Understanding the spatial structure of impurity transport characteristics with a new tracer-encapsulated solid pellet and its applied research

• Project/Area Number: 15H04234
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Nuclear fusion studies
• Research Institution: National Institute for Fusion Science
• Principal Investigator: Tamura Naoki 核融合科学研究所, ヘリカル研究部, 准教授 (80390631)
• Co-Investigator(Kenkyū-buntansha): 鈴木 千尋 核融合科学研究所, ヘリカル研究部, 助教 (30321615) ; 庄司 主 核融合科学研究所, ヘリカル研究部, 准教授 (00280602) ; 村上 泉 核融合科学研究所, ヘリカル研究部, 教授 (30290919) ; 向井 清史 核融合科学研究所, ヘリカル研究部, 助教 (90632266) ; 舟場 久芳 核融合科学研究所, ヘリカル研究部, 助教 (40300727)
• Research Collaborator: SUDO shigeru ; SERGEEV vladimir ; MCCARTHY kieran ; KUBKOWSKA monika ; CZARNECKA agata ; FORNAL tomasz ; SATOH nakahiro
• Project Period (FY): 2015-04-01 – 2019-03-31
• Project Status: Completed (Fiscal Year 2018)
• Budget Amount: ¥15,210,000 (Direct Cost: ¥11,700,000、Indirect Cost: ¥3,510,000); Fiscal Year 2018: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000); Fiscal Year 2017: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000); Fiscal Year 2016: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000); Fiscal Year 2015: ¥7,020,000 (Direct Cost: ¥5,400,000、Indirect Cost: ¥1,620,000)
• Keywords: プラズマ / 核融合 / ステラレーター / 不純物輸送 / 不純物トレーサー / トレーサー内蔵ペレット / TESPEL / ヘリカル / トレーサー内蔵固体ペレット / プラズマ・核融合 / 炉心プラズマ

Outline of Final Research Achievements

One of the goals in this research project is to understand the spatial structure of impurity transport characteristics with a new tracer-encapsulated solid pellet. The experiment with the deuterium plasma in LHD gives us new information on the spatial structure of impurity transport characteristics. Another goal of this research project is to improve the efficiency of reducing a heat load on a divertor plate by introducing the impurity. The necessary basic data has been collected by this research project.

Academic Significance and Societal Importance of the Research Achievements

【学術的意義】
本研究で得られた研究成果は、様々なイオンと電子で構成される磁場閉じ込め高温プラズマに関する理解を深めるのに役立つものである。
【社会的意義】本研究で得られた、(1)磁場閉じ込め高温プラズマ中の不純物輸送特性の空間構造に関する新たな知見、(2)ダイバータにおける熱負荷低減のために不純物をあえて導入する方法の高度化に必要な基礎データは、核融合発電炉の早期実現に必要な技術の確立にも貢献するものである。

Research Products

• [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] エネルギー・環境・技術研究センター(スペイン)
• [Int'l Joint Research] プラズマ物理とレーザーマイクロ核融合研究所(ポーランド)
• [Int'l Joint Research] SPbPU(ロシア連邦)
• [Int'l Joint Research] CIEMAT(スペイン)
• [Int'l Joint Research] SPbPU(ロシア連邦)
• [Int'l Joint Research] CIEMAT(スペイン)
• [Journal Article] Systematic observation of EUV spectra from highly charged lanthanide ions in the Large Helical Device (2018)
  • Author(s): C. Suzuki, F. Koike, I. Murakami, N. Tamura, S. Sudo
  • Journal Title: Atoms Volume: 6 Issue: 2 Pages: 24-24
  • DOI: 10.3390/atoms6020024
  • NAID: 120007098363
  • Peer Reviewed / Open Access
• [Journal Article] Investigation of dust shielding effect of intrinsic ergodic magnetic field line structures in the peripheral plasma in the large helical device (2018)
  • Author(s): M. Shoji, G. Kawamura, R. Smirnov, A. Pigarov, Y. Tanaka, S. Masuzaki, Y. Uesugi
  • Journal Title: Contributions to Plasma Physics Volume: 印刷中 Issue: 6-8 Pages: 616-621
  • DOI: 10.1002/ctpp.201700125
  • NAID: 120007180013
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Impurity transport simulation in the peripheral plasma in the large helical device with tungsten closed helical divertor (2018)
  • Author(s): Shoji M.、Kawamura G.、Masuzaki S.、Morisaki T.
