Preliminary test results of LAr prototype detector

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Pei-Xian Li, Meng-Yun Guan, Chang-Gen Yang, Peng Zhang, Jin-Chang Liu, Yong-Peng Zhang, Cong Guo and Yi Wang. Preliminary test results of LAr prototype detector[J]. Chinese Physics C, 2016, 40(11): 116005. doi: 10.1088/1674-1137/40/11/116005
Pei-Xian Li, Meng-Yun Guan, Chang-Gen Yang, Peng Zhang, Jin-Chang Liu, Yong-Peng Zhang, Cong Guo and Yi Wang. Preliminary test results of LAr prototype detector[J]. Chinese Physics C, 2016, 40(11): 116005.  doi: 10.1088/1674-1137/40/11/116005 shu
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Received: 2016-02-05
Revised: 2016-05-10
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    Supported by China Ministry of Science and Technology (2010CB833003), National Nature Science Foundation of China, Youth Science Found (11305188)

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Preliminary test results of LAr prototype detector

    Corresponding author: Pei-Xian Li,
  • 1. Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
  • 2. University of Chinese Academy of Sciences, Beijing 100049, China
  • 3.  Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
Fund Project:  Supported by China Ministry of Science and Technology (2010CB833003), National Nature Science Foundation of China, Youth Science Found (11305188)

Abstract: Liquid argon (LAr) is an attractive target for the direct detection of WIMPs. A LAr prototype detector was designed to study the technology and properties of LAr detectors. The prototype detector had an active volume containing 0.65 kg of liquid argon. A liquid nitrogen (LN) cooling system allowed the temperature fluctuation of the liquid argon to be controlled within less than 0.1 K during a one month run. In the 22Na calibration run, the LAr prototype obtained 1.59±0.02 p.e./keV light yield for 511 keV gamma rays using a domestic-made argon purification system.

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