Development of an array of liquid-scintillator-based bar detectors: SABRE

Development of an array of liquid-scintillator-based bar detectors: SABRE
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开发一系列基于液体闪烁体的条形探测器:SABRE

DOI:
10.1016/j.nima.2018.08.051
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发表时间:
2018
期刊:
Detectors and Associated Equipment
影响因子:
--
通讯作者:
O’Neill, J.
O’Neill, J.
中科院分区:
--
文献类型:
--
作者:
Febbraro, M.;Walter, D.;Chipps, K.A.;Pain, S.D.;Temanson, E.;Toomey, R.;Atencio, A.;Thornsberry, C.R.;Smith, K.;O’Neill, J.

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一系列基于液体闪烁体技术的中子探测器已经开发出来,用于核反应研究,特别是放射性离子束(RIB)的测量。 RIB 的反应测量通常涉及低反应产率和高伽马诱导背景,这需要高立体角覆盖、高效率和背景降低能力。反应中子的运动学需要具有良好分辨率的能量和位置确定,但最好没有大量读数以最小化成本。为了满足这些要求,用于反应实验的棒闪烁阵列 (SABRE) 由五个 12 英寸长、2 英寸直径的棒探测器组成,探测器充满有机液体闪烁体,两端均盖有单独读出的超级碱性光电倍增管 (PMT)。闪烁体混合物的内部纯化改善了光收集。将讨论液体闪烁体的开发以及 SABRE 的设计和调试。
An array of neutron detectors based on liquid scintillator technology has been developed for nuclear reaction studies, in particular measurements with radioactive ion beams (RIBs). Reaction measurements with RIBs often involve low reaction yields and high gamma-induced backgrounds, which requires high solid angle coverage, high efficiency, and background reduction capability. The kinematics of the reaction neutrons require energy and position determination with good resolution, but preferably without a large number of readouts to minimize cost. To address these requirements, the Scintillation Array of Bars for Reaction Experiments (SABRE) consists of five 12” long, 2” diameter bar detectors filled with organic liquid scintillator and capped at both ends with individually read-out superbialkali photomultiplier tubes (PMTs). In-house purification of the scintillator mixtures resulted in improved light collection. Discussion of the liquid scintillator development and the design and commissioning of SABRE will be presented.
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