论文标题
DART，用于测量39AR耗竭因子的检测器
DArT, a detector for measuring the 39Ar depletion factor
论文作者
论文摘要
通过银河wimp的弹性散射直接检测暗物质的最强大技术之一是使用液体氩时间投影室。大气氩（AAR）具有宇宙起源的天然存在的放射性同位素\ ar {}。从地下井中提取的氩气（被\ ar {}）的使用是这些实验物理潜力的关键。 Darkside-20k（DS-20K）暗物质搜索实验将以50吨无线电地下氩气（UAR）的形式运行，从Cortez（美国）的Urania植物中提取，并在Aria蒸馏厂（意大利萨迪尼亚）中纯化。根据\ ar {}评估UAR的无线电脉络性对于DS-20K的成功以及全球氩暗物质协作（GADMC）的未来实验至关重要，并且将对名为\ dia {}的实验进行。 DART是一个将包含正在测试的氩气的小室。检测器将浸入位于西班牙Canfranc地下实验室（LSC）的ARDM检测器的较大活性体积中，该探测器将充当来自检测器材料和周围岩石放射性光子的背景事件的主动否决权。
One of the most powerful techniques for direct detection of dark matter via elastic scattering of galactic WIMPs is the use of liquid argon time projection chambers. Atmospheric argon (AAr) has a naturally occurring radioactive isotope, \ar{}, of cosmogenic origin. The use of argon extracted from underground wells, deprived of \ar{}, is key to the physics potential of these experiments. The DarkSide-20k (DS-20k) dark matter search experiment will operate with 50 tonnes of radio-pure underground argon (UAr), extracted from the Urania plant in Cortez (USA) and purified in the Aria distillation plant (Sardinia, Italy). Assessing the radio-purity of UAr in terms of \ar{} is crucial for the success of DS-20k, as well as for future experiments of the Global Argon Dark Matter Collaboration (GADMC), and will be done with the experiment named \dia{}. DArT is a small chamber that will contain the argon under test. The detector will be immersed in the LAr active volume of the ArDM detector, located at the Canfranc Underground Laboratory (LSC) in Spain, which will act as active veto for background events coming from photons from detector materials and surrounding rock radioactivity.
