Development of plasma spectroscopy using magnetic dipole forbidden lines of highly ionized impurities and its feasibility

• Project/Area Number: 17340177
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Plasma science
• Research Institution: National Institute for Fusion Science
• Principal Investigator: MORITA Shigeru National Institute for Fusion Science, 大型ヘリカル研究部, 教授 (80174423)
• Co-Investigator(Kenkyū-buntansha): GOTO Motoshi 核融合科学研究所, 大型ヘリカル研究部, 助教授 (00290916) ; MUTO Sadatsugu 核融合科学研究所, 大型ヘリカル研究部, 助教授 (40260054)
• Project Period (FY): 2005 – 2008
• Project Status: Completed (Fiscal Year 2008)
• Budget Amount: ¥10,890,000 (Direct Cost: ¥9,900,000、Indirect Cost: ¥990,000); Fiscal Year 2008: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000); Fiscal Year 2007: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000); Fiscal Year 2006: ¥2,900,000 (Direct Cost: ¥2,900,000); Fiscal Year 2005: ¥3,700,000 (Direct Cost: ¥3,700,000)
• Keywords: プラズマ計測 / プラズマ分光 / 磁気双極子禁制線 / 不純物 / 核融合プラズマ / 原始分子 / 高温プラズマ / 核融合 / イオン温度 / 真空紫外 / 原子分子

Research Abstract

大型ヘリカル装置を用いて不純物多価イオンから放出される磁気双極子禁制線が可視域で強く発光していることを発見した.従来では真空紫外領域でしかできなかったプラズマコア部での不純物計測を可視域に拡張することに成功し,これを用いて不純物の定量化,空間分布,イオン温度計測及び磁気面計測等幅広いプラズマ診断応用に道を開いた.

Research Products

• [Journal Article] Experimental study of impurity screening in the edge ergodic layer of the large helical device using carbon emissions of CIII to CVI (2009)
  • Author(s): M.B.Chowdhuri, S.Morita, M.Kobayashi, M.Goto, H.Y.Zhou, S.Masuzaki, T.Morisaki, K.Narihara, I.Yamada, Y.Feng
  • Journal Title: Physics of Plasmas 16 (掲載確定)
  • Peer Reviewed
• [Journal Article] Characteristics of an absolutely calibrated flat-field extreme ultraviolet spectrometer in the 10-30A range for fusion plasma diagnostics (2008)
  • Author(s): M.B.Chowdhuri, S.Morita, M.Goto
  • Journal Title: Applied Optics 47 Pages: 135-146
  • Peer Reviewed
• [Journal Article] A simple method of H/He influx ratio measurement as a monitor for machine operation in LHD (2008)
  • Author(s): S. Morita
  • Journal Title: Plasma Fusion Research 3
  • NAID: 130000263982
  • Peer Reviewed
• [Journal Article] Systematic study of impurity pellet injection with Z=6-74 for improvement of plasma performance in LHD (2008)
  • Author(s): S. Morita
  • Journal Title: Proc. 35th EPS Conf. on Plasma Phys. 32D
• [Journal Article] Ionization balance in the rotating radiation belt accompanying comptele divertor detachment in LHD (2008)
  • Author(s): M. Goto
  • Journal Title: Plasma Fusion Research 3
  • Peer Reviewed
• [Journal Article] Determination of iron density at the plasma center using radial profile of FeKα lines in LHD (2008)
  • Author(s): S. Muto
  • Journal Title: Plasma Fusion Research 3
  • NAID: 130000264031
  • Peer Reviewed
• [Journal Article] Characteristics of an absolutely calibrated flat-field extreme ultraviolet spectrometer in the 10-30A range for fusion plasma diagnostics (2008)
  • Author(s): M. B. Chowdhuri
  • Journal Title: Applied Optics 47 Pages: 135-146
  • Peer Reviewed
• [Journal Article] Behavior of CIII to CVI emissions during recombining phase of LHD plasmas (2008)
  • Author(s): M. B. Chowdhuri
  • Journal Title: Plasma Fusion Research 3
  • Peer Reviewed
• [Journal Article] Spectroscopic evaluation of three different gratings used for a flat-field extreme ultraviolet spectrometer to monitor △n=1 transitions from medium-Z impurities in 10-30A (2008)
  • Author(s): M. B. Chowdhuri
  • Journal Title: Review of Scientific Research 79
  • Peer Reviewed
• [Journal Article] Zeff profile measurement system with an optimized Czerny-Turner visible spectrometer in large helical device (2008)
