A Basic R&D of the veto counter using a scintillator made from new material for the K0 rare decay experiment
Project/Area Number |
16K05368
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Research Field |
Particle/Nuclear/Cosmic ray/Astro physics
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Research Institution | Yamagata University |
Principal Investigator |
Yoshida Hiroshi 山形大学, 学士課程基盤教育機構, 教授 (80241727)
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Research Collaborator |
TAJIMA Yasuhisa 山形大学, 学士課程基盤教育機構教育企画部, 准教授 (50311577)
SASAKI Miki
SEKI Yuuto
IWASA Miwa
OIKAWA Hiroki
SUGIHARA Yuuta
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Project Period (FY) |
2016-04-01 – 2019-03-31
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Project Status |
Completed (Fiscal Year 2018)
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Budget Amount *help |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2018: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2017: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2016: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
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Keywords | 粒子線検出器 / カロリメーター / シンチレーター / 波長変換ファイバー / シンチレーションファイバー / 蛍光寿命 / シンチレックス / MPPC / 粒子測定技術 / 素粒子実験 / 実験核物理 |
Outline of Final Research Achievements |
We made basic R&Ds on scintillators and optical devices which compose veto counters of E14 STEP 2 planned as the next project of the K0 rare decay experiment at J-PARC. Especially, we evaluated the capability of a new plastic scintillator "Scintirex" made of polyethylene naphthalate (PEN) as a component of a sandwich calorimeter. We obtained systematic data which showed the existence of temperature quenching and thermoluminescence of the Scintirex. A prototype sampling calorimeter which consisted of lead plates and Scintrex plates was tested by using the positron beam at ELPH. The obtained data showed good linear response and energy resolution. A new generation MPPC could be operated stably under high counting rates with a suitably designed electrical circuit. We have measured fluorescence spectra and decay curves for some polystyrene-based plastic scintillators with the use of a short pulse light source in the wide range from visible to vacuum ultraviolet at UVSOR.
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Academic Significance and Societal Importance of the Research Achievements |
2011年に産学連携事業により登場した新素材について、実際の検出器に応用してその性能を実証できた一方で、得てして応用先行になりがちなところ、その基礎物性の研究にも取り組み、その素材がもっている欠点(温度消光や熱発光等)についても系統的な測定データを得るなどして、基礎的な裏付けを与えることができた。また、新世代MPPC等新しいデバイスを、素粒子実験の将来計画に効果的に採用できることを実証できた。
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Report
(4 results)
Research Products
(8 results)
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[Journal Article] First measurement of coherent double neutral-pion photoproduction on the deuteron at the incident energy below 0.9 GeV2017
Author(s)
T. Ishikawa, H. Fujimura, H. Fukasawa, R. Hashimoto, Q. He, Y. Honda, T. Iwata, S. Kaida, H. Kanda, J. Kasagi, A. Kawano, S. Kuwasaki, K. Maeda, S. Masumoto, M. Miyabe, F. Miyahara, K. Mochizuki, N. Muramatsu, A. Nakamura, K. Nawa et al.
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Journal Title
Physics Letters B
Volume: 印刷中
Pages: 398-402
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
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