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Verification of the robustness of methods to prevent impurity accumulation using a compound-tracer encapsulated solid pellet

Research Project

Project/Area Number 19H01881
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 14020:Nuclear fusion-related
Research InstitutionNational 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) 吉沼 幹朗  核融合科学研究所, ヘリカル研究部, 助教 (20323058)
鈴木 千尋  核融合科学研究所, ヘリカル研究部, 助教 (30321615)
舟場 久芳  核融合科学研究所, ヘリカル研究部, 助教 (40300727)
向井 清史  核融合科学研究所, ヘリカル研究部, 助教 (90632266)
Project Period (FY) 2019-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥16,510,000 (Direct Cost: ¥12,700,000、Indirect Cost: ¥3,810,000)
Fiscal Year 2022: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2021: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2020: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2019: ¥6,630,000 (Direct Cost: ¥5,100,000、Indirect Cost: ¥1,530,000)
Keywordsプラズマ・核融合 / 炉心プラズマ / 不純物輸送 / 不純物蓄積 / トレーサー内蔵固体ペレット / TESPEL / 追加熱効果 / トレーサー内蔵ペレット
Outline of Research at the Start

核融合プラズマ中に不純物が溜まる現象を回避する方法は幾つかあるが、それを実現させている物理機構の解明が現在の課題である。また、適用裕度(ロバスト性)に着目した回避手法の最適化研究は、ほぼ手つかずの状況にある。研究代表者は、低Z不純物と高Z不純物を等量含む複合トレーサー内蔵ペレットを新たに開発し、大型ヘリカル装置において不純物蓄積回避手法におけるロバスト性の実験的検証を低Z不純物と高Z不純物に対して同一条件で実施し、その検証を飛躍的に加速させる。これにより、不純物蓄積回避の鍵となる物理パラメータを抽出し、計算による結果との比較、検証から、不純物蓄積回避を実現させている物理機構の解明を目指す。

Outline of Final Research Achievements

This research project aims to experimentally clarify the critical physical parameters in a scheme that avoids the accumulation of impurities in magnetically confined high-temperature plasmas. We have developed a new tracer-encapsulated solid pellet (TESPEL) containing low-Z and high-Z impurities. We have established a charge exchange spectroscopy (CXS) diagnostic, which is necessary for observing the behavior of low-Z impurities injected by such a TESPEL. As avoidance schemes for impurity accumulation, we selected electron cyclotron heating (ECH) and ion cyclotron heating (ICH) and examined their effects in plasmas with different electron densities. As a result, it was found that ICH is also effective as an avoidance scheme for impurity accumulation. Still, the impact of ECH is found to be particularly significant, rather than the impact of ICH.

Academic Significance and Societal Importance of the Research Achievements

本研究で得られた成果として、まず、磁場閉じ込め高温プラズマ中の低Z不純物と高Z不純物の挙動を同時に測定することができる複合トレーサー内蔵ペレットの開発に成功したことは、本研究課題のみならず、原子分子物理といった様々な研究課題に活用することが可能であることから、その学術的意義は高いと考えられる。また、磁場閉じ込め高温プラズマにおける不純物蓄積回避スキームに関する知見が本研究により拡充されたことは、今後同スキームの物理機構解明に繋がるため、学術的意義は高い。さらに、そのことは同スキームの最適化、ひいては将来の核融合炉の効率化に繋がるため、社会的意義も高いと言える。

Report

(5 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • Research Products

    (66 results)

All 2023 2022 2021 2020 2019 Other

All Int'l Joint Research (17 results) Journal Article (14 results) (of which Int'l Joint Research: 5 results,  Peer Reviewed: 14 results,  Open Access: 7 results) Presentation (32 results) (of which Int'l Joint Research: 20 results,  Invited: 9 results) Remarks (3 results)

  • [Int'l Joint Research] マックスプランク・プラズマ物理研究所(ドイツ)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] エネルギー・環境・科学技術研究センター(スペイン)