  • Author(s): H. Y. Zhou
  • Journal Title: Review of Scientific Research 79
  • Peer Reviewed
• [Journal Article] Identification and intensity analysis on forbidden magnetic dipole emission lines of highly charged Al, Ar, Ti and Fe ions in LHD (2007)
  • Author(s): R.Katai, S.Morita, M.Goto
  • Journal Title: Journal of Quantitative Spectroscopy & Radiative Transfer 107 Pages: 120-140
  • Peer Reviewed
• [Journal Article] Observation of visible and near-UV M1 transitions from highly charged Kr, Mo and Xe ions in LHD and its prospect to impurity spectroscopy for D-T burning plasmas (2007)
  • Author(s): R.Katai, S.Morita, M.Goto
  • Journal Title: Plasma Fusion Research 2
  • NAID: 130002058843
  • Peer Reviewed
• [Journal Article] Polarization separated Zeeman spectra from magnetic dipole transitions in highly charged argon in the large helical device (2007)
  • Author(s): A.Iwamae, A.Atake, A.Sakaue, R.Katai, M.Goto, S.Morita
  • Journal Title: Physics of Plasmas 14
  • Peer Reviewed
• [Journal Article] H-mode-like transition and ELM-like bursts in LHD with thick ergodiclayer (2007)
  • Author(s): S. Morita
  • Journal Title: Nuclear Fusion 47 Pages: 1033-1044
  • Peer Reviewed
• [Journal Article] Poloidal Distribution measurement of inward neutral flux in LHD (2007)
  • Author(s): M. Goto
  • Journal Title: Plasma Fusion Research 2
  • NAID: 130002058942
  • Peer Reviewed
• [Journal Article] Experimental verification of complete LTE plasma formation in hydrogen pellet cloud (2007)
  • Author(s): M. Goto
  • Journal Title: Plasma Phys.Control.Fusion 49 Pages: 1163-1176
  • Peer Reviewed
• [Journal Article] Plasma spectroscopy for magnetically confined fusion plasma (2007)
  • Author(s): M. Goto
  • Journal Title: Proceeding of 5th Int.Conf.on Atomic and Molecular Data and Their Applications(ICAMDATA) 901 Pages: 55-64
• [Journal Article] Impurity transport study of medium-Z argon by means of soft x-raypulse height analyzer in LHD (2007)
  • Author(s): S. Muto
  • Journal Title: Plasma Fusion Research 2
  • Peer Reviewed
• [Journal Article] Identification and intensity analysis on forbidden magnetic dipole emission lines of highly charged Al,Ar,Ti and Fe ions in LHD (2007)
  • Author(s): R. Katai
  • Journal Title: J.Quantitative Spectroscopy&Radiative Transfer 107 Pages: 120-140
  • Peer Reviewed
• [Journal Article] High-resolution VUV spectra of carbon,neon and argon in a wavelength range of 250 to 2300A for plasma diagnostics observed with a 3m normal incidence spectrometer in LHD (2007)
  • Author(s): R. Katai
  • Journal Title: Plasma Fusion Research 2
  • Peer Reviewed
• [Journal Article] Development of double-structure heavy-element impurity pellet for active spectroscopy of high-temperature plasmas (2007)
  • Author(s): R. Katai
  • Journal Title: Jpn.J.Appl.Phys. 46 Pages: 3667-3669
  • Peer Reviewed
• [Journal Article] Observation of visible and near-UV M1 transitions from highly charged Kr, Mo and Xe ions in LHD and its prospect to impurity spectroscopy for D-T burning plasmas (2007)
  • Author(s): R. Katai
  • Journal Title: Plasma Fusion Research 2
  • Peer Reviewed
• [Journal Article] Measurement and analysis of visible line spectra with inhomogeneous spatial distribution in LHD (2007)
  • Author(s): H. Yamazaki
  • Journal Title: Plasma Fusion Research 2
  • Peer Reviewed
• [Journal Article] Line analysis of EUV spectra from molybdenum and tungsten injected with impurity pellets in LHD (2007)
  • Author(s): M. B. Chowdhuri
  • Journal Title: Plasma Fusion Research 2
