标题： 一种可再生的液体氩纯化过滤器 显示英文标题

标题： A Regenerable Filter for Liquid Argon Purification

摘要： 一种用于从液态氩中去除电负性杂质的过滤系统被描述。 过滤器的活性成分是吸附分子筛和涂有活性铜的氧化铝颗粒。 该系统能够将液态氩纯化至氧等效杂质浓度低于每万亿分之三十，相当于电子漂移寿命至少为10毫秒。 在约250摄氏度发生的还原反应使得过滤材料可以通过一个简单的程序进行原位再生。 在以下工作中，我们描述了过滤器的设计、性能和再生过程。 显示英文摘要

摘要： A filter system for removing electronegative impurities from liquid argon is described. The active components of the filter are adsorbing molecular sieve and activated-copper-coated alumina granules. The system is capable of purifying liquid argon to an oxygen-equivalent impurity concentration of better than 30 parts per trillion, corresponding to an electron drift lifetime of at least 10 ms. Reduction reactions that occur at about 250 degrees Celsius allow the filter material to be regenerated in-situ through a simple procedure. In the following work we describe the filter design, performance, and regeneration process.