【摘要】 通过分析阿尔法磁谱仪(AMS)的低温地面支持系统(CGSE)中的液氦纯度要求,对传统的纯化技术如深冷分馏、吸附、膜分离等进行了分析比较,指出了各种纯化技术存在的问题以及不能满足CGSE要求之处。提出了利用过滤原理进行液氦纯化的新技术。认为金属丝网过滤器具有较好的应用前景。更多还原

【Abstract】 Requirements of helium purity applied in AMS cryogenic ground supporting equipment(CGSE) are analyzed.According to the helium purification characteristics,three traditional technologies,cryogenic fractionation,adsorption and membrane separation are compared.Some disadvantages that cannot satisfy the requirements of CGTSE are put forward.Then the performance of metallic wiremesh filter is analyzed and is thought to be an applicable method.更多还原