Performance of BDX-MINI veto systems
Performance of BDX-MINI veto systems
复制标题
BDX-MINI 否决系统的性能
DOI：
10.1016/j.nima.2022.167949
复制
发表时间：
2023
期刊：
影响因子：
--
通讯作者：
Smith, E.S.
中科院分区：
文献类型：
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作者：
Spreafico, M.;Battaglieri, M.;Bondí, M.;Celentano, A.;Cole, P.L.;De Napoli, M.;De Vita, R.;Marsicano, L.;Randazzo, N.;Smith, E.S.
本文介绍了安装在美国杰斐逊实验室的BDX-MINI探测器的否决系统。BDX-MINI实验是第一个专门设计用于寻找MeV-GeV质量范围内的轻暗物质(LDM)粒子的电子束倾倒实验。BDX-mini探测器的核心是一个总体积为4dm3的钨酸铅电磁量热计。量热仪周围环绕着一个旨在拒绝宇宙背景的多层否决权：否决权的最内层由被动钨屏蔽组成，用于低能辐射，而塑料闪烁体使中层和外层用于拒绝带电的宇宙粒子。位于束流转储和探测器之间的污垢位于下游约20米处，提供了足够的屏蔽，使其不受束流背景的影响。在2019年至2020年期间，BDX-mini被暴露在由2.176 GeV电子束入射到杰斐逊实验室实验厅A的束流转储上产生的弱相互作用粒子(中微子和DM)中约6个月。
This paper describes the veto system of the BDX-MINI detector installed at Jefferson Lab (US). The BDX-MINI experiment is the first electron beam-dump experiment specifically designed to search for Light Dark Matter (LDM) particles in the MeV-GeV mass range. The core of the BDX-MINI detector is a lead-tungstate electromagnetic calorimeter, for a total volume of 4 dm 3. The calorimeter is surrounded by a multi-layer veto aimed at rejecting cosmic background: the innermost layer of the veto is made by a passive tungsten shielding for low energy radiation, while plastic scintillators make the middle and outer layers for charged cosmic particles rejection. Being located about 20 m downstream, the dirt between the beam dump and the detector provides sufficient shielding from the beam-related background. In 2019–2020, BDX-MINI was exposed for about six months to weakly interacting particles (neutrinos and, if existing, DM) produced by a 2.176 GeV electron beam incident on the beam dump of experimental Hall-A at Jefferson Lab.
DOI：
10.1140/epjc/s10052-021-08957-5
发表时间：
2020-11
期刊：
The European Physical Journal C
影响因子：
--
作者：
M. Battaglieri;P. Bisio;M. Bond'i;A. Celentano;P. Cole;M. Napoli;R. D. Vita;L. Marsicano;G. Ottonello;F. Parodi;N. Randazzo;E. Smith;D. Snowden-Ifft;M. Spreafico;T. Whitlatch;M. Wood
通讯作者：
M. Battaglieri;P. Bisio;M. Bond'i;A. Celentano;P. Cole;M. Napoli;R. D. Vita;L. Marsicano;G. Ottonello;F. Parodi;N. Randazzo;E. Smith;D. Snowden-Ifft;M. Spreafico;T. Whitlatch;M. Wood