  • Peer Reviewed
• [Journal Article] Characteristics of an absolutely calibrated flat-field extreme ultraviolet spectrometer in the 10-130A range for fusion plaslna diagnostics (2007)
  • Author(s): M. B. Chowdhuri
  • Journal Title: Applied Optics 47 Pages: 135-146
  • Peer Reviewed
• [Journal Article] Polarization separated Zeeman spectra from magnetic dipole transitions in highly charged argon in the large helical device (2007)
  • Author(s): A. Iwamae
  • Journal Title: Physics of Plasmas 14
  • Peer Reviewed
• [Journal Article] Development of a wide band and compact x-ray crystal spectrometer for iron charge state distribution measurement on LHD (2007)
  • Author(s): I. Sakurai
  • Journal Title: Plasma Fusion Research 2
  • Peer Reviewed
• [Journal Article] Observation of forbidden magnetic dipole transitions emitted from highly charged argon in LHD discharges (2006)
  • Author(s): R.Katai, S.Morita, M.Goto
  • Journal Title: Journal of Plasma Fusion Research SERIES 7 Pages: 9-13
  • Peer Reviewed
• [Journal Article] Characteristics of H-mode-like discharges and ELM activities in the presence of ι/2π=1 surface at the ergodic layer in LHD (2006)
  • Author(s): S.Morita
  • Journal Title: Plasma Phys. Control. Fusion 48
• [Journal Article] Spatial distribution measurement of atomic radiation with an astigmatism-corrected Czerny-Turner-type spectrometer in the Large Helical device (2006)
  • Author(s): M.Goto
  • Journal Title: Rev. Sci. Instrum. 77
• [Journal Article] A dependence of carbon impurity transport coefficients on fuel ions in hydrogen and helium plasmas of Large Helical Device (2006)
  • Author(s): H.Nozato
  • Journal Title: Phys. Plasmas 13 Pages: 92502-92502
• [Journal Article] Radial profile measurement of impurity emissions using space-resolved 3m vacum ultraviolet spectrometer in LHD (2006)
  • Author(s): R.Katai
  • Journal Title: Rev. Sci. Instrum. 77
• [Journal Article] Observation of forbidden magnetic dipole transitions emitted from highly charged argon in LHD discharges (2006)
  • Author(s): R.Katai
  • Journal Title: J. Plasma Fusion Res. SERIES 7 Pages: 9-9
• [Journal Article] Radial argon Kα profile measured with pulse height analyzer in LHD (2006)
  • Author(s): S.Muto
  • Journal Title: J. Plasma Fusion Res. SERIES 7 Pages: 27-27
• [Journal Article] Spectroscopic studies of impurity transport of core and edge plasmas in LHD (2006)
  • Author(s): S.Morita
  • Journal Title: Plasma Science & Technology 8 Pages: 55-55
• [Journal Article] Recent progress on confinement improvement study and ion heating experiments in LHD (2005)
  • Author(s): S.Morita
  • Journal Title: Problems of Atomic Sci. and Tech. Series : Plasma Phys. 10 Pages: 3-3
• [Journal Article] A New method on recycling coefficient measurement using impurity pellet injection in a large helical device (2005)
  • Author(s): H.Nozato
  • Journal Title: Review of Scientific Instruments 76 Pages: 73503-73503
• [Journal Article] Polarization resolved Hα spectra from the large helical device : Emission location, temperature, and inward flux of neutral hydrogen (2005)
  • Author(s): A.Iwamae
  • Journal Title: Physics of Plasmas 12 Pages: 42501-42501
• [Journal Article] Measurements of gas temperature in high-density helicon-wave H_2 plasmas by diode laser absorption spectroscopy (2005)
  • Author(s): M.Aramaki
  • Journal Title: Japanese Journal of Applied Physics 44 Pages: 6759-6759
• [Journal Article] Overview of the latest HT-7 experiments (2005)
  • Author(s): B.Wan
  • Journal Title: Nuclear Fusion 45
