Author:
Wang Zhou,Ma Wenbo,Zhang Tao,Zhao Li,Li Shuaijie,Cui Xiangyi,Liu Jianglai,Fu Changbo,Ju Yonglin,Lin Qing,Chen Xiaohua,Wang Xiuli
Abstract
Abstract
In order to recuperate the ultra-high purity xenon from
PandaX-4T dark matter detector to high-pressure gas cylinders in
emergency or at the end-of-run situation, a high speed ultra-high
purity xenon recuperation system is designed and developed. This
system includes a diaphragm pump, the heat management system, the
main recuperation pipeline, the reflux pipeline, the auxiliary
recuperation pipeline and the automatic control system. The liquid
xenon in the detector is vaporized by the heat management system,
and the gaseous xenon is compressed to 6 MPa at the flow rate of
200 standard litres per minute (SLPM) using the diaphragm
compressor. The high-pressure xenon is filled into 128 gas cylinders
via the main recuperation pipeline. During the recuperation, the low
pressure and temperature conditions of 2 ∼ 3 atmospheres and
178 ∼ 186.5 K in PandaX-4T dark matter detector are kept by
the cooperation of the main recuperation pipeline, reflux pipeline
and the auxiliary recuperation pipeline to guarantee the safety, and
the purity of the recuperated xenon gas is measured to ensure no
contamination happened. The development of the high speed ultra-high
purity xenon recuperation system is important for the operation of
large-scale dark matter detectors with the requirements of strict
temperature and pressure environment and low background.
Subject
Mathematical Physics,Instrumentation
Cited by
2 articles.
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