论文标题
在低温液体中用无定形锗接触的高纯度锗探测器的表征
Characterization of High-Purity Germanium Detectors with Amorphous Germanium Contacts in Cryogenic Liquids
论文作者
论文摘要
在慕尼黑的Max-Planck-Institut Fuer物理学的低温恒温器中，首次在液态氮和液体氩中成功操作，首次在液氮和液体氩中成功操作了平面高纯度锗探测器。这些探测器是在伯克利国家实验室和南达科他大学的劳伦斯伯克利大学制造的，使用了南达科他大学种植的水晶。它们在两种低温液体中的长距离运输和多个热循环中幸存下来，并显示出合理的泄漏电流和光谱性能。还讨论的是在大规模锗实验中使用薄薄的无定形半导体材料作为替代接触技术的利弊，该实验在标准模型之外搜索物理学。
For the first time, planar high-purity germanium detectors with thin amorphous germanium contacts were successfully operated directly in liquid nitrogen and liquid argon in a cryostat at the Max-Planck-Institut fuer Physics in Munich. The detectors were fabricated at the Lawrence Berkeley National Laboratory and the University of South Dakota, using crystals grown at the University of South Dakota. They survived long-distance transportation and multiple thermal cycles in both cryogenic liquids and showed reasonable leakage currents and spectroscopic performance. Also discussed are the pros and cons of using thin amorphous semiconductor materials as an alternative contact technology in large-scale germanium experiments searching for physics beyond the Standard Model.