• [Presentation] Radial profile measurement of impurity line emissions using EUV spectroscopy in LHD (2009)
  • Author(s): 董春鳳
  • Organizer: 日本物理学会2009年春季大会
  • Place of Presentation: 立教大学・池袋キャンパス
  • Year and Date: 2009-03-30
• [Presentation] Experimental study of impurity transport using Zeff profile in NBI-sustained plasma with hydrogen and carbon pellets injection on LHD (2009)
  • Author(s): H. Y. Zhou
  • Organizer: 日本物理学会2009年春季大会
  • Place of Presentation: 立教大学・池袋キャンパス
  • Year and Date: 2009-03-30
• [Presentation] LHDにおけるプラズマ周辺炭素輸送と密度限界 (2009)
  • Author(s): 森田繁
  • Organizer: 日本物理学会2008年春季大会
  • Place of Presentation: 立教大学・池袋キャンパス
  • Year and Date: 2009-03-27
• [Presentation] LHDにおける水素ペレット入射後の不純物の振舞い (2008)
  • Author(s): 森田繁
  • Organizer: 日本物理学会2008年秋季大会
  • Place of Presentation: 岩手大学・上田キャンパス
  • Year and Date: 2008-09-23
• [Presentation] 炭素ペレット溶発雲の分光計測II (2008)
  • Author(s): 後藤基志
  • Organizer: 日本物理学会2008年秋季大会
  • Place of Presentation: 岩手大学・上田キャンパス
  • Year and Date: 2008-09-23
• [Presentation] Effect of magnetic field structures and background ionson carb on impurity screening in edge ergodic layer in LHD (2008)
  • Author(s): M. B. Chowdhuri
  • Organizer: 日本物理学会2008年秋季大会
  • Place of Presentation: 岩手大学・上田キャンパス
  • Year and Date: 2008-09-23
• [Presentation] Zeff analysis of visible bremsstrahlung with different density profiles in LHD (2008)
  • Author(s): H. Y. Zhou
  • Organizer: 日本物理学会2008年秋季大会
  • Place of Presentation: 岩手大学・上田キャンパス
  • Year and Date: 2008-09-23
• [Presentation] LHDにおけるライマンアルファ線のプロファイル計測 (2008)
  • Author(s): 後藤 基志
  • Organizer: 日本物理学会2008年春季大会
  • Place of Presentation: 近畿大学・東大阪キャンパス
  • Year and Date: 2008-03-26
• [Presentation] Edge impurity transport study using carbon emissions of CIII to CVI in LHD with ergodic layer (2008)
  • Author(s): M. B. Chowdhuri
  • Organizer: 日本物理学会2008年春季大会
  • Place of Presentation: 近畿大学・東大阪キャンパス
  • Year and Date: 2008-03-26
• [Presentation] Developlnent of Zeff profile measurement system in LHD (2008)
  • Author(s): H. Y. Zhou
  • Organizer: 日本物理学会2008年春季大会
  • Place of Presentation: 近畿大学・東大阪キャンパス
  • Year and Date: 2008-03-26
• [Presentation] LHDにおける水素及び不純物ペレット(Z=6-42)入射時のプラズマ応答 (2008)
  • Author(s): 森田 繁
  • Organizer: 日本物理学会2008年春季大会
  • Place of Presentation: 近畿大学・東大阪キャンパス
  • Year and Date: 2008-03-23
• [Presentation] 炭素ペレット溶発雲の分光計測 (2007)
  • Author(s): 後藤 基志
  • Organizer: 日本物理学会2007年秋季大会
  • Place of Presentation: 北海道大学・札幌キャンパス
  • Year and Date: 2007-09-24
• [Presentation] Behavior of CIII-VI emissions from different edge magnetic field structures in LHD (2007)
  • Author(s): M. B. Chowdhuri
  • Organizer: 日本物理学会2008年秋季大会
  • Place of Presentation: 北海道大学・札幌キャンパス
  • Year and Date: 2007-09-24
• [Presentation] 燃焼プラズマにおける磁気双極子禁制線を用いた不純物及びα粒子計測の可能性 (2007)
  • Author(s): 森田繁
  • Organizer: 日本物理学会2007年秋季大会
  • Place of Presentation: 北海道大学・札幌キャンパス
  • Year and Date: 2007-09-21
• [Presentation] LHDにおける高Zイオンの禁制磁気双極子(M1)遷移に関する分光学的研究 (2007)
  • Author(s): 片井隆志
  • Organizer: 日本物理学会2007年春季大会
  • Place of Presentation: 鹿児島大学
  • Year and Date: 2007-03-19
• [Presentation] LHDでの高速陽子衝突を考慮した禁制磁気双極子(M1)遷移発光線の研究 (2006)
  • Author(s): 片井隆志
  • Organizer: 日本物理学会2006年春季大会
  • Place of Presentation: 愛媛大学
  • Year and Date: 2006-03-30
• [Presentation] LHDにおけるアルゴン多価イオン禁制磁気双極子(M1)発光線強度の解析 (2005)
  • Author(s): 片井隆志
  • Organizer: 日本物理学会2005年秋季大会
  • Place of Presentation: 同志社大学・田辺キャンパス
  • Year and Date: 2005-09-19
• [Book] プラズマ診断の基礎と応用 (319-326) (2006)
  • Author(s): 森田繁
  • Publisher: コロナ社
• [Book] プラズマ診断の基礎と応用 (2006)
  • Author(s): 森田 繁(他21名)
  • Total Pages: 377
  • Publisher: プラズマ・核融合学会