    • Related Report
      2022 Annual Research Report
  • [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)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] ウィスコンシン大学マディソン校(米国)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] サンクトペテルブルク工科大学(ロシア連邦)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] マックスプランク・プラズマ物理研究所(ドイツ)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] エネルギー・環境・科学技術研究センター(スペイン)

    • Related Report
      2021 Annual Research Report
  • [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)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] ウィスコンシン大学マディソン校(米国)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] サンクトペテルブルク工科大学(ロシア連邦)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] マックスプランク・プラズマ物理研究所(ドイツ)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] エネルギー・環境・科学技術研究センター(スペイン)

    • Related Report
      2020 Annual Research Report
  • [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)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] ウィスコンシン大学マディソン校(米国)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] マックスプランク・プラズマ物理研究所(ドイツ)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] エネルギー・環境・科学技術研究センター(スペイン)

    • Related Report
      2019 Annual Research Report
  • [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)

    • Related Report
      2019 Annual Research Report
  • [Journal Article] Detailed Analysis of Spectra from Ga-like Ions of Heavy Elements Observed in High-Temperature Plasmas2023

    • Author(s)
      Suzuki Chihiro、Koike Fumihiro、Murakami Izumi、Kato Daiji、Tamura Naoki、Oishi Tetsutarou、Nakamura Nobuyuki
    • Journal Title

      Atoms

      Volume: 11 Issue: 2 Pages: 33-33

    • DOI

      10.3390/atoms11020033

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Three-dimensional structure of radiative cooling in impurity seeded plasmas in the Large Helical Device2022

    • Author(s)
      Mukai K.、Kawamura G.、Masuzaki S.、Hayashi Y.、Tanaka H.、Peterson B.J.、Oishi T.、Suzuki C.、Kobayashi M.、Munechika K.
    • Journal Title

      Nuclear Materials and Energy

      Volume: 33 Pages: 101294-101294

    • DOI

      10.1016/j.nme.2022.101294

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Z-dependent crossing of excited-state energy levels in highly charged galliumlike lanthanide atomic ions2022

    • Author(s)
      Koike Fumihiro、Suzuki Chihiro、Murakami Izumi、Kato Daiji、Tamura Naoki、Nakamura Nobuyuki
    • Journal Title

      Physical Review A

      Volume: 105 Issue: 3 Pages: 032802-032802

    • DOI

      10.1103/physreva.105.032802

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Simultaneous Observation of Silicon and Boron Impurity Behaviors in the Core Region of a Mid-Density LHD Plasma2021

    • Author(s)
      TAMURA Naoki、YOSHINUMA Mikirou、IDA Katsumi、SUZUKI Chihiro、GOTO Motoshi、OISHI Tetsutarou、SHOJI Mamoru、MUKAI Kiyofumi、FUNABA Hisamichi
    • Journal Title

      Plasma and Fusion Research

      Volume: 16 Issue: 0 Pages: 1202094-1202094

    • DOI

      10.1585/pfr.16.1202094

    • NAID

      130008087534

    • ISSN
      1880-6821
    • Year and Date
      2021-09-07
    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] A new multi-tracer pellet injection for a simultaneous study of low- and mid/high-Z impurities in high-temperature plasmas2021

    • Author(s)
      Tamura N.、Yoshinuma M.、Yin X.、Ida K.、Suzuki C.、Shoji M.、Mukai K.、Funaba H.
    • Journal Title

      Review of Scientific Instruments

      Volume: 92 Issue: 6 Pages: 063516-063516

    • DOI

      10.1063/5.0043495

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Development of a double-barreled Tracer Encapsulated Solid Pellet (TESPEL) injection system for LHD2021

    • Author(s)
      Tamura N.、Hayashi H.、Uejima N.、Maeno H.、Itoh Y.、Yokota M.、Ogawa H.
    • Journal Title

      Journal of Instrumentation

      Volume: 16 Issue: 08 Pages: C08003-C08003

    • DOI

      10.1088/1748-0221/16/08/c08003

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Measurements of radial profile of isotope density ratio using bulk charge exchange spectroscopy2021

