论文标题
与纯净和二元气体混合物一起用于气态暗物质探测器的纯化效率和ra散发
Purification Efficiency and Radon Emanation of Gas Purifiers used with Pure and Binary Gas Mixtures for Gaseous Dark Matter Detectors
论文作者
论文摘要
罕见的事件搜索需要所有检测器组件中极端的放射线疗法。这包括活性介质，在气态探测器的情况下是操作气体。使用的气体通常包括与分子淬火器的贵重气体混合物。需要这些气体的纯化才能达到所需的检测器性能，但是，已知净化器将散发222 RN，这是背景的潜在来源。研究了几个净化器的O 2和H 2 O纯化效率和RN发射率，旨在识别最低的RN选项。此外，在循环闭环气体系统中使用净化器的淬火器吸收。
Rare event searches require extreme radiopurity in all detector components. This includes the active medium, which in the case of gaseous detectors, is the operating gas. The gases used typically include noble gas mixtures with molecular quenchers. Purification of these gases is required to achieve the desired detector performance, however, purifiers are known to emanate 222 Rn, which is a potential source of background. Several purifiers are studied for their O 2 and H 2 O purification efficiency and Rn emanation rates, aiming to identify the lowest-Rn options. Furthermore, the absorption of quenchers by the purifiers is assessed when used in a recirculating closed-loop gas system.
