Design of Readout Electronics System for Prototype LAr-based Direct Dark Matter Detector

被引:0
|
作者
Zhu X. [1 ,2 ]
Shen Z. [1 ,2 ]
Zhao K. [1 ,2 ]
Xiong W. [3 ]
Yu H. [1 ,2 ]
Feng C. [1 ,2 ]
Liu S. [1 ,2 ]
An Q. [1 ,2 ]
机构
[1] State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China, Hefei
[2] Department of Modern Physics, University of Science and Technology of China, Hefei
[3] Institute of High Energy Physics, Chinese Academy of Sciences, Beijing
关键词
Dark matter; Data acquisition; LAr; Readout electronics;
D O I
10.7538/yzk.2020.youxian.0062
中图分类号
学科分类号
摘要
The prototype readout electronics system of direct dark matter detection experiments, which is mainly based on high speed and high precision waveform sampling and high speed data transfer techniques, consists of multiple waveform digitization modules (WDMs) and one global trigger module (GTM). The WDM exploits high speed analog-to-digital converter to acquire signals from the photomultiplier tubes (PMTs). The GTM collects hit information from WDMs, generates system trigger signal and fans out synchronous clock to all WDMs via backplane buses. Based on offline pulse shape discrimination method, the nuclear recoil events from a PuC neutron source can be clearly distinguished from gamma events within the energy range of 80 pe (photoelectron) to 240 pe for gamma rays, which indicates the capability of fulfilling the requirements of LAr-based direct dark matter detection experiments in future. © 2020, Editorial Board of Atomic Energy Science and Technology. All right reserved.
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页码:2439 / 2447
页数:8
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