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Discrimination of Cherenkov light in Liquid Scintillator for Neutrinoless Double Beta Decay Experiment
https://mue.repo.nii.ac.jp/records/678
https://mue.repo.nii.ac.jp/records/6786973e7d3-e26b-4f0f-bf6a-5200c228e468
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
Discrimination of Cherenkov light in Liquid Scintillator for Neutrinoless Double Beta Decay Experiment (3.2 MB)
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| Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2018-02-20 | |||||
| タイトル | ||||||
| タイトル | Discrimination of Cherenkov light in Liquid Scintillator for Neutrinoless Double Beta Decay Experiment | |||||
| 言語 | ||||||
| 言語 | jpn | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | ニュートリノを放出しない二重ベータ崩壊、ニュートリノ質量、液体シンチレータ、チェレンコフ光、波形分別法 | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | Neutrinoless Double Beta Decay, Neutrino Mass, Liquid Scintillator, Cherenkov Light, Pulse Shape Discrimination | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | departmental bulletin paper | |||||
| 著者 |
FUKUDA, Yoshiyuki
× FUKUDA, Yoshiyuki× KAMEI, Yuto× Narengerile× OBATA, Akira× MORIYAMA, Shigetaka× OGAWA, Izumi× GUNJI, Takahiro× HAMAYA, Ryohei× TSUKADA, Satoru |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | A liquid scintillator containing a tetrakis（isopropyl acetoacetato）zirconium has been developed for ZICOS experiment. We will use 180 tons of liquid scintillator containing 75 kg of 96Zr in the inner balloon（45 kg in fiducial volume）surrounding 64 % photo coverage of 20 inch photomultiplier. In order to reach the sensitivity ≥1027 years, we have to reduce 95 % of 208Tl decay backgrounds at least. Using Monte Carlo simulation, we could demonstrate new method using the hit pattern of PMT which received Cherenkov light, and could reduce 93 % of 208Tl background with 78 % efficiency for 0νββ signal. For the discrimination of Cherenkov light, we measured the timing pulse shape of Zr loaded liquid scintillator using FADC digitizer, and we found an inconsistent pulse shape at the rise timing with the template of scintillation. Also the event with an inconsistent pulse shape seems to have a directionality. | |||||
| 書誌情報 |
宮城教育大学紀要 en : Bulletin of Miyagi University of Education 巻 52, p. 139-147, 発行日 2018-01-31 |
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| 出版者 | ||||||
| 出版者 | 宮城教育大学 | |||||