  • Journal Title: Nuclear Materials and Energy Volume: 17 Pages: 188-193
  • DOI: 10.1016/j.nme.2018.11.002
  • Peer Reviewed / Open Access
• [Journal Article] Improvement of infrared imaging video bolometer for application to deuterium experiment on the large helical device (2018)
  • Author(s): Mukai K.、Abe R.、Peterson B. J.、Takayama S.
  • Journal Title: Review of Scientific Instruments Volume: 89 Issue: 10
  • DOI: 10.1063/1.5038947
  • NAID: 120007166308
  • Peer Reviewed
• [Journal Article] Improvements in a tracer-encapsulated solid pellet and its injector for more advanced plasma diagnostics (2017)
  • Author(s): N. Tamura, S. Sudo, C. Suzuki, H. Funaba, M. Takagi, N. Satoh, H. Hayashi, H. Maeno, M. Yokota, H. Ogawa
  • Journal Title: Journal of Physics: Conference Series Volume: 823 Pages: 012003-012003
  • DOI: 10.1088/1742-6596/823/1/012003
  • Peer Reviewed / Open Access
• [Journal Article] Observation of the ECH effect on the impurity accumulation in the LHD (2017)
  • Author(s): N. Tamura, C. Suzuki, S. Satake, Y. Nakamura, M. Nunami, H. Funaba, K. Tanaka, M. Yoshinuma, K. Ida, S. Sudo, LHD Experiment Group
  • Journal Title: Physics of Plasmas Volume: 24 Issue: 5 Pages: 056118-056118
  • DOI: 10.1063/1.4983626
  • Peer Reviewed / Open Access
• [Journal Article] Simulation of impurity transport in the peripheral plasma due to the emission of dust in long pulse discharges on the Large Helical Device (2017)
  • Author(s): Shoji M.、Kawamura G.、Smirnov R.、Pigarov A.、Tanaka Y.、Masuzaki S.、Uesugi Y.
  • Journal Title: Nuclear Materials and Energy Volume: 12 Pages: 779-785
  • DOI: 10.1016/j.nme.2017.07.002
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Collisional-radiative model including recombination processes for W27+ ion (2017)
  • Author(s): I. Murakami, A. Sasaki, D. Kato, F. Koike
  • Journal Title: The European Physical Journal D Volume: 71 Issue: 10 Pages: 1-6
  • DOI: 10.1140/epjd/e2017-80099-4
  • NAID: 120007180016
  • Peer Reviewed / Open Access
• [Journal Article] A comprehensive study on impurity behavior in LHD long pulse discharges (2017)
  • Author(s): Y. Nakamura, N. Tamura, M. Kobayashi, S. Yoshimura, C. Suzuki, M. Yoshinuma, M. Goto, G. Motojima, K. Nagaoka, K. Tanaka, R. Sakamoto, B.J. Peterson, K. Ida, M. Osakabe, T. Morisaki, the LHD Experiment Group
  • Journal Title: Nuclear Material and Energy Volume: 印刷中 Pages: 124-132
  • DOI: 10.1016/j.nme.2016.11.005
  • Peer Reviewed / Open Access
• [Journal Article] Strong Suppression of Impurity Accumulation in Steady-State Hydrogen Discharges with High Power NBI Heating on LHD (2017)
  • Author(s): Y. Nakamura, N. Tamura, M. Yoshinuma, C. Suzuki, S. Yoshimura, M. Kobayashi, M. Yokoyama, M. Nakata, K. Nagaoka, K. Tanaka, B. J. Peterson, K. Ida, M. Osakabe, T. Morisaki and the LHD Experiment Group
  • Journal Title: Nuclear Fusion Volume: 57 Issue: 5 Pages: 1-10
  • DOI: 10.1088/1741-4326/aa6187
  • NAID: 120007186433
  • Peer Reviewed
• [Journal Article] Extreme ultraviolet spectroscopy and atomic models of highly charged heavy ions in the Large Helical Device (2017)
