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Helium Collisional Radiative Model and Plasma Diagnostics by Using Infrared Spectra

Research Project

Project/Area Number 24540532
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Plasma science
Research InstitutionKyoto University

Principal Investigator

KADO Shinichiro  京都大学, エネルギー理工学研究所, 准教授 (10300732)

Project Period (FY) 2012-04-01 – 2015-03-31
Project Status Completed (Fiscal Year 2014)
Budget Amount *help
¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2014: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2013: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2012: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Keywords近赤外スペクトル / 衝突輻射モデル / 輻射捕獲 / ダイバータ模擬装置 / MAP-II / ヘリウム分光
Outline of Final Research Achievements

In order to determine the electron density and temperature in fusion-relevant divertors and in divertor-simulating plasma facilities, the so-called "intensity ratio technique" of atomic helium line (He I) based on a collisional-radiative (CR) model has widely been used. Researchers have now recognized that the CR model will not give a correct answer unless the radiation trapping process between resonant singlet-P states and the ground state 1S is taken into consideration properly in low-temperature plasmas. I this research, we proposed a noble approach to measure the population of the single 2P states, by using a near infrared (NIR) radiative transition of singlet 2S-2P at 2058.130 nm. We developed a NIR spectrometer and success in measuring the line of interest in the MAP-II divertor simulator. The spatial distribution of the line exhibited a significant broadening in the spatial distribution, which indicates the effect of radiation trapping for the resonant state.

Report

(4 results)
  • 2014 Annual Research Report   Final Research Report ( PDF )
  • 2013 Research-status Report
  • 2012 Research-status Report
  • Research Products

    (17 results)

All 2015 2014 2013 2012

All Journal Article (5 results) (of which Peer Reviewed: 4 results,  Acknowledgement Compliant: 2 results,  Open Access: 1 results) Presentation (10 results) (of which Invited: 1 results) Book (2 results)

  • [Journal Article] 理科教育の現場にプラズマ・核融合を2015

    • Author(s)
      門 信一郎
    • Journal Title

      プラズマ・核融合学会誌

      Volume: 91 Pages: 99-106

    • Related Report
      2014 Annual Research Report
    • Open Access
  • [Journal Article] Measurement of Near-Infrared Atomic Helium Line for the Evaluation of Radiation Trapping in Map-II Divertor Simulator2014

    • Author(s)
      S. Kado, Y. Iida, T. Amemiya
    • Journal Title

      J. Phys. Soc. Japan. (conf. proc.)

      Volume: 1

    • DOI

      10.7566/jpscp.1.015019

    • Related Report
      2014 Annual Research Report 2013 Research-status Report
    • Peer Reviewed
  • [Journal Article] Liquid-Crystal-Based Tunable Lyot Filter Spectra Camera System Combined with Color CCD Detector2014

    • Author(s)
      Morifumi YAMANO, Shinichiro KADO, Satoshi KUSHITA, Satoshi WATANABE, and Satoru TANAKA
    • Journal Title

      JPS Conf. Proc.

      Volume: 1

    • DOI

      10.7566/jpscp.1.015015

    • Related Report
      2014 Annual Research Report 2013 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Thermal equilibrium/disequilibrium features in the excited-state temperature of atomic helium in MAP-II divertor simulator2014

    • Author(s)
      Shinichiro Kado
    • Journal Title

      Journal of Nuclear Materials

      Volume: - Pages: 902-906

    • DOI

      10.1016/j.jnucmat.2014.12.089

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Journal of Nuclear Materials2013

    • Author(s)
      Y. Iida, S. Kado, S. Tanaka
    • Journal Title

      Journal of Nuclear Materials

      Volume: xxx Pages: S1237-S1240

    • DOI

      10.1016/j.jnucmat.2013.01.274

    • Related Report
      2012 Research-status Report
    • Peer Reviewed
  • [Presentation] 理科教科書における光スペクトル再定義の提案2015

    • Author(s)
      門 信一郎
    • Organizer
      日本物理学会第70回年次大会
    • Place of Presentation
      早稲田大学
    • Year and Date
      2015-03-21 – 2015-03-24
    • Related Report
      2014 Annual Research Report
  • [Presentation] Excited state temperature of atomic helium in MAP-II steady-state linear divertor simulator2014

