Chinese Physics C > 2016, Vol. 40 > Issue(11): 116005 DOI: 10.1088/1674-1137/40/11/116005

Preliminary test results of LAr prototype detector

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

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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.
- LAr technology,
- LAr purification,
- light yield,
- dark matter

References

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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

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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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通讯作者:陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

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

Received Date:2016-02-05
Accepted Date:2016-05-10
Available Online:2016-11-05

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 the²²Na 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.