论文标题
JLAB的BDX-MINI检测器用于轻型暗物质搜索
The BDX-MINI detector for Light Dark Matter search at JLab
论文作者
论文摘要
本文描述了紧凑型检测器BDX-MINI的设计和性能，该检测器结合了一个概念的所有特征，该功能优化了电子在梁储层中电子产生的轻暗物质的检测。它代表了预计将在JLAB运行的未来BDX实验的简化版本。 BDX-Mini暴露于杰斐逊实验室A Hall A梁梁的2.176 GEV电子束产生的穿透颗粒。检测器由30.5千克的PBWO4晶体组成，并在梁垃圾场之后具有足够的材料，以消除除中微子以外的所有已知颗粒。晶体使用硅光电培养基读出。完全围绕探测器的是钨和两个主动闪烁体否决系统的被动层，它们也使用硅光电塑料读出。该设计经过验证，并且在六个月内显示出稳定探测器的性能是稳定的，在此期间，检测器的操作以最少的访问操作。
This paper describes the design and performance of a compact detector, BDX-MINI, that incorporates all features of a concept that optimized the detection of light dark matter produced by electrons in a beam dump. It represents a reduced version of the future BDX experiment expected to run at JLAB. BDX-MINI was exposed to penetrating particles produced by a 2.176 GeV electron beam incident on the beam dump of Hall A at Jefferson Lab. The detector consists of 30.5 kg of PbWO4 crystals with sufficient material following the beam dump to eliminate all known particles except neutrinos. The crystals are read out using silicon photomultipliers. Completely surrounding the detector are a passive layer of tungsten and two active scintillator veto systems, which are also read out using silicon photomultipliers. The design was validated and the performance of the robust detector was shown to be stable during a six month period during which the detector was operated with minimal access.