  • Author(s): Chihiro Suzuki, Izumi Murakami, Fumihiro Koike, Naoki Tamura, Hroyuki A. Sakaue, Shigeru Morita, Motoshi Goto, Daiji Kato, Hayato Ohashi, Takeshi Higashiguchi, Shigeru Sudo, and Gegard O’Sullivan
  • Journal Title: Plasma Physics and Controlled Fusion Volume: 59 Issue: 1 Pages: 014009-014009
  • DOI: 10.1088/0741-3335/59/1/014009
  • NAID: 120007180784
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Development of a new tracer-encapsulated solid pellet injection system for more precise control of tracer-impurity-deposit location in LHD (2016)
  • Author(s): N. Tamura, M. Shoji, C. Suzuki, H. Funaba, H. Hayashi, H. Maeno, M. Yokota, H. Ogawa and S. Sudo
  • Journal Title: Review of Scientific Instruments Volume: 87 Issue: 11
  • DOI: 10.1063/1.4962041
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Mitigation of the tracer impurity accumulation by EC heating in the LHD (2016)
  • Author(s): N. Tamura, S. Sudo, C. Suzuki, H. Funaba, Y. Nakamura, K. Tanaka, M. Yoshinuma, K. Ida and The LHD Experiment Group
  • Journal Title: Plasma Physics and Controlled Fusion Volume: 58 Issue: 11 Pages: 114003-114003
  • DOI: 10.1088/0741-3335/58/11/114003
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Observation of Termination Process of Long Pulse Plasma Discharges Using Stereoscopic Fast Framing Cameras in the Large Helical Device (2016)
  • Author(s): M. Shoji, H. Kasahara, H. Tanaka, T. Murase, M. Tokitani, S. Morita, M. Goto, T. Oishi, T. Mutoh, E. de la Cal, C. Hidalgo, and the LHD Experiment Group
  • Journal Title: Plasma and Fusion Research Volume: 11 Issue: 0 Pages: 2402056-2402056
  • DOI: 10.1585/pfr.11.2402056
  • NAID: 130005395217
  • ISSN: 1880-6821
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] In situ calibration of the foil detector for an infrared imaging video bolometer using a carbon evaporation technique (2016)
  • Author(s): K. Mukai, B.J. Peterson, S. Takayama and R. Sano
  • Journal Title: Review of Scientific Instruments Volume: 87 Issue: 11
  • DOI: 10.1063/1.4961280
  • NAID: 120007166307
  • Peer Reviewed
• [Journal Article] Creation of Impurity Source inside Plasmas with Various Types of Tracer-Encapsulated Solid Pellet (2015)
  • Author(s): N. Tamura, S. Sudo, C. Suzuki and H. Funaba
  • Journal Title: Plasma and Fusion Research Volume: 10 Issue: 0 Pages: 1402056-1402056
  • DOI: 10.1585/pfr.10.1402056
  • NAID: 130005286913
  • ISSN: 1880-6821
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Development of quantitative atomic modeling for tungsten transport study using LHD plasma with tungsten pellet injection (2015)
  • Author(s): I. Murakami, H.A. Sakaue, C. Suzuki, D. Kato, M. Goto, N. Tamura, S. Sudo, S. Morita and LHD Experiment Group
  • Journal Title: Nuclear Fusion Volume: 55 Issue: 9 Pages: 093016-093016
  • DOI: 10.1088/0029-5515/55/9/093016
  • NAID: 120007176971
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Development of impurity seeding and radiation enhancement in the helical divertor of LHD (2015)
