The cryogenics and xenon handling system for the PandaX-4T experiment

被引：10

作者：

Zhao, L. ^{[1
,2
]}

Cui, X. ^{[2
,3
]}

Ma, W. ^{[1
]}

Fan, Y. ^{[4
]}

Giboni, K. ^{[1
]}

Zhang, T. ^{[1
,2
]}

Liu, J. ^{[1
,2
,3
]}

Ji, X. ^{[1
,2
,3
]}

机构：

[1] Shanghai Jiao Tong Univ, Sch Phys & Astron, INPAC,Key Lab Particle Astrophys & Cosmol MOE, Shanghai Key Lab Particle Phys & Cosmol, Shanghai 200240, Peoples R China

[2] Shanghai Jiao Tong Univ, Sichuan Res Inst, Chengdu 610213, Peoples R China

[3] Shanghai Jiao Tong Univ, Tsung Dao Lee Inst, Shanghai 200240, Peoples R China

[4] Nankai Univ, Sch Phys, Tianjin 300071, Peoples R China

来源：

JOURNAL OF INSTRUMENTATION | 2021年 / 16卷 / 06期

基金：

美国国家科学基金会;

关键词：

Cryogenics; Detector cooling and thermo-stabilization; Gas systems and purification;

D O I：

10.1088/1748-0221/16/06/T06007

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

PandaX-4T, the new generation of the PandaX detector, is a xenon dual-phase detector with about six tons of liquid xenon as target for dark matter search. A cryogenics and xenon handling system is designed to liquify and purify this large detector. In this paper, the results on the commission of the cryogenics and gas handling system are reported. The maximum cooling power of similar to 580 W at 178 K with three cooperating coldheads has been achieved. The filling rate with an assisted liquid nitrogen cooling can reach similar to 700 kg/day. The average rate of recuperation by liquid nitrogen is around 440 kg/day. The maximum total purification speed of two circulation loops is up to similar to 155 slpm. Each loop is using a large heat exchanger with a measured heat exchange efficiency of similar to 97.5 +/- 0.5%.

引用

页数：15

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