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Study of pulse shape discrimination of inorganic scintillator including Gd

Research Project

Project/Area Number 25420901
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Nuclear engineering
Research InstitutionUniversity of Fukui

Principal Investigator

Tamagawa Yoichi  福井大学, 工学(系)研究科(研究院), 教授 (40236732)

Co-Investigator(Kenkyū-buntansha) Ogawa Izumi  福井大学, 大学院工学研究科, 准教授 (20294142)
Kobayashi Masaaki  大学共同利用機関法人高エネルギー加速器研究機構, 素核研, 名誉教授 (40013388)
Project Period (FY) 2013-04-01 – 2016-03-31
Project Status Completed (Fiscal Year 2015)
Budget Amount *help
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2015: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2014: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2013: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
KeywordsGAGGシンチレーター / 入射粒子識別 / 発光波形 / α線 / γ線 / 消光係数 / 無機シンチレーター / GAGG / 消光系数 / ガドリニウム / シンチレーター / ダブルベータ−崩壊 / ダブルベーター崩壊
Outline of Final Research Achievements

The study of pulse shape discrimination for the inorganic scintillators including Gd was performed. GSO and GAGG crystals ware used for the scintillator and alpha ray and gamma ray ware used for the incident particles. As the result, It was found that GSO crystal can not separate the events of these two particles using PSD method at the room temperature , but GAGG crystal can separate the events using shape indicator method clearly.
From this result, we tried the internal alpha/gamma event separation using large GAGG crystal for the basic study of the double beta decay experiment using GAGG.
The quenching factor for alpha/gamma was also investigated using He ion beam.

Report

(4 results)
  • 2015 Annual Research Report   Final Research Report ( PDF )
  • 2014 Research-status Report
  • 2013 Research-status Report
  • Research Products

    (9 results)

All 2015 2014 2013

All Journal Article (3 results) (of which Peer Reviewed: 3 results,  Open Access: 2 results) Presentation (6 results)

  • [Journal Article] Alpha-gamma pulse-shape discrimination in Gd3Al2Ga3O12 (GAGG): Ce3+ crystal scintillator using shape indicator2015

    • Author(s)
      Tamagawa Yoichi, Inukai Yuji, Ogawa Izumi, Kobayashi Masaaki
    • Journal Title

      NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT

      Volume: 795 Pages: 192-195

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Search for Neutrino-less Double Beta Decay with CANDLES2015

    • Author(s)
      S.Umehara, T.Kishimoto, M.Nomachi, S.Ajimura, T. Iida, K. Nakajima, K.Ichimura, K.Matsuoka, M.Saka, T. Ishikawa, D. Tanaka, M. Tanaka, T. Maeda, S.Yoshida, K.Suzuki, G.Ito, H.Kakubata, W.Wang, K. Tetsuno, Y. Tamagawa, I. Ogawa
    • Journal Title

      Physics Procedia

      Volume: 61 Pages: 283-288

    • Related Report
      2014 Research-status Report
    • Peer Reviewed
  • [Journal Article] Search for neutrino-less double beta decay of 48Ca2014

    • Author(s)
      S.Umehara,T.Kishimoto,M.Nomachi,S.Ajimura,N.Nakatani,K.Matsuoka,K.Ichimura,M.Saka,T.Ishikawa,D.Tanaka,M.Tanaka,S.Yoshida,K.Suzuki,G.Ito,H.Kakubata,W.Wang,J.Takemoto,W.M.Chan,M.Doihara,Y.Tamagawa,I.Ogawa,T.Ueno,S.Maeda,A.Yamamoto,S.Tomita,G.Fujita,A.Kawamura,T.Harada,K.Fushimi,R.Hazama,H.Ohsumi,K.Okada
    • Journal Title

      EPJ Web of Conferences

      Volume: 66 Pages: 08008-08008

    • DOI

      10.1051/epjconf/20146608008

    • Related Report
      2014 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] GAGG シンチレータ中の放射性不純物量の測定2015

    • Author(s)
      増田旭, 高橋成企, 中島恭平, 小川泉, 玉川洋一, 小林正明
    • Organizer
      日本物理学会北陸支部 定例学術講演会
    • Place of Presentation
      金沢市
    • Year and Date
      2015-11-28
    • Related Report
      2015 Annual Research Report
  • [Presentation] 二重β崩壊実験のためのCaのレーザー同位体分離実験2015

    • Author(s)
      坂本康介, 加藤勝大, 遅 智超, 森下 剣, 三橋 怜, 平田直斗, 方 浩田, 玉川洋一, 小川 泉, 仁木秀明
    • Organizer
      レーザー学会学術講演会第35回年次大会
    • Place of Presentation
      東京都港区
    • Year and Date
      2015-01-11
    • Related Report
      2014 Research-status Report
  • [Presentation] GAGGシンチレータにおける内部バックグラウンド事象の低減2014

    • Author(s)
      犬飼裕司, 小川 泉, 玉川洋一, 小林正明
    • Organizer
      2014年度日本物理学会北陸支部定例学術講演会
    • Place of Presentation
      福井大学
    • Year and Date
      2014-12-13
    • Related Report
      2014 Research-status Report
  • [Presentation] Alpha-gamma pulse shape discrimination in GAGG scintillator using shape indicator2014

    • Author(s)
      Y. Inukai, Y. Tamagawa, I. Ogawa, M. Kobayashi
    • Organizer
      nternational workshop on "Double Beta Decay and Underground Science" (DBD2014)
    • Place of Presentation
      ハワイ
    • Year and Date
      2014-10-05
    • Related Report
      2014 Research-status Report
  • [Presentation] CANDLESによる二重ベータ崩壊の研究(94) CANDLES実験の現状2014

    • Author(s)
      吉田 斉, 岸本 忠史, 鈴木耕拓, 角畑 秀一, 王 偉, Van Trang, Chan Wei Min, 鉄野高之介, 太畑貴綺, 上原拓真, 李暁龍, Temuge Batpurev, 能町 正治, 味村周平, 梅原 さおり, 飯田崇史, 中島恭平, 松岡 健次, 田中 大樹, 前田剛, 小川 泉, 玉川 洋一, 坂本康介, 吉澤真敦, 犬飼祐司, 野代翔平, 増田旭, 森下剣, 鷲野将臣, 伏見賢一
    • Organizer
      日本物理学会2014年秋季大会
    • Place of Presentation
      佐賀市
    • Year and Date
      2014-09-20
    • Related Report
      2014 Research-status Report
  • [Presentation] 単結晶GAGGシンチレータによる入射粒子識別能2013

    • Author(s)
      犬飼裕司、冨田翔吾、小川泉、玉川洋一、小林正明
    • Organizer
      2013年度日本物理学会北陸支部定期学術講演会
    • Place of Presentation
      富山大学
    • Related Report
      2013 Research-status Report

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Published: 2014-07-25   Modified: 2019-07-29  

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