  • Author(s): K. Mukai, S. Masuzaki, B.J. Peterson, T. Akiyama, M. Kobayashi, C. Suzuki, H. Tanaka, S.N. Pandya, R. Sano, G. Motojima, N. Ohno, T. Morisaki, I. Murakami, J. Miyazawa, N. Tamura, S. Yoshimura, I. Yamada, R. Yasuhara, H. Funaba, K. Tanaka and the LHD Experiment Group
  • Journal Title: Nuclear Fusion Volume: 55 Issue: 8 Pages: 083016-083016
  • DOI: 10.1088/0029-5515/55/8/083016
  • NAID: 120007166312
  • Peer Reviewed
• [Presentation] Initial Results on Impact of Background Hydrogen Isotope on Impurity Behavior in the EC-heated LHD plasmas (2018)
  • Author(s): N. Tamura, C. Suzuki, H. Funaba, K. Mukai, Y. Yoshinuma, K. Ida, T. Fornal, A. Czarnecka, M. Kubkowska, and LHD Experiment Group
  • Organizer: 45th European Conference on Plasma Physics
  • Int'l Joint Research
• [Presentation] Development of an experimental database of EUV spectra from highly charged ions of medium to high Z elements in the Large Helical Device plasmas (2018)
  • Author(s): C. Suzuki, I. Murakami, F. Koike, T. Higashiguchi, H. A. Sakaue, N. Tamura, S. Sudo, G. O'Sullivan
  • Organizer: 19th International Conference on the Physics of Highly Charged Ions
  • Int'l Joint Research
• [Presentation] Systematic studies on Z dependence of extreme ultraviolet and soft X-ray spectra using high-temperature fusion plasmas (2018)
  • Author(s): C. Suzuki, I. Murakami, F. Koike, N. Tamura, H. Ohashi, T. Higashiguchi, S. Sudo, G. O'Sullivan
  • Organizer: 23rd Australian Institute of Physics Congress
  • Int'l Joint Research / Invited
• [Presentation] LHDプラズマを用いた高Z元素多価イオンからの極端紫外・軟X線スペクトル実験データベースの構築 (2018)
  • Author(s): 鈴木千尋、村上泉、小池文博、東口武史、坂上裕之、田村直樹、須藤滋、Gerry O'Sullivan
  • Organizer: 第35回プラズマ・核融合学会年会
• [Presentation] Atomic data evaluation with statistical methods for plasma spectroscopic diagnostics (2018)
  • Author(s): I. Murakami, D. Kato
  • Organizer: 1st International Conference on Data-Driven Plasma Science
  • Int'l Joint Research / Invited
• [Presentation] Spectroscopic modeling for EUV spectra of highly charged tungsten ions including recombination processes (2018)
  • Author(s): I. Murakami, A. Sasaki, D. Kato
  • Organizer: 11th International Conference on Atomic and Molecular Data and Their Applications
  • Int'l Joint Research / Invited
• [Presentation] 原子分子データベースとデータ評価 (2018)
  • Author(s): 村上泉、加藤太治
  • Organizer: 第79回応用物理学会秋季講演会
  • Invited
• [Presentation] 再結合過程を含んだタングステンイオンの衝突輻射モデルの開発 (2018)
  • Author(s): 村上泉、佐々木明、加藤太治
  • Organizer: 第35回プラズマ・核融合学会年会
• [Presentation] Improvement of infrared imaging video bolometer for application to deuterium experiment on the large helical device (2018)
  • Author(s): K. Mukai, R. Abe, B. J. Peterson, S. Takayama
  • Organizer: 22th Topical Conference on High Temperature Plasma Diagnostics
• [Presentation] Multi-Dimensional Measurement of Plasma Radiation on LHD (2018)
  • Author(s): K. Mukai, B.J. Peterson, N. Tamura
  • Organizer: 27th International Toki Conference
  • Int'l Joint Research
• [Presentation] LHDにおける輻射分布の多次元計測 (2018)
  • Author(s): 向井清史，Byron Peterson，田村直樹
  • Organizer: 第35回プラズマ・核融合学会年会
• [Presentation] 大型ヘリカル装置(LHD)における炭素・タングステンダイバータ配位時のプラズマ周辺部の不純物輸送シミュレーション解析 (2018)
  • Author(s): 庄司主，河村学思
  • Organizer: 第35回プラズマ・核融合学会年会