    • Author(s)
      Shinichiro Kado
    • Organizer
      Decennial IAEA Technical Meeting on Atomic, Molecular and Plasma-Material Interaction Data for Fusion Science and Technology
    • Place of Presentation
      Daejeon, Republic of Korea
    • Year and Date
      2014-12-15 – 2014-12-19
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] Thermal Equilibrium/Disequilibrium Features in the Excited State Temperature of Atomic Helium in MAP-II Divertor Simulator2014

    • Author(s)
      Shinichiro Kado
    • Organizer
      21st International Conference on Plasma Surface Interactions in Controlled Fusion Devices
    • Place of Presentation
      Ongaku-do, Kanazawa, Ishikawa, Japan
    • Year and Date
      2014-05-26 – 2014-05-30
    • Related Report
      2014 Annual Research Report
  • [Presentation] 円筒プローブを用いた磁化プラズマ中の電子エネルギー分布関数計測2014

    • Author(s)
      門信一郎,渡邉智史,山野守史
    • Organizer
      日本物理学会第69回年次大会
    • Place of Presentation
      東海大学(神奈川県平塚市)
    • Related Report
      2013 Research-status Report
  • [Presentation] Measurement of Near-Infrared Atomic Helium Line for the Evaluation of Radiation Trapping in Map-II Divertor Simulator2013

    • Author(s)
      S. Kado, Y. Iida, T. Amemiya
    • Organizer
      The 12th Asia Pacific Physics Conference (APPC12)
    • Place of Presentation
      Makuhari, Chiba, Japan
    • Related Report
      2013 Research-status Report
  • [Presentation] Achieving the Thermal Equilibrium Between Electrons, Ions and Neutrals In Low-Temperature Detached Recombining Plasmas2013

    • Author(s)
      Shinichiro Kado
    • Organizer
      The 4th International Symposium of Advanced Energy Science ~Principle of Zero-Emission Energy~
    • Place of Presentation
      Kyoto University, Uji, Japan
    • Related Report
      2013 Research-status Report
  • [Presentation] Anomalies in Various Temperature Diagnostics Using Spectroscopy and Laser Thomson Scattering2013

    • Author(s)
      Shinichiro Kado
    • Organizer
      Japan-Korea Workshop on Anomalies in Plasma Science and Plasma Diagnostics
    • Place of Presentation
      Dong-A University, Busan, Korea
    • Related Report
      2013 Research-status Report
  • [Presentation] 液晶リオフィルタースペクトラカメラにおけるカラーCCD検出器の適用2013

    • Author(s)
      門 信一郎
    • Organizer
      日本物理学会 第68回年次大会 26aEF-10
    • Place of Presentation
      広島大学
    • Related Report
      2012 Research-status Report
  • [Presentation] プラズマイメージング分光のための可変波長液晶リオフィルタスペクトラカメラシステムの実用化2012

    • Author(s)
      門 信一郎
    • Organizer
      日本物理学会2012年秋季大会 20pFA-9
    • Place of Presentation
      横浜国立大学
    • Related Report
      2012 Research-status Report
  • [Presentation] ヘリウム原子近赤外分光法のダイバータ模擬装置MAP-IIへの適用2012

    • Author(s)
      門 信一郎
    • Organizer
      プラズマ・核融合学会 第29回年会 29pC04
    • Place of Presentation
      クローバープラザ(福岡県春日市)
    • Related Report
      2012 Research-status Report
  • [Book] Reflections on the Fukushima Daiichi Nuclear Accident: Toward Social-Scientific Literacy and Engineering Resilience : chapter3: Analysis of Radioactive Release from the Fukushima Daiichi Nuclear Power Station2014

    • Author(s)
      S. Tanaka, S. Kado
    • Total Pages
      454
    • Publisher
      Springer
    • Related Report
      2014 Annual Research Report
  • [Book] Textbook for Japan-Korea Seminar 2012 for Plasma Diagnostics, 2012.8.22-252012

    • Author(s)
      Shinichiro Kado
    • Total Pages
      13
    • Publisher
      Organization committee for Japan-Korea Seminar 2012 for Plasma Diagnostics
    • Related Report
      2012 Research-status Report

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Published: 2013-05-31   Modified: 2019-07-29  

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