Study of the Detached Divertor Plasma under Huge Heat Flux Condition

• Project/Area Number: 15K18312
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Nuclear fusion studies
• Research Institution: National Institutes for Quantum and Radiological Science and Technology (2016-2017); Japan Atomic Energy Agency (2015)
• Principal Investigator: Kazuo Hoshino 国立研究開発法人量子科学技術研究開発機構, 那珂核融合研究所 先進プラズマ研究部, 主幹研究員(定常) (50513222)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Project Status: Completed (Fiscal Year 2017)
• Budget Amount: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000); Fiscal Year 2017: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2016: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
• Keywords: 核融合プラズマ / トカマク / 核融合原型炉 / ダイバータ / 非接触ダイバータプラズマ / 統合ダイバータシミュレーション / 核癒合原型炉

Outline of Final Research Achievements

Control of the detached divertor plasma and the resultant reduction of the divertor heat load are one of the most critical issues on the fusion DEMO design study. In this study, understanding of the detached divertor plasma has progressed by analysis of the experimental data and development of the divertor simulation code has progressed. Control of the detached divertor plasma and reduction of the divertor heat load by using impurity seeding has been also investigated.

Research Products

• [Journal Article] Multi-impurity divertor simulation using a Monte-Carlo kinetic impurity transport model (2018)
  • Author(s): K. Hoshino, Y. Homma, S. Tokunaga, K. Shimizu
  • Journal Title: Contributions to Plasma Physics Volume: 印刷中 Issue: 6-8 Pages: 638-642
  • DOI: 10.1002/ctpp.201700166
  • Peer Reviewed
• [Journal Article] Photon Trapping Effects in DEMO Divertor Plasma (2016)
  • Author(s): K. Hoshino, K. Sawada, R. Idei, N. Asakura, K. Shimizu, S. Tokunaga, N. Ohno
  • Journal Title: Contributions to Plasma Physics Volume: 56 Issue: 6-8 Pages: 657-662
  • DOI: 10.1002/ctpp.201610039
  • Peer Reviewed
• [Presentation] SONICコードによる多種不純物ダイバータシミュレーション (2017)
  • Author(s): 星野一生、本間裕貴、徳永晋介
  • Organizer: Plasma Conference 2017
• [Presentation] 原型炉におけるパワー排出シナリオとダイバータ設計検討 (2017)
  • Author(s): 朝倉伸幸、星野一生、鈴木哲、宇藤裕康、染谷洋二、徳永晋介、工藤広信、本間裕樹、坂本宜照、日渡良爾、飛田健次、江里幸一郎、関洋治、大野哲靖、上田良夫、原型炉設計合同特別チーム
  • Organizer: Plasma Conference 2017
• [Presentation] プラズマ衝突度を考慮した運動論的熱力モデルの開発 (2017)
  • Author(s): 本間裕貴、星野一生、徳永晋介、矢本昌平、畑山明聖、朝倉伸幸、坂本宜照、飛田健次、原型炉設計合同特別チーム
  • Organizer: Plasma Conference 2017
• [Presentation] Multi-impurity divertor simulation using a Monte-Carlo kinetic impurity transport model (2017)
  • Author(s): K. Hoshino, Y. Homma, S. Tokunaga, K. Shimizu
  • Organizer: 16th International Workshop on Plasma Edge Theory in Fusion Devices
  • Int'l Joint Research
• [Presentation] 統合ダイバータコードSONICのMPMD化 (2016)
  • Author(s): 星野一生、清水勝宏
  • Organizer: プラズマ・核融合学会第33回年会
  • Place of Presentation: 東北大学、宮城県仙台市
  • Year and Date: 2016-11-29
• [Presentation] Physics design study of the divertor power handling in 8m-sized DEMO reactor (2016)
  • Author(s): K. Hoshino, N. Asakura, S. Tokunaga, Y. Homma, K. Shimizu, Y. Sakamoto, K. Tobita and Joint Special Design Team for Fusion DEMO
  • Organizer: 29th Symposium on Fusion Technology
  • Place of Presentation: Prague Congress Centre, Prague, Czech Republic
  • Year and Date: 2016-09-05
  • Int'l Joint Research
• [Presentation] 原型炉設計におけるダイバータ研究の進展 (2015)
  • Author(s): 星野一生、朝倉伸幸、徳永晋介、清水勝宏、本間裕貴、染谷洋二、宇藤裕康、坂本宜照、飛田健次
  • Organizer: 第32回プラズマ・核融合学会 年会
  • Place of Presentation: 名古屋大学東山キャンパス（愛知県名古屋市）
  • Year and Date: 2015-11-24
  • Invited
• [Presentation] Conceptual Design Study of the Divertor and Power Exhaust (2015)
  • Author(s): N. Asakura, K. Hoshino, H. Utoh, Y. Someya, K. Ezato, S. Suzuki, S. Tokunaga, K. Shimizu, Y. Sakamoto, M. Nakamura, K. Tobita, Y. Ueda
  • Organizer: 12th International Symposium of Fusion Nuclear Technology
  • Place of Presentation: Jeju Island (Korea)
  • Year and Date: 2015-09-14
  • Int'l Joint Research
• [Presentation] Photon Absorption Effects in DEMO Divertor Plasma (2015)
  • Author(s): K. Hoshino, K. Sawada, R. Idei, N. Asakura, K. Shimizu, S. Tokunaga, N. Ohno
  • Organizer: 15th International Workshop on Plasma Edge Theory in Fusion Devices
  • Place of Presentation: 奈良春日野国際フォーラム（奈良県奈良市）
  • Year and Date: 2015-09-09
  • Int'l Joint Research