QUEST-DMC：超流氦-3测辐射热计的背景建模及由此产生的热沉积
QUEST-DMC: Background Modelling and Resulting Heat Deposit for a Superfluid Helium-3 Bolometer
AI总结：
针对QUEST-DMC超流3He暗物质探测器，研究测定候选低温材料的放射性并计算热泄漏，结合筛选与蒙特卡罗模拟建模背景，为低发热量子器件和地下实验选材提供依据。
摘要：
我们报告了针对一系列常见低温材料的放射性测定和热泄漏计算结果，这些材料被考虑用于QUEST-DMC超流3He暗物质探测器。该测辐射热计配备纳米机械谐振器，将对暗物质相互作用产生的能量沉积敏感。放射性衰变和宇宙射线引发的事件构成显著背景，必须结合材料筛选与蒙特卡罗模拟进行精确建模。不过，本文给出的结果对于那些对微小热泄漏和虚假事件敏感的实验及量子器件具有更广泛的意义，因此我们给出了所研究每种材料的单位质量或单位表面积热泄漏。这可为其他实验的材料选择提供参考，尤其是在考虑地下运行时：即使在较浅深度，放射性成因背景也将占据主导。
英文摘要：
We report the results of radioactivity assays and heat leak calculations for a range of common cryogenic materials, considered for use in the QUEST-DMC superfluid 3He dark matter detector. The bolometer, instrumented with nanomechanical resonators, will be sensitive to energy deposits from dark matter interactions. Events from radioactive decays and cosmic rays constitute a significant background and must be precisely modelled, using a combination of material screening and Monte Carlo simulations. However, the results presented here are of wider interest for experiments and quantum devices sensitive to minute heat leaks and spurious events, thus we present heat leak per unit mass or surface area for every material studied. This can inform material choices for other experiments, especially if underground operation is considered where the radiogenic backgrounds will dominate even at shallow depths.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
