大容量零损耗液氙储罐系统的设计与研制

Design and development of a large volume zero boil-off liquid xenon storage system

对于基于液氙的暗物质探测,在探测开启之前、暂停或者出现故障时需要回收储存2.5吨左右的液氙,为此研制了一套大容量零损耗的液氙储罐系统。文中介绍了该储罐系统的结构组成,计算了液氙杜瓦的漏热损失,并在此漏热分析的基础上选定了一款脉冲管制冷机提供冷量,以实现液氙的零损耗稳定储存。

For the dark matter detector with liquid xenon （ LXe）, about 2.5 tons of LXe need to be recovered and stored before the start of experiment, or during the detector maintenance in the period of shutdown, etc. To meet the requirements, a cryogenic LXe storage system was built. The structure of the system was introduced and the heat losses were calculated in the paper. One type of pulse tube refrigerator was selected on base of the heat losses to ensure that the LXe was stored with zero boil - off.