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PandaX-4T暗物质探测器超高纯氙气回收系统

Aug 11, 2022, 2:36 PM
2m

Speaker

Dr Zhou Wang (Shanghai Jiao Tong University)

Description

为了PandaX-4T暗物质探测器在紧急情况或者停止运行时,在保证探测器中的低温低压环境且不污染超高纯氙的前提下,高流量地将探测器中的氙回收到高压气瓶中,设计研制了超高纯氙气回收系统。该回收系统主要包含加热系统、工作管路、回流管路、辅助回收管路和自动控制系统。该系统可以保证在PandaX-4T暗物质探测器内2~3个大气压和178~186.5K的情况下,通过加热系统汽化探测器中的液氙,并采用隔膜式压缩机将探测器内的氙气无泄漏地以200SLPM的速率压缩至6MPa,充入128瓶40L的标准气瓶中。期间保证氙气的纯度,使其不受污染。这对温度压力环境要求严苛、低本底的大型暗物质探测器的运行至关重要。

Primary authors

Dr Li Zhao (Shanghai Jiao Tong University) Dr Tao Zhang (Shanghai Jiao Tong University) Dr Wenbo Ma (Shanghai Jiao Tong University) Dr Zhou Wang (Shanghai Jiao Tong University)

Presentation materials