13C(α, n)16O background in a liquid scintillator based neutrino experiment

ZHAO Jie; YU Ze-Yuan; LIU Jiang-Lai; LI Xiao-Bo; ZHANG Fei-Hong; XIA Dong-Mei

doi:10.1088/1674-1137/38/11/116201

Chinese Physics C> 2014, Vol. 38> Issue(11) : 116201 DOI: 10.1088/1674-1137/38/11/116201

¹³C(α, n)¹⁶O background in a liquid scintillator based neutrino experiment

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Abstract：
α from natural radioactivity may interact with a nucleus and emit a neutron. The reaction introduces the background to the liquid scintillator (LS) based neutrino experiments. In the LS detector, α comes from ²³⁸U, ²³²Th, and ²¹⁰Po decay chains. For Gadolinium-doped LS (Gd-LS) detector, α also comes from ²²⁷Ac. The nucleus ¹³C is a natural component of Carbon which is rich in the LS. The background rate and spectrum should be subtracted carefully from the neutrino candidates. This paper describes the calculation of neutron yield and spectrum with uncertainty estimated. The results are relevant for many existing neutrino experiments and future LS or Gd-LS based experiments.

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ZHAO Jie, YU Ze-Yuan, LIU Jiang-Lai, LI Xiao-Bo, ZHANG Fei-Hong and XIA Dong-Mei. ¹³C(α, n)¹⁶O background in a liquid scintillator based neutrino experiment[J]. Chinese Physics C, 2014, 38(11): 116201. doi: 10.1088/1674-1137/38/11/116201

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Received: 2013-12-24
Revised: 2014-03-04

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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

¹³C(α, n)¹⁶O background in a liquid scintillator based neutrino experiment

Corresponding author: YU Ze-Yuan,

Received Date: 2013-12-24

Accepted Date: 2014-03-04

Available Online: 2014-11-05

Abstract: α from natural radioactivity may interact with a nucleus and emit a neutron. The reaction introduces the background to the liquid scintillator (LS) based neutrino experiments. In the LS detector, α comes from ²³⁸U, ²³²Th, and ²¹⁰Po decay chains. For Gadolinium-doped LS (Gd-LS) detector, α also comes from ²²⁷Ac. The nucleus ¹³C is a natural component of Carbon which is rich in the LS. The background rate and spectrum should be subtracted carefully from the neutrino candidates. This paper describes the calculation of neutron yield and spectrum with uncertainty estimated. The results are relevant for many existing neutrino experiments and future LS or Gd-LS based experiments.

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¹³C(α, n)¹⁶O background in a liquid scintillator based neutrino experiment

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通讯作者: 陈斌, bchen63@163.com

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¹³C(α, n)¹⁶O background in a liquid scintillator based neutrino experiment

Corresponding author: YU Ze-Yuan,

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