• [Presentation] Comparative Analysis of Impurity Transport in the Peripheral Plasma in the Large Helical Device for Carbon and Tungsten Divertor Configurations with EMC3-EIRENE (2018)
  • Author(s): M. Shoji, G. Kawamura
  • Organizer: 27th International Toki Conference
  • Int'l Joint Research
• [Presentation] 再結合プラズマのためのタングステンイオン衝突輻射モデルの拡張II (2018)
  • Author(s): 村上泉、佐々木明、加藤太治
  • Organizer: 日本物理学会第73回年次大会
• [Presentation] Particle and impurity transport in enhanced confinement modes (2017)
  • Author(s): N. Tamura
  • Organizer: 16th International Workshop on H-mode Physics and Transport Barriers
  • Int'l Joint Research / Invited
• [Presentation] Characteristics of impurity transport in the EC-heated LHD plasmas (2017)
  • Author(s): N. Tamura, C. Suzuki, K. Mukai, H. Funaba, Y. Yoshinuma, K. Ida, T. Fornal, A. Czarnecka, M. Kubkowska, and LHD Experiment Group
  • Organizer: Plasma Conference 2017
• [Presentation] Characteristics of impurity transport in the EC-heated LHD plasmas (2017)
  • Author(s): N. Tamura, C. Suzuki, K. Mukai, H. Funaba, Y. Yoshinuma, K. Ida, T. Fornal, A. Czarnecka, M. Kubkowska, and LHD Experiment Group
  • Organizer: Joint meeting of the 26th International Toki Conference and the 11th Asia Plasma and Fusion Association Conference
  • Int'l Joint Research
• [Presentation] Systematic study on soft X-ray spectra from heavy ions in optically thin and thick plasmas (2017)
  • Author(s): C. Suzuki, I. Murakami, F. Koike, T. Higashiguchi, H. A. Sakaue, N. Tamura, S. Sudo, G. O’Sullivan
  • Organizer: 44th European Physical Society Conference on Plasma Physics
  • Int'l Joint Research
• [Presentation] Investigation of dust shielding effects by intrinsic ergodic magnetic field line structures in the peripheral plasma in the Large Helical Device (2017)
  • Author(s): M. Shoji, G. Kawamura, R. Smirnov, A. Pigarov, Y. Tanaka, S. Masuzaki, Y. Uesugi
  • Organizer: 16th International Workshop on Plasma Edge Theory in Fusion Devices
  • Int'l Joint Research
• [Presentation] mpurity transport simulation in the peripheral plasma in the Large Helical Device with tungsten closed helical divertor (2017)
  • Author(s): M. Shoji, G. Kawamura, S. Masuzaki, T. Morisaki
  • Organizer: Plasma Conference 2017
• [Presentation] 再結合プラズマのためのタングステンイオン衝突輻射モデルの拡張について (2017)
  • Author(s): 村上泉、佐々木明、加藤太治
  • Organizer: Plasma Conference 2017
• [Presentation] Carbon impurities behaviour of high-ion-temperature discharges with deuterium in the Large Helical Device (2017)
  • Author(s): K. Mukai, K. Nagaoka, H. Takahashi, M. Yokoyama, S. Murakami, H. Nakano, K. Ida, M. Yoshinuma, R. Seki, S. Kamio, Y. Fujiwara, T. Oishi, M. Goto, S. Morita, T. Morisaki, M. Osakabe and the LHD Experiment Group
  • Organizer: 21st International Stellarator-Heliotron Workshop
  • Int'l Joint Research
• [Presentation] プラズマ中の重元素多価イオンからの極端紫外スペクトルに関する系統的研究 (2016)
  • Author(s): 鈴木千尋、村上泉、小池文博、東口武史、坂上裕之、田村直樹、須藤滋、Gerry O'Sullivan
  • Organizer: プラズマ・核融合学会第33回年会
  • Place of Presentation: 仙台、日本
  • Year and Date: 2016-11-29
• [Presentation] タングステンイオンの極端紫外スペクトルにおける二電子性再結合過程の寄与 について (2016)
