CUTE：SNOLAB的低温地下测试设施
CUTE: A Cryogenic Underground TEst Facility at SNOLAB
AI总结：
本文介绍了SNOLAB的CUTE低温地下测试设施，它具备毫开级低温、低放射性本底等条件，原用于SuperCDMS探测器测试，现已成为面向多科研项目的用户设施。
摘要：
低温制冷技术为一系列基于超导、超流、低温相变或毫开尔文范围内非金属低热容等特性的有趣技术打开了大门。基于这些技术的设备通常对环境辐射可能造成的微小能量沉积很敏感。SNOLAB的低温地下测试设施（Cryogenic Underground TEst facility，简称CUTE）是一个在低本底环境中测试和运行低温设备的平台。该大型实验腔（量级为$\boldsymbol{\n\b\f\b\f{O}}$(10)升）的基础温度约为12 mK；它可承载最多约20千克的有效载荷，在约100 keV以下的能量范围内，提供的放射性本底事件率低至每千克每千电子伏每天数个事件，同时μ子率可忽略不计（量级为$\n\b\f\b\f{O}$(1)次/月）。CUTE是在超级低温暗物质搜寻实验（Super Cryogenic Dark Matter Search experiment，简称SuperCDMS）的背景下设计和建造的，该实验使用低温探测器来搜寻暗物质粒子与普通物质的相互作用。自2019年调试以来，该设施一直用于测试SuperCDMS探测器。2021年，在完成SuperCDMS探测器的测试后，它被移交给SNOLAB，成为SNOLAB的用户设施。该设施将根据对项目科技价值的评估，为受益于这些特殊条件的项目提供使用机会。本文介绍了CUTE的主要设计特点和运行参数。
英文摘要：
Low-temperature cryogenics open the door for a range of interesting technologies based on features like superconductivity and superfluidity, low-temperature phase transitions or the low heat capacity of non-metals in the milli-Kelvin range. Devices based on these technologies are often sensitive to small energy depositions as can be caused by environmental radiation. The Cryogenic Underground TEst facility (CUTE) at SNOLAB is a platform for testing and operating cryogenic devices in an environment with low levels of background. The large experimental chamber ($\mathcal{O}$(10) L) reaches a base temperature of $\sim$12 mK; it can hold a payload of up to $\sim$20 kg and provides a radiogenic background event rate as low as a few events/kg/keV/day in the energy range below about 100 keV, as well as a negligible muon rate ($\mathcal{O}$(1)/month). CUTE was designed and built in the context of the Super Cryogenic Dark Matter Search experiment (SuperCDMS) which uses cryogenic detectors to search for interactions of dark matter particles with ordinary matter. The facility has been used to test SuperCDMS detectors since its commissioning in 2019. In 2021, it was handed over to SNOLAB to become a SNOLAB user facility after the completion of the testing of detectors for SuperCDMS. The facility will be available for projects that benefit from these special conditions, based on proposals assessed for their scientific and technological merits. This article describes the main design features and operating parameters of CUTE.
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。
