材料筛选用高灵敏度GERDA伽马能谱仪：I部分
Highly sensitive gamma-spectrometers of GERDA for material screening: Part I
摘要：
GERDA实验的目的是寻找76 Ge的无中微子双β衰变，以及其他可能的稀有过程。第一阶段的灵敏度被设想为比以前的无中微子双β衰变实验好一个数量级以上。这意味着需要使用超低放射性污染的材料来建造探测器及其屏蔽。因此，对材料筛选的要求包括高灵敏度低背景检测技术和长测量时间。在这篇文章中，材料筛选实验室提供给GERDA合作的概述，重点是伽马能谱。此外，在这些实验室的评价精度的相互比较的结果。
英文摘要：
The GERDA experiment aims to search for the neutrinoless double beta-decay of 76Ge and possibly for other rare processes. The sensitivity of the first phase is envisioned to be more than one order of magnitude better than in previous neutrinoless double beta-decay experiments. This implies that materials with ultra-low radioactive contamination need to be used for the construction of the detector and its shielding. Therefore the requirements on material screening include high-sensitivity low-background detection techniques and long measurement times. In this article, an overview of material-screening laboratories available to the GERDA collaboration is given, with emphasis on the gamma-spectrometry. Additionally, results of an intercomparison of the evaluation accuracy in these laboratories are presented.
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。
