Boulby地下实验室的超低本底锗测量
Ultra-Low Background Germanium Assay at the Boulby Underground Laboratory
AI总结：
本文介绍Boulby地下实验室2017-2021年安装的Mirion超低本底锗探测器，其结合低本底屏蔽与降氡氮气系统，实现接近世界最佳的灵敏度，100天测量可达10 μBq/kg，用于无中微子双β衰变材料筛选。
摘要：
随着我们进入下一代低本底粒子物理实验开始设计和建造的时代，利用多种技术以高灵敏度和高速度对材料进行测量的能力将成为关键。本文描述了2017年至2021年间在Boulby地下实验室安装并调试的Mirion Technologies（Canberra）专用超低本底探测器。探测器的低本底水平与低本底屏蔽以及降氡的干燥氮气吹扫系统相结合，使得灵敏度接近世界最佳水平，而无需复杂的屏蔽解决方案。对于优化的样品几何形状，运行100天，可以达到接近10 μBq/kg（10⁻¹² g/g）的灵敏度，用于无中微子双β衰变中感兴趣的本底同位素。
英文摘要：
As we move to an era where next generation low-background particle physics experiments begin to be designed and constructed, the ability to assay materials with high sensitivity and at speed with a variety of techniques will be key. This paper describes the Mirion Technologies (Canberra) specialty ultra-low background detectors installed and commissioned at the Boulby Underground Laboratory between 2017 and 2021. The low background levels of the detectors combine with low background shielding and a radon-reduced dry nitrogen purge system to give sensitivity approaching the best in the world without the need for intricate shielding solutions. For an optimised sample geometry, run for 100 days, it would be possible to reach close to 10 $μ$Bq/kg ($10^{-12}$ g/g) for background isotopes of interest in neutrinoless double-beta decay.
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。