  • Author(s): 村上泉、佐々木明、加藤太治、小池文博
  • Organizer: プラズマ・核融合学会第33回年会
  • Place of Presentation: 仙台、日本
  • Year and Date: 2016-11-29
• [Presentation] イメージングボロメータ計測のLHD重水素実験への適用 (2016)
  • Author(s): 向井清史、 B.J. Peterson、高山定次、佐野竜一
  • Organizer: プラズマ・核融合学会第33回年会
  • Place of Presentation: 仙台、日本
  • Year and Date: 2016-11-29
• [Presentation] Observation and Calculation of the ECRH Effect on the Tracer Impurity Accumulation in LHD (2016)
  • Author(s): N. Tamura
  • Organizer: 58th Annual Meeting of the APS Division of Plasma Physics
  • Place of Presentation: San Jose, USA
  • Year and Date: 2016-10-31
  • Int'l Joint Research / Invited
• [Presentation] Strong Suppression of Impurity Accumulation in Steady-State Hydrogen Discharges with High Power NBI Heating on LHD (2016)
  • Author(s): Y. Nakamura, N. Tamura, M. Yoshinuma, C. Suzuki, S. Yoshimura, M. Kobayashi, M. Yokoyama, M. Nakata, K. Nagaoka, K. Tanaka, B. J. Peterson, K. Ida, M. Osakabe, T. Morisaki and the LHD Experiment Group
  • Organizer: 26th IAEA Fusion Energy Conference
  • Place of Presentation: Kyoto, Japan
  • Year and Date: 2016-10-17
  • Int'l Joint Research
• [Presentation] Systematic observation of EUV spectra from highly charged lanthanide ions in the Large Helical Device (2016)
  • Author(s): C. Suzuki, F. Koike, I. Murakami, N. Tamura, S. Sudo
  • Organizer: 10th International Conference on Atomic and Molecular Data and Their Applications
  • Place of Presentation: Gunsan, South Korea
  • Year and Date: 2016-09-25
  • Int'l Joint Research
• [Presentation] Collisional-Radiative Model of Tungsten Ions for EUV Spectroscopy (2016)
  • Author(s): I. Murakami, A. Sasaki, D. Kato, F. Koike
  • Organizer: 10th International Conference on Atomic and Molecular Data and Their Applications
  • Place of Presentation: Gunsan, South Korea
  • Year and Date: 2016-09-25
  • Int'l Joint Research
• [Presentation] 大型ヘリカル装置(LHD)の長時間放電におけるダスト放出時の周辺プラズマ中の不純物輸送シミュレーション解析 (2016)
  • Author(s): 庄司主, 河村学思, R. Smirnov, A. Pigarov, 田中康規, 増崎貴, 上杉喜彦, LHD実験グループ
  • Organizer: 第11回核融合エネルギー連合講演会
  • Place of Presentation: 九州大学伊都キャンパス
  • Year and Date: 2016-07-14
• [Presentation] EUV spectroscopy and atomic models of highly charged heavy ions in the Large Helical Device (2016)
  • Author(s): C. Suzuki, I. Murakami, F. Koike, N. Tamura, H. A. Sakaue, S. Morita, M. Goto, D. Kato, H. Ohashi, T. Higashiguchi, S. Sudo and G. O'Sullivan
  • Organizer: 43rd European Physical Society Conference on Plasma Physics
  • Place of Presentation: Leuven, Belgium
  • Year and Date: 2016-07-04
  • Int'l Joint Research / Invited
• [Presentation] Recent Progress in Impurity Transport Study on LHD (2016)
  • Author(s): N. Tamura
  • Organizer: 6th Asia-Pacific Transport Working Group Meeting
  • Place of Presentation: Seoul, South Korea
  • Year and Date: 2016-06-22
  • Int'l Joint Research
• [Presentation] Development of a New Tracer-Encapsulated Solid Pellet Injection System for More Precise Control of Tracer-Impurity-Deposited Location in LHD (2016)
  • Author(s): N. Tamura, M. Shoji, C. Suzuki, H. Funaba, H. Hayashi, H. Maeno, M. Yokota, H. Ogawa, and S. Sudo
