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Measurements of excitation and fragmentation cross sections of plasma processing gases by electron impact

Research Project

Project/Area Number 26400536
Research Category

Grant-in-Aid for Scientific Research (C)

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

Principal Investigator

SAKAI Yasuhiro  東邦大学, 理学部, 教授 (90235127)

Research Collaborator TAKAHASHI Karin  
SAKAUE Hiroyuki  
HASEGAWA Toru  
KATO Daiji  
MURAKAMI Izumi  
MIYAUCHI Naoya  
Project Period (FY) 2014-04-01 – 2017-03-31
Project Status Completed (Fiscal Year 2016)
Budget Amount *help
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2016: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2015: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2014: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Keywordsプラズマプロセス / イオン化解離 / 同位体効果 / 二電子励起状態 / 微分断面積 / 一般化振動子強度 / フラグメント生成 / 混合ガス法 / エネルギー損失分光法 / 直接モンテカルロ法
Outline of Final Research Achievements

In this work, the "mixed gas method" was established first to determine the absolute cross sections for excitation and fragment formation of plasma processing gases. As the second steps, we carried out the scattered electron-ion coincidence experiment to discuss the doubly excited states and their decay processes for molecular nitrogen and deuterium, respectively. We determined the double differential cross sections and generalized oscillator strengths of molecular deuterium, and specified that the dissociative ionization was more difficult to occur than hydrogen by isotope effect. In addition, we obtained electron energy-loss spectra of tetrafluoromethane. The part of results were published in “Eur. Phys. Journal D”, and were reported in several international conferences and domestic academic meetings.

Report

(4 results)
  • 2016 Annual Research Report   Final Research Report ( PDF )
  • 2015 Research-status Report
  • 2014 Research-status Report
  • Research Products

    (12 results)

All 2017 2016 2015 2014 Other

All Journal Article (2 results) (of which Peer Reviewed: 2 results,  Acknowledgement Compliant: 2 results) Presentation (9 results) (of which Int'l Joint Research: 3 results,  Invited: 2 results) Remarks (1 results)

  • [Journal Article] Doubly excited states of molecular nitrogen by scattered electron-ion coincidence measurements2017

    • Author(s)
      Karin Takahashi, Toru Hasegawa, and Yasuhiro Sakai
    • Journal Title

      The European Physical Journal  D

      Volume: 71 Issue: 3

    • DOI

      10.1140/epjd/e2017-70465-7

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Isotope effect in dissociation processes of deuterated molecules from doubly excited states2017

    • Author(s)
      Yasuhiro Sakai, Karin Takahashi, Toru Hasegawa, Naoya Miyauchi, Daiji Kato, Izumi Murakami, and Hiroyuki A. Sakaue
    • Journal Title

      Research Report NIFS-PROC.

      Volume: 103 Pages: 26-29

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Presentation] 重水素化子の解離反応における同位体効果2017

    • Author(s)
      酒井康弘,高橋果林,長谷川徹,本間謙太郎,宮内直弥,加藤太治,村上泉,坂上裕之
    • Organizer
      日本物理学会第72回年次大会(2017年)
    • Place of Presentation
      大阪大学(大阪府・豊中市)
    • Year and Date
      2017-03-18
    • Related Report
      2016 Annual Research Report
  • [Presentation] Dissociative Ionization Processes of Molecules by Scattered Electron-Ion Coincidence Measurements2016

    • Author(s)
      T. Hasegawa, K. Takahashi, K. Homma, S. Oomori, N. Miyauchi, and Y. Sakai
    • Organizer
      10th High-Tech Research Center International Symposium
    • Place of Presentation
      東邦大学(千葉県・船橋市)
    • Year and Date
      2016-12-10
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 散乱電子-イオン同時計測で探る分子の解離性イオン化過程2016

    • Author(s)
      高橋果林,長谷川徹,本間謙太郎,大森祥太,宮内直弥,酒井康弘,加藤太治,村上泉,坂上裕之
    • Organizer
      原子衝突学会第41回年会
    • Place of Presentation
      富山大学(富山県・富山市)
    • Year and Date
      2016-12-10
    • Related Report
      2016 Annual Research Report
  • [Presentation] 重水素分子の解離性イオン化における同位体効果2016

    • Author(s)
      高橋果林,長谷川徹,宮内直弥,加藤太治,村上泉,坂上裕之,酒井康弘
    • Organizer
      日本物理学会 2016年秋季大会
    • Place of Presentation
      金沢大学(石川県・金沢市)
    • Year and Date
      2016-09-15
    • Related Report
      2016 Annual Research Report
  • [Presentation] Isotope effect in dissociation processes of deuterated molecules from doubly excited states2016

    • Author(s)
      Y. Sakai, K. Takahashi, T. Hasegawa, N. Miyauchi, D. Kato, I. Murakami, and H. A. Sakaue
    • Organizer
      The 6th China-Japan-Korea Joint Seminar on Atomic and Molecular Processes in Plasma (AMPP2016)
    • Place of Presentation
      Chengdu(China)
    • Year and Date
      2016-07-28
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 散乱電子‐イオン同時計測による重水素分子の二電子励起状態の研究2015

    • Author(s)
      高橋果林、長谷川徹、荒巻佑介、宮内直弥、酒井康弘、加藤太治(核融研)、 坂上裕之(核融研)
    • Organizer
      原子衝突学会第40回年会(ホットトピックス講演)
    • Place of Presentation
      首都大学東京、南大沢キャンパス(東京都・八王子市)
    • Year and Date
      2015-09-30
    • Related Report
      2015 Research-status Report
    • Invited
  • [Presentation] 散乱電子‐イオン同時計測による窒素分子の二電子励起状態の研究2015

    • Author(s)
      長谷川徹, 高橋果林, 酒井康弘
    • Organizer
      日本物理学会2015年秋季大会
    • Place of Presentation
      関西大学千里山キャンパス(大阪府・吹田市)
    • Year and Date
      2015-09-17
    • Related Report
      2015 Research-status Report
  • [Presentation] Doubly excited states of molecular nitrogen by scattered electron-ion coincidence measurements2015

    • Author(s)
      T. Hasegawa, K. Takahashi, and Y.Sakai
    • Organizer
      XIX International Symposium on Electron-Molecule Collisions and Swarms (POSMOL2015)
    • Place of Presentation
      LISBOA, PORTUGAL
    • Year and Date
      2015-07-18
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research
  • [Presentation] Mixed gas method for determinations of differential cross sections2014

    • Author(s)
      Y. Yamaguchi, N. Kaneoya, M. Suzuki, K. Takahashi, and Y. Sakai.
    • Organizer
      39th Annual Meeting of the Atomic Collision Society of Japan(原子衝突学会第39回年会)
    • Place of Presentation
      東北大学(宮城県・仙台市)
    • Year and Date
      2014-10-05 – 2014-10-06
    • Related Report
      2014 Research-status Report
  • [Remarks] 東邦大学 教育・研究業績データベース 理学部 物理学科 原子過程科学教室

    • URL

      http://gyoseki.toho-u.ac.jp/thuhp/KgApp?kozac=26050700&year=2016

    • Related Report
      2016 Annual Research Report

URL: 

Published: 2014-04-04   Modified: 2018-03-22  

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