    • Author(s)
      Yoshinuma M.、Ida K.、Yamasaki K.、Chen J.、Murakami I.
    • Journal Title

      Review of Scientific Instruments

      Volume: 92 Issue: 6 Pages: 063509-063509

    • DOI

      10.1063/5.0043607

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Spectra of Ga-Like to Cu-Like Praseodymium and Neodymium Ions Observed in the Large Helical Device2021

    • Author(s)
      Suzuki Chihiro、Koike Fumihiro、Murakami Izumi、Oishi Tetsutarou、Tamura Naoki
    • Journal Title

      Atoms

      Volume: 9 Issue: 3 Pages: 46-46

    • DOI

      10.3390/atoms9030046

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Steady-state sustainment of divertor detachment with multi-species impurity seeding in LHD2021

    • Author(s)
      Mukai Kiyofumi、Masuzaki Suguru、Hayashi Yuki、Oishi Tetsutaro、Suzuki Chihiro、Kobayashi Masahiro、Tokuzawa Tokihiko、Tanaka Hirohiko、Tanaka Kenji、Kinoshita Toshiki、Sakai Hikona、Peterson Byron Jay
    • Journal Title

      Nuclear Fusion

      Volume: 61 Issue: 12 Pages: 126018-126018

    • DOI

      10.1088/1741-4326/ac2bbc

    • NAID

      120007167590

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Sensitivity improvement of infrared imaging video bolometer for divertor plasma measurement2021

    • Author(s)
      Mukai K.、Peterson B. J.、Ezumi N.、Shigematsu N.、Ohshima S.、Miyashita A.、Matoike R.
    • Journal Title

      Review of Scientific Instruments

      Volume: 92 Issue: 6 Pages: 063521-063521

    • DOI

      10.1063/5.0043664

    • NAID

      120007166309

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Spatial characteristics of luminous hydrocarbon pellet clouds in the large helical device2021

    • Author(s)
      Sharov I A、Sergeev V Yu、Miroshnikov I V、Tamura N、Sudo S
    • Journal Title

      Plasma Physics and Controlled Fusion

      Volume: 63 Issue: 6 Pages: 065002-065002

    • DOI

      10.1088/1361-6587/abf314

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Assessment of W density in LHD core plasmas using visible forbidden lines of highly charged W ions2021

    • Author(s)
      Kato Daiji、Sakaue Hiroyuki A.、Murakami Izumi、Goto Motoshi、Oishi Tetsutarou、Tamura Naoki、Funaba Hisamichi、Morita Shigeru
    • Journal Title

      Nuclear Fusion

      Volume: 61 Issue: 11 Pages: 116008-116008

    • DOI

      10.1088/1741-4326/ac22d1

    • NAID

      120007180057

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Development of an experimental database of EUV spectra from highly charged ions of medium to high Z elements in the Large Helical Device plasmas2019

    • Author(s)
      Suzuki Chihiro、Murakami Izumi、Koike Fumihiro、Higashiguchi Takeshi、Sakaue Hiroyuki A.、Tamura Naoki、Sudo Shigeru、O'Sullivan Gerry
    • Journal Title

      X-Ray Spectrometry

      Volume: 49 Issue: 1 Pages: 78-84

    • DOI

      10.1002/xrs.3058

    • NAID

      120007089664

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Soft X-Ray Spectroscopy of Rare-Earth Elements in LHD Plasmas2019

    • Author(s)
      Suzuki Chihiro、Koike Fumihiro、Murakami Izumi、Tamura Naoki、Sudo Shigeru、O’Sullivan Gerry
    • Journal Title

      Atoms

      Volume: 7 Issue: 3 Pages: 66-66

    • DOI

      10.3390/atoms7030066

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Three-dimensional structure of radiative cooling in impurity seeded plasmas in the Large Helical Device2022

