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Electron density visualization technique for elucidation of production mechanism of reactive species

Research Project

Project/Area Number 18H01418
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 21010:Power engineering-related
Research InstitutionSaitama University

Principal Investigator

Inada Yuki  埼玉大学, 理工学研究科, 助教 (00735532)

Co-Investigator(Kenkyū-buntansha) 前山 光明  埼玉大学, 理工学研究科, 教授 (00196875)
Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥17,940,000 (Direct Cost: ¥13,800,000、Indirect Cost: ¥4,140,000)
Fiscal Year 2020: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2019: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2018: ¥12,610,000 (Direct Cost: ¥9,700,000、Indirect Cost: ¥2,910,000)
Keywords大気圧プラズマ / 電子密度 / 化学活性種 / 活性種
Outline of Final Research Achievements

The reactive species generated in atmospheric-pressure nonthermal plasma, e.g. a streamer discharge, has been expected to be utilized in wide range application fields, such as environmental pollution control, plasma-assisted ignition and combustion, plasma medicine, and plasma agriculture. However, the production mechanism of the reactive species is not fully understood. This difficulty is partially caused by the fact that the electron density determination using conventional measurement systems has been extremely difficult due to spatial non-reproducibility of the atmospheric-pressure nonthermal plasma and the low electron density in the plasma. Here, we developed a highly sensitive, single-shot electron density sensor capable of visualizing a two-dimensional electron density distribution over the streamer discharge in an unmeasurable phase.

Academic Significance and Societal Importance of the Research Achievements

大気圧下で生成された放電プラズマの内部では、反応性に富んだ化学活性種が効率よく産出される。化学活性種の応用技術は、燃焼技術や環境汚染物質の浄化技術、特定疾患の選択的治療技術などに代表されるよう多岐にわたるが、その生成機構には未解明な部分が数多く存在する。これは、大気圧プラズマの挙動が非常に難解であるために、化学活性種の生成源である電子の密度が現状技術では測定できないことが一因として挙げられる。さらに電子密度が低いことも、測定を困難にしている。そこで本研究では、大気圧プラズマ内の2次元電子密度分布が高感度かつシングルショットで撮影できる計測ツールを開発した。

Report

(4 results)
  • 2021 Final Research Report ( PDF )
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • 2018 Annual Research Report
  • Research Products

    (15 results)

All 2022 2021 2020 2019

All Journal Article (4 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 4 results) Presentation (11 results) (of which Int'l Joint Research: 5 results,  Invited: 7 results)

  • [Journal Article] Recent Study on Interruption Phenomenon of High Current Arc2020

    • Author(s)
      INADA Yuki、FUJINO Takayasu
    • Journal Title

      The Journal of The Institute of Electrical Engineers of Japan

      Volume: 140 Issue: 6 Pages: 354-357

    • DOI

      10.1541/ieejjournal.140.354

    • NAID

      130007849980

    • ISSN
      1340-5551, 1881-4190
    • Year and Date
      2020-06-01
    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Overview and Prospect2020

    • Author(s)
      INADA Yuki
    • Journal Title

      The Journal of The Institute of Electrical Engineers of Japan

      Volume: 140 Issue: 6 Pages: 366-367

    • DOI

      10.1541/ieejjournal.140.366

    • NAID

      130007849918

    • ISSN
      1340-5551, 1881-4190
    • Year and Date
      2020-06-01
    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Measurement of electron velocity distribution function in a pulsed positive streamer discharge in atmospheric-pressure air2019

    • Author(s)
      Tomita Kentaro、Inada Yuki、Komuro Atsushi、Zhang Xiang、Uchino Kiichiro、Ono Ryo
    • Journal Title

      Journal of Physics D: Applied Physics

      Volume: 53 Issue: 8 Pages: 08LT01-08LT01

    • DOI

      10.1088/1361-6463/ab58b4

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Two-dimensional electron density measurement of pulsed positive secondary streamer discharge in atmospheric-pressure air2019

    • Author(s)
      Inada Yuki、Komuro Atsushi、Ono Ryo、Kumada Akiko、Hidaka Kunihiko、Maeyama Mitsuaki
    • Journal Title

      Journal of Physics D: Applied Physics

      Volume: 52 Issue: 18 Pages: 185204-185204

    • DOI

      10.1088/1361-6463/ab0725

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Presentation] レーザを用いたプラズマ診断技術の開発-電子密度、乱流、電界-2022

    • Author(s)
      稲田優貴
    • Organizer
      2022年度第1回静電気学会研究会
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] プラズマ診断・計測2021

    • Author(s)
      稲田優貴
    • Organizer
      応用物理学会プラズマエレクトロニクス分科会プラズマエレクトロニクスインキュベーションホール
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] High Spatial Resolution Measurement of Electric Field in Positive Secondary Streamer Discharge under Atmospheric-Pressure Air2021

    • Author(s)
      Y. Inada, T. Shioda, R. Nakamura, M. Maeyama, A. Kumada and R. Ono
    • Organizer
      The 74th Annual Gaseous Electronics Conference (GEC2021)
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Fundamental-Experimental: Visualization Technique of Atmospheric Pressure Plasmas2021

    • Author(s)
      Yuki Inada
    • Organizer
      38th JSPF Annual Meeting
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 研究テーマの創出2021

    • Author(s)
      稲田優貴, 大西亘, 中野裕介
    • Organizer
      電気学会基礎・材料・ 共通部門 若手チャプタ企画若手研究者向けオンライン講演会
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] 空間制御された大気圧空気中正極性2次ストリーマ放電に対する電子密度、換算電界、発光強度の包括的測定2021

    • Author(s)
      稲田優貴,塩田達俊,中村亮介,小野亮,前山光明
    • Organizer
      SPP-38/SPSM33
    • Related Report
      2019 Annual Research Report
  • [Presentation] Two-Dimensional Electron Density Measurement over Streamer Discharge in Atmospheric-Pressure Air Using Laser Wavefront Sensor2019

    • Author(s)
      Y. Inada
    • Organizer
      13th Frontiers in Low-Temperature Plasma Diagnostics & 1st Frontiers in Low-Temperature Plasma Simulations
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 空間制御された大気圧空気中正極性ストリーマ放電の 2次元電子密度分布測定2019

    • Author(s)
      稲田優貴, 小野亮, 小室淳史, 熊田亜紀子, 日高邦彦, 前山光明
    • Organizer
      静電気学会全国大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Comparison of Two-Dimensional Electron Density Distribution between Positive Primary and Secondary Streamer Discharge in Atmospheric-Pressure Air2019

    • Author(s)
      Y. Inada, A. Komuro, R. Ono, A. Kumada, K. Hidaka, M. Maeyama
    • Organizer
      24th International Symposium on Plasma Chemistry (ISPC 24)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Two-dimensional electron density measurement of streamer discharge in atmospheric-pressure air2019

    • Author(s)
      Y. Inada
    • Organizer
      XXXIV International Conference on Phenomena in Ionized Gases (XXXIV ICPIG) & 10th International Conference on Reactive Plasmas (ICRP-10)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] プラズマの基礎と計測技術2019

    • Author(s)
      稲田 優貴
    • Organizer
      第30回 プラズマエレクトロニクス講習会
    • Related Report
      2018 Annual Research Report
    • Invited

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Published: 2018-04-23   Modified: 2023-01-30  

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