AMS02超导磁体的低温地面支持设备系统(CGSE)方案研究

AMS02是用于探测空间反物质、暗物质及宇宙射线的第二代阿尔法磁谱探测仪,它将利用航天飞机发射至国际空间站上,并以超导状态工作3年以上。AMS02的核心是一个大型超导磁体,重达2000kg,需要在发射前用一低温地面支持设备系统(CGSE)对磁体进行冷却并在磁体杜瓦中加注2.5m3的超流氦。该文介绍此CGSE的技术要求、总体方案、冷却过程和主要子系统。

Development of the cryogenic ground support equipment (CGSE) for the superconducting magnet in the Alpha Magnetic Spectrometer (AMS -02)

AMS-02 is a particle detector based on the International Space Station(ISS).Its mission is to search for antimatter,dark matter and rays in the space.At the heart of the detector is a large,powerful superconducting magnet,which will work in the superconducting state for more than 3 years on ISS.The CGSE is required to cool down the 2000 kg magnet to its operating temperature of 1.8 K,and to fill up the magnet helium vessel with 2.5m~3 of superfluid helium on the ground before the detector being launched.In this paper,the technical requirement,the scheme,the cooling procedure and the main sub systems of the CGSE are introduced.