    • Author(s)
      K. Mukai, G. Kawamura, S. Masuzaki, Y. Hayashi, H. Tanaka, B.J. Peterson, T. Oishi, C. Suzuki, M. Kobayashi, K. Munechika
    • Organizer
      25th International Conference on Plasma Surface Interaction in Controlled Fusion Devices
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Initial Results of He-beam experiments on LHD2022

    • Author(s)
      N. Tamura, M. Kobayashi, G. Motojima, H. Kasahara, K. Hanada, O. Schmitz, A. Dinklage, K. Nagaoka, K. Ida, S. Serada, M. Yoshinuma, Y. Kawamoto, Y. Fujiwara, S. Kamio, H. Funaba, Y. Hayashi, K. Tanaka, T. Tokuzawa, I. Yamada, and R. Yasuhara
    • Organizer
      23rd International Stellarator-Heliotron Workshop
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Accelerated impurity exhaust by means of ICRF heating at LHD2022

    • Author(s)
      D. Moseev, H. Kasahara N. Tamura, K. Tanaka, H. Igami, H. Funaba, T. Seki, I. Yamada, M. Yoshinuma, K. Ida, T. Kinoshita, H. Sakai, H.M. Smith, H.P. Laqua, R. Ochoukov, V. Bobkov, S.A. Lazerson, F. Reimold, D. Hartmann, B. Alers, P. Xanthopoulos, Ye. O. Kazakov, and M. Salewski
    • Organizer
      23rd International Stellarator-Heliotron Workshop
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Detailed analysis of spectra from Ga-like ions of heavy elements observed in high temperature plasmas2022

    • Author(s)
      C. Suzuki, F. Koike, I. Murakami, D. Kato, N. Tamura, T. Oishi, N. Nakamura
    • Organizer
      20th International Conference on the Physics of Highly Charged Ions
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Soft X-ray spectroscopy and atomic physics of highly charged lanthanide ions in plasmas2022

    • Author(s)
      C. Suzuki, F. Koike, I. Murakami, N. Tamura, T. Oishi, N. Nakamura
    • Organizer
      6th Asia-Pacific Conference on Plasma Physics
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Relation between toroidally asymmetric behavior of divertor heat load and radiation structure in impurity seeded plasmas on LHD2022

    • Author(s)
      K. Mukai, G. Kawamura, S. Masuzaki, Y. Hayashi, H. Tanaka, B.J. Peterson, T. Oishi, C. Suzuki, M. Kobayashi, K. Munechika
    • Organizer
      31st International Toki Conference
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 高温プラズマ中におけるガリウム様重元素イオンからの発光スペクトルの詳細解析2022

    • Author(s)
      鈴木千尋、小池文博、村上泉、加藤太治、田村直樹、大石鉄太郎、中村信行
    • Organizer
      第38回プラズマ・核融合学会年会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 磁場閉じ込め高温プラズマにおける多元プラズマ研究の進展2022

    • Author(s)
      田村直樹, 小林政弘, 本島厳, 笠原寬史 , 花田和明, Oliver Schmitz, Andreas Dinklage, 居田克巳
    • Organizer
      日本物理学会第77回年次大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] LHDプラズマにおける不純物混入時の水素同位体イオン分布の応答2022

    • Author(s)
      田村 直樹, 吉沼幹朗, 居田克巳, 大石鉄太郎, 後藤基志, 田中謙治, 徳沢季彦, 舟場久芳, 山田一博, 小林政弘, 本島厳, 笠原寬史
    • Organizer
      日本物理学会第77回年次大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Development of a Double-barreled Tracer-Encapsulated Solid Pellet (TESPEL) injection system for LHD2021

    • Author(s)
      N. Tamura, H. Hayashi, N. Uejima, H. Maeno, Y. Ito, M. Yokota, H. Ogawa
    • Organizer
      4th European Conference on Plasma Diagnostics
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Study of the Z-dependence of core impurity transport in LHD plasmas by means of a new type of TESPEL2021

