Fukumoto, M. Nagata, Y. Kikuchi, K. Hanada
  • Journal Title: Annual Report of National Institute for Fusion Science Pages: 534
  • URL: http://www.nifs.ac.jp/report/annrep10/pdf/534.pdf
• [Journal Article] Development of a neutral particle flow fueling system by using a compact torus plasma injector for LHD (2010)
  • Author(s): N. Fukumoto, J. Miyazawa, T. Takahashi, M. Nagata, M. Goto, T. Asai, S. Masamune, Y. Kikuchi, H. Yamada
  • Journal Title: Collection of NIFS Collaboration Research 23rd IAEA Fusion Energy Conference Pages: 319-324
  • URL: http://www.nifs.ac.jp/report/nifs1002.html
• [Presentation] 加速CTプラズマを用いた高速中性粒子フロー生成 (2011)
  • Author(s): 福本直之
  • Organizer: 平成23年度NIFS共同研究会
  • Place of Presentation: 核融合科学研究所
  • Year and Date: 2011-12-21
• [Presentation] Computation of Neutral Gas Flow Generation from a CT Neutralization Fuel-Injector (2011)
  • Author(s): T. Watanabe, T. Ohshima, T. Takahashi, N. Fukumoto, M. Nagata
  • Organizer: 21st International Toki Conference(ITC-21)
  • Place of Presentation: 岐阜県土岐市(セラトピア土岐)
  • Year and Date: 2011-11-28
• [Presentation] Change in parameters of a CT passing through a neutralization cell, and its relation to production of a neutral particle flow (2011)
  • Author(s): N. Fukumoto, J. Miyazawa, M. Goto, T. Takahashi, Y. Kikuchi, M. Nagata, T. Asai, S. Masamune, H. Yamada
  • Organizer: Plasma Conference 2011
  • Place of Presentation: 石川県金沢市(石川県立音楽堂)
  • Year and Date: 2011-11-23
• [Presentation] Computation of Neutral Gas Flow Generation from a CT Neutralization Fuel-Injector (2011)
  • Author(s): T. Watanabe, T. Ohshima, T, Takahashi, N. Fukumoto, M. Nagata
  • Organizer: Workshop on Innovation in Fusion Science(ICC2011) and US-Japan Workshop on Compact Torus Plasma
  • Place of Presentation: Seattle, WA, USA
  • Year and Date: 2011-08-18
• [Presentation] SPICA装置を用いた高速CTプラズマの中性粒子フロー化とその定量的評価 (2010)
  • Author(s): 福本直之, 宮澤順一, 後藤基志, 高橋俊樹, 菊池祐介, 永田正義, 浅井朋彦, 政宗貞男, 山田弘司
  • Organizer: 第27回プラズマ・核融合学会年会
  • Place of Presentation: 北海道札幌市(北海道大学学術交流会館)
  • Year and Date: 2010-11-30
• [Presentation] Development of a neutral particle flow fueling system by using a compact torus plasma injector for LHD (2010)
  • Author(s): N. Fukumoto, J. Miyazawa, T. Takahashi, M. Nagata, M. Goto, T. Asai, S. Masamune, Y. Kikuchi, H. Yamada
  • Organizer: 23rd IAEA Fusion Energy Conference
  • Place of Presentation: Daejon, Korea
  • Year and Date: 2010-10-12
• [Presentation] Effects of the recombination reaction on a neutralization process of an accelerated compact torus plasma (2009)
  • Author(s): T. Ohshima, T. Takahashi, N. Fukumoto, and M. Nagata
  • Organizer: The 7th General Scientific Assembly of the Asia Plasma and Fusion Association and the Asia-Pacific Plasma Theory Conference
  • Place of Presentation: Aomori, Japan
  • Year and Date: 20091027-30
• [Presentation] SPICAにおける一段CT加速実験とその応用研究の今後の予定「能動的制御による自己組織化高ベータプラズマの性能改善」 (2009)
  • Author(s): 福本直之
  • Organizer: 平成21年度NIFS共同研究会
  • Place of Presentation: 核融合科学研究所
  • Year and Date: 2009-12-25
• [Presentation] Compact toroid acceleration with a single-stage coaxial electrode and its application to fueling (2009)
  • Author(s): N. Fukumoto, J. Miyazawa, Y. Kikuchi, M. Nagata, T. Takahashi, T. Asai, T. Takahashi, S. Masamune, A. Sanpei, M. Inomoto and M. Irie
  • Organizer: 19th International Toki Conference(ITC19) on Advanced Physics in Plasma and Fusion Research
  • Place of Presentation: 岐阜県土岐市(セラトピア土岐)
  • Year and Date: 2009-12-09
• [Presentation] SPICA装置のCT生成加速部電源一段化と高速中性粒子フロー生成への応用 (2009)
  • Author(s): 福本直之, 宮澤順一, 菊池祐介, 永田正義, 高橋俊樹, 浅井朋彦, 高橋努, 政宗貞男, 三瓶明希夫, 井通暁, 入江克
  • Organizer: 第26回プラズマ・核融合学会年会
  • Place of Presentation: 京都市(京都市国際交流会館)
  • Year and Date: 2009-12-04
• [Presentation] Monte-Carlo simulation on a neutralization process of an accelerated compact torus plasma (2009)
  • Author(s): S. Fujii, T. Ohshima, T. Takahashi, N. Fukumoto, M. Nagata
  • Organizer: 21st International Conference on Numerical Simulation of Plasmas
  • Place of Presentation: Lisbon, Portuga
  • Year and Date: 2009-10-06
• [Presentation] Development of a highlyefficient fueller of fast gas jet using a compact torus injector (2009)
  • Author(s): N. Fukumoto, J. Miyazawa, Y. Kikuchi and M. Nagata
  • Organizer: US-Japan Workshop on Innovative confinement concepts based on self-organization and active control
  • Place of Presentation: Kusatsu, Japan
  • Year and Date: 2009-09-09