The cryogenic system for the Panda-X dark matter search experiment

被引：18

作者：

Gong, H. ^{[1
,2
]}

Giboni, K. L. ^{[1
,2
]}

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

Tan, A. ^{[1
,2
,3
]}

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

机构：

[1] Shanghai Jiao Tong Univ, Dept Phys, INPAC, Shanghai 200240, Peoples R China

[2] Shanghai Jiao Tong Univ, Shanghai Key Lab Particle Phys & Cosmol, Shanghai 200240, Peoples R China

[3] Univ Maryland, Dept Phys, College Pk, MD 20742 USA

来源：

JOURNAL OF INSTRUMENTATION | 2013年 / 8卷

关键词：

Particle identification methods; Large detector systems for particle and astroparticle physics;

D O I：

10.1088/1748-0221/8/01/P01002

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Panda-X is a liquid xenon dual-phase detector for the Dark Matter Search. The first modestly-sized module will soon be installed in the China JinPing Deep Underground Laboratory in Sichuan province, P.R. China. The cryogenic system is designed to handle much larger detectors, even the final version in the ton scale. Special attention has been paid to the reliability, serviceability, and adaptability to the requirements of a growing experiment. The system is cooled by a single Iwatani PC150 Pulse Tube Refrigerator. After subtracting all thermal losses, the remaining cooling power is still 82 W. The fill speed was 0.75 g/s, but could be boosted by LN2 assisted cooling to 3.3 g/s. For the continuous recirculation and purification through a hot getter, a heat exchanger was employed to reduce the required cooling power. The recirculation speed is limited to 2.9 g/s by the gas pump. At this speed, recirculation only adds 18.5 W to the heat load of the system, corresponding to a 95.2% efficiency of the heat exchanger.

引用

页数：12

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