    • Author(s)
      N. Tamura, M. Yoshinuma, K. Ida, C. Suzuki, M. Goto, T. Oishi, M. Shoji, K. Mukai, H. Funaba, and LHD experiment group
    • Organizer
      47th EPS Conference on Plasma Physics
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 新型TESPELを用いたLHDプラズマにおける不純物輸送特性のZ依存性研究2021

    • Author(s)
      田村 直樹, 吉沼幹朗, 居田克巳, 鈴木千尋, 後藤基志, 大石鉄太郎, 庄司主, 向井清史, 舟場久芳
    • Organizer
      日本物理学会2021年秋季大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Experimental Study Towards Taming Mixed Ion Species Plasmas in 3D Magnetic Field2021

    • Author(s)
      N. Tamura, K. Ida, M. Yoshinuma, K. Nagaoka, Y. Fujiwara, T. Oishi, M. Kobayashi, T. Kobayashi, M. Goto, C. Suzuki, Y. Hayashi, H. Funaba, S. Masuzaki, K. Mukai, G. Motojima, M. Nakata, H. Yamaguchi, R. Sakamoto, M. Shoji, O. Schmitz, R. Seki, K. Tanaka, T. Tokuzawa, I. Yamada and R. Yasuhara
    • Organizer
      5th Asia Pacific Conference on Plasma Physics
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 定常大型プラズマを活用した多価イオンの分光計測と原子過程研究2021

    • Author(s)
      鈴木千尋
    • Organizer
      日本物理学会2021年秋季大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Analysis of EUV spectra of lanthanum and europium ions observed in the Large Helical Device2021

    • Author(s)
      Suzuki C., Koike F., Murakami I., Tamura N., Oishi, T., Nakamura N.
    • Organizer
      The 30th International Toki Conference on Plasma and Fusion Research
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 大型ヘリカル装置におけるランタノイド元素多価イオンの極端紫外スペクトル解析の進展2021

    • Author(s)
      鈴木千尋、小池文博、村上泉、田村直樹、大石鉄太郎、中村信行
    • Organizer
      第38回プラズマ・核融合学会年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Feature extraction from two-dimensional radiation images of impurity seeded plasmas on Large Helical Device2021

    • Author(s)
      K. Mukai, B. J. Peterson, G. Kawamura, K. Munechika
    • Organizer
      The 30th International Toki Conference on Plasma and Fusion Research
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 複合トレーサーによる高温プラズマ中の低Z/中間Z不純物の挙動の同時計測の試み2020

    • Author(s)
      田村直樹, 吉沼幹朗, 尹相輝, 居田克巳, 鈴木千尋, 庄司主, 向井清史, 舟場久芳, LHD実験グループ
    • Organizer
      日本物理学会2020年秋季大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Toroidal asymmetry of divertor heat load reduction in N2 or Ne seeded plasmas on LHD2020

    • Author(s)
      Kiyofumi MUKAI, Gakushi KAWAMURA, Suguru MASUZAKI, Yuki HAYASHI, Tetsutaro OISHI, Chihiro SUZUKI, Masahiro KOBAYASHI, Hirohiko TANAKA, Byron J. PETERSON, the LHD Experiment Group
    • Organizer
      29th International Toki Conference
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] A new double-tracer technique in the TESPEL scheme for a simultaneous study on behaviors of Low- and Mid/High-Z impurities in high-temperature plasmas2020

    • Author(s)
      N. Tamura, M. Yoshinuma, X. Yin, K. Ida, C. Suzuki, M. Shoji, K. Mukai, H. Funaba
    • Organizer
      23rd Topical Conference on High-Temperature Plasma Diagnostics
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Sensitivity Improvement of Infrared Imaging Video Bolometer for Divertor Plasma Measurement2020

    • Author(s)
      Kiyofumi Mukai, Byron J. Peterson, Naomichi Ezumi, Yasuto Ando, Shinsuke Oshima, Akira Miyashita, Ryota Matoike
    • Organizer
      23rd Topical Conference on High-Temperature Plasma Diagnostics
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Measurements of radial profile of isotope density ratio using bulk charge exchange spectroscopy2020

