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Development of pulse shape discrimination for Cherenkov lights in liquid scintillator

https://mue.repo.nii.ac.jp/records/1200
https://mue.repo.nii.ac.jp/records/1200
6031c46b-69e9-40cd-ae46-6d52caae1657
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11 Development of pulse shape discrimination for Cherenkov lights in liquid scintillator (9.7 MB)
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Item type 学術雑誌論文 / Journal Article(1)
公開日 2021-03-16
タイトル
タイトル Development of pulse shape discrimination for Cherenkov lights in liquid scintillator
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
キーワード
主題Scheme Other
主題 液体シンチレータ
キーワード
主題Scheme Other
主題 チェレンコフ光
キーワード
主題Scheme Other
主題 波形分別法
キーワード
主題Scheme Other
主題 位相幾何学情報
キーワード
言語 en
主題Scheme Other
主題 Neutrinoless Double Beta Decay
キーワード
言語 en
主題Scheme Other
主題 Liquid Scintillator
キーワード
言語 en
主題Scheme Other
主題 Cherenkov Light
キーワード
言語 en
主題Scheme Other
主題 Pulse Shape Discrimination
キーワード
言語 en
主題Scheme Other
主題 Topological Information
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 journal article
著者 FUKADA, Yosiyuki

× FUKADA, Yosiyuki

WEKO 2379

FUKADA, Yosiyuki

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ANZAI, Daisuke

× ANZAI, Daisuke

WEKO 1753
CiNii ID 9000399252642

ANZAI, Daisuke

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KAMEI, Yuto

× KAMEI, Yuto

WEKO 1639
CiNii ID 9000406296550

KAMEI, Yuto

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Narengerile

× Narengerile

WEKO 2380

Narengerile

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OBATA, Akira

× OBATA, Akira

WEKO 1253

OBATA, Akira

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MORIYAMA, Shigetaka

× MORIYAMA, Shigetaka

WEKO 1254
CiNii ID 9000237661175

MORIYAMA, Shigetaka

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HIRAIDE, Katsuki

× HIRAIDE, Katsuki

WEKO 1757
CiNii ID 9000399807192

HIRAIDE, Katsuki

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OGAWA, Izumi

× OGAWA, Izumi

WEKO 1420
CiNii ID 9000242354736

OGAWA, Izumi

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GUNJI, Takahiro

× GUNJI, Takahiro

WEKO 1829
CiNii ID 9000406296556

GUNJI, Takahiro

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HAYAMI, Ryohei

× HAYAMI, Ryohei

WEKO 1808
CiNii ID 9000406296557

HAYAMI, Ryohei

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TSUKADA, Satoru

× TSUKADA, Satoru

WEKO 1830
CiNii ID 9000406296558

TSUKADA, Satoru

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KUROSAWA, Shunsuke

× KUROSAWA, Shunsuke

WEKO 1831
CiNii ID 9000406296559

KUROSAWA, Shunsuke

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抄録
内容記述タイプ Abstract
内容記述 With a liquid scintillation used for ZICOS experiment, we measured pulse shapes in case of several radio isotopes, 60Co, 137Cs, 133Ba, and 57Co. Taking FADC timing at 60 nsec for the peak position, FADC spectra from 58.5 nsec to 80 nsec were almost same shape for each RI, however, before 58.5 nsec, we have found that those were different shape. Especially, in case of 57Co, the energy is lower than Cherenkov threshold, so that the spectra should not include Cherenkov light. Using those spectra between 57.0 nsec and 58.0 nsec(3 bins), we calculated simply χ2 and it was clearly discriminated that χ2 ≥ 0.1 should be include Cherenkov lights. This was also confirmed by Compton electrons with fixed energy and fixed direction. Obtained detection inefficiency of Cherenkov lights was observed by 21.4 ± 9.6 %. According to Compton edge events which have almost same direction as the incident γ and backgrounds events which should have isotropic direction, the detection inefficiency were 10.4 ± 0.5 % and 49.1 ± 1.4 %, respectively. They were quite different values and the inefficiency of both fixed energy and Compton edge events were statistically same. This is a direct evidence that Cherenkov lights should keep their topology even if they are emitted by around 1 MeV electron.
書誌情報 en : BULLETIN OF MIYAGI UNIVERSITY OF EDUCATION

巻 55, p. 141-150, 発行日 2021-01-29
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