  • Organizer: 21st Topical Conference on High-Temperature Plasma Diagnostics
  • Place of Presentation: Madison, USA
  • Year and Date: 2016-06-05
  • Int'l Joint Research
• [Presentation] Development of foil detector for infrared imaging video bolometer using carbon evaporation coating (2016)
  • Author(s): K. Mukai, B.J. Peterson, S. Takayama and R. Sano
  • Organizer: 21st Topical Conference on High-Temperature Plasma Diagnostics
  • Place of Presentation: Madison, USA
  • Year and Date: 2016-06-05
  • Int'l Joint Research
• [Presentation] A comprehensive study on impurity behavior in LHD long pulse discharges (2016)
  • Author(s): Y. Nakamura, N. Tamura, M. Kobayashi, S. Yoshimura, C. Suzuki, M. Yoshinuma, M. Goto, G. Motojima, K. Nagaoka, K. Tanaka, R. Sakamoto, B. J. Peterson, K. Ida, M. Osakabe, T. Morisaki and the LHD Experiment Group
  • Organizer: 22nd International Conference on Plasma Surface Interactions in Controlled Fusion Devices
  • Place of Presentation: Rome, Italy
  • Year and Date: 2016-05-30
  • Int'l Joint Research / Invited
• [Presentation] M. Shoji, G. Kawamura, R. Smirnov, A. Pigarov, Y. Tanaka, S. Masuzaki, Y. Uesugi, and the LHD Experiment Group (2016)
  • Author(s): Simulation of impurity transport in the peripheral plasma due to the emission of dusts in long pulse discharges on the large helical device
  • Organizer: 22nd International Conference on Plasma Surface Interactions in Controlled Fusion Devices
  • Place of Presentation: Rome, Italy
  • Year and Date: 2016-05-30
  • Int'l Joint Research
• [Presentation] LHDのプラズマコア部における不純物蓄積のECH追加熱による抑制 (2016)
  • Author(s): 田村直樹、須藤滋、鈴木千尋、舟場久芳、田中謙治、中村幸男、LHD実験グループ
  • Organizer: 日本物理学会第71回年次大会
  • Place of Presentation: 仙台市、日本
  • Year and Date: 2016-03-19
• [Presentation] Improvements in a Tracer-Encapsulated Solid Pellet and Its Injector for More Advanced Plasma Diagnostics (2015)
  • Author(s): N. Tamura, S. Sudo, C. Suzuki, H. Funaba, M. Takagi, N. Satoh, H. Hayashi, H. Maeno, M. Yokota and H. Ogawa
  • Organizer: 10th Asia Plasma and Fusion Association Conference
  • Place of Presentation: Gandhinagar, India
  • Year and Date: 2015-12-14
  • Int'l Joint Research
• [Presentation] LHDプラズマを用いたランタノイド系元素多価イオンからの極端紫外スペクトルの系統的観測 (2015)
  • Author(s): 鈴木千尋、小池文博、村上泉、田村直樹、須藤滋
  • Organizer: プラズマ・核融合学会第32回年会
  • Place of Presentation: 名古屋市、日本
  • Year and Date: 2015-11-24
• [Presentation] LHD における長時間放電プラズマ終端現象のステレオ視高速 カメラによる計測 (2015)
  • Author(s): 庄司主、笠原寛史、田中宏彦、時谷政行、森田繁、後藤基志、大石鉄太郎、武藤敬、E. de la Cal、C. Hidalgo、LHD 実験グループ
  • Organizer: プラズマ・核融合学会第32回年会
  • Place of Presentation: 名古屋市、日本
  • Year and Date: 2015-11-24
• [Presentation] 希土類元素多価イオンの分光モデル構築と極端紫外スペクトル解析 (2015)
  • Author(s): 村上泉、鈴木千尋、田村直樹、須藤滋、小池文博
  • Organizer: プラズマ・核融合学会第32回年会
  • Place of Presentation: 名古屋市、日本
  • Year and Date: 2015-11-24
• [Presentation] LHD におけるイメージングボロメータ計測の中性子環境下への適用 (2015)
  • Author(s): 向井清史、B.J. Peterson、佐野竜一
  • Organizer: プラズマ・核融合学会第32回年会
  • Place of Presentation: 名古屋市、日本
  • Year and Date: 2015-11-24
• [Presentation] Effects of optical thickness on soft X-ray spectral feature observed in Gd and Tb plasmas (2015)
  • Author(s): C. Suzuki, T. Higashiguchi, A. Sasanuma, G. Arai, Y. Fuji, T.D. Hung, F. Koike, I. Murakami, N. Tamura and S. Sudo
  • Organizer: International Workshop on EUV and Soft X-ray Sources
  • Place of Presentation: Dublin, Ireland
  • Year and Date: 2015-11-09
  • Int'l Joint Research
• [Presentation] Observation of termination process of long pulse plasma discharges using stereoscopic fast framing cameras in the Large Helical Device (2015)
  • Author(s): M. Shoji, H. Kasahara, H. Tanaka, T. Murase, M. Tokitani, S. Morita, M. Goto, T. Oishi, T. Mutoh, E. de la Cal, C. Hidalgo and the LHD experiment group
  • Organizer: 25th International Toki Conference
  • Place of Presentation: Toki, Japan
  • Year and Date: 2015-11-03
  • Int'l Joint Research
• [Presentation] Development of in-situ calibration system for foil detector of infrared imaging video bolometer in Large Helical Device (2015)
  • Author(s): K. Mukai, B.J. Peterson, R. Sano
  • Organizer: 25th International Toki Conference
  • Place of Presentation: Toki, Japan
  • Year and Date: 2015-11-03
  • Int'l Joint Research
• [Presentation] Transport properties of high-beta plasmas in the inward shifted configurations on LHD (2015)
  • Author(s): H. Funaba, K.Y. Watanabe, S. Sakakibara, S. Murakami, R. Seki, S. Ohdachi, Y. Suzuki, I. Yamada, R. Yasuhara, K. Tanaka, T. Tokuzawa, M. Osakabe, H. Yamada, Y. Takeiri and LHD Experiment Group
  • Organizer: 25th International Toki Conference
  • Place of Presentation: Toki, Japan
  • Year and Date: 2015-11-03
  • Int'l Joint Research
• [Presentation] Mitigation of Core Impurity Accumulation by EC Heating in LHD (2015)
  • Author(s): N. Tamura, S. Sudo, C. Suzuki, H. Funaba, K. Tanaka, Y. Nakamura and LHD Experiment Group
  • Organizer: 20th International Stellarator/Heliotron Workshop
  • Place of Presentation: Greifswald, Germany
  • Year and Date: 2015-10-05
  • Int'l Joint Research
• [Presentation] タングステン多価イオンの衝突輻射モデルと極端紫外スペクトル解析 (2015)
  • Author(s): 村上泉、加藤太治、坂上裕之、鈴木千尋、後藤基志、田村直樹、須藤滋、森田繁
  • Organizer: 原子衝突学会第40回年会
  • Place of Presentation: 八王子市、日本
  • Year and Date: 2015-09-28
• [Presentation] Study of a impurity transport boundary layer in LHD plasmas (2015)
  • Author(s): N. Tamura
  • Organizer: 14th Coordinated Working Group Meeting
  • Place of Presentation: Warsaw, Poland
  • Year and Date: 2015-06-17
  • Int'l Joint Research
• [Presentation] EUV Spectroscopy of tungsten ions in LHD plasmas (2015)
  • Author(s): C. Suzuki, I. Murakami, N. Tamura, S. Sudo, H.A. Sakaue, N. Nakamura, S. Morita, M. Goto, D. Kato, T. Nakano, C.S. Harte and G. O'Sullivan
  • Organizer: 14th Coordinated Working Group Meeting
  • Place of Presentation: Warsaw, Poland
  • Year and Date: 2015-06-17
  • Int'l Joint Research
• [Presentation] Abrupt Response of Impurity Transport to Heating (2015)
  • Author(s): N. Tamura, S. Sudo, S. Inagaki, C. Suzuki, H. Funaba, K. Tanaka and K. Ida
  • Organizer: 5th Asia-Pacific Transport Working Group International Conference
  • Place of Presentation: Dalian, China
  • Year and Date: 2015-06-09
  • Int'l Joint Research / Invited