    • Author(s)
      M.Yoshinuma, K.Ida, K.Yamasaki, J.Chen, I.Murakami
    • Organizer
      23rd Topical Conference on High-Temperature Plasma Diagnostics
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] ダイバータプラズマ計測を目的としたイメージングボロメータの高感度化2020

    • Author(s)
      Kiyofumi Mukai, Byron J. Peterson, Naomichi Ezumi, Naoki Shigematsu, Shinsuke Ohshima, Akira Miyashita, Ryota Matoike
    • Organizer
      第37会プラズマ・核融合学会年会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 重元素プラズマからの複雑な発光スペクトルと統計的解析手法の可能性2020

    • Author(s)
      鈴木千尋
    • Organizer
      第37会プラズマ・核融合学会年会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Versatility and Flexibility of the Tracer-Encapsulated Solid Pellet as a Diagnostic Tool in Magnetic Fusion Plasma2019

    • Author(s)
      N. Tamura, R. Bussiahn, K.J. McCarthy
    • Organizer
      3rd European Conference on Plasma Diagnostics
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Progress of the Large Helical Device (LHD) Project Toward Understanding Plasma Confinement by 3D External Coils2019

    • Author(s)
      N. Tamura
    • Organizer
      Nature Conference
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Impurity Transport Studies using TESPEL in stellarators: A comparison between TJ-II, W7-X and LHD2019

    • Author(s)
      N. Tamura
    • Organizer
      22nd International Stellarator & Heliotron Workshop
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Radiative Divertor Using Impurity Seeding on Large Helical Device2019

    • Author(s)
      K. Mukai, S. Masuzaki, Y. Hayashi, C. Suzuki, T. Oishi, M. Kobayashi, H. Tanaka, B.J. Peterson and LHD Experiment Group
    • Organizer
      22nd International Stellarator & Heliotron Workshop
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] LHDプラズマを用いた希土類元素の軟X線スペクトル研究の進展2019

    • Author(s)
      鈴木千尋、小池文博、村上泉、田村直樹、須藤滋、Gerry O'Sullivan
    • Organizer
      プラズマ・核融合学会第36回年会
    • Related Report
      2019 Annual Research Report
  • [Presentation] LHDにおける不純物ガス入射によるダイバータ熱負荷軽減2019

    • Author(s)
      向井清史
    • Organizer
      プラズマ・核融合学会第36回年会
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] LHDにおける高ベータ重水素プラズマの熱輸送解析2019

    • Author(s)
      舟場久芳、渡邊清政、關良輔、村上定義、鈴木康浩、山田一博、安原亮、田中謙治、徳澤季彦、長壁正樹、山田弘司、榊原悟、LHD実験グループ
    • Organizer
      プラズマ・核融合学会第36回年会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Impurity Transport of Externally Injected Metal impurities in the LHD Plasma with Impurity Hole2019

    • Author(s)
      H. Funaba, N. Tamura, C. Suzuki, M. Yoshinuma, K. Ida, K. Tanaka, S. Sakakibara and LHD Experiment Group
    • Organizer
      28th International Toki Conference
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Remarks] プラズマ診断技術であるペレット入射に関する理解が進展

    • URL

      https://www-lhd.nifs.ac.jp/pub/Science/Paper_PPCF63-065002.html

    • Related Report
      2021 Annual Research Report
  • [Remarks] 異なる不純物を同時にプラズマ中に入射する新たな手法を開発

    • URL

      https://www-lhd.nifs.ac.jp/pub/Science/Paper_RSI92-063516.html

    • Related Report
      2021 Annual Research Report
  • [Remarks] LHDにおけるプラセオジム・ネオジム多価イオンの発光線同定

    • URL

      https://www-lhd.nifs.ac.jp/pub/Science/Paper_ATOMS9-46.html

    • Related Report
      2021 Annual Research Report

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Published: 2019-04-18   Modified: 2024-01-30  

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