期刊
出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.nima.2018.09.012
关键词
Rare event search; Neutrinoless double beta decay; Germanium detector
类别
资金
- U.S. Department of Energy, Office of Science, Office of Nuclear Physics
- Alexander von Humboldt Foundation
- Helmholtz Association
High Purity germanium point-contact detectors have low energy thresholds and excellent energy resolution over a wide energy range, and are thus widely used in nuclear and particle physics. In rare event searches, such as neutrinoless double beta decay, the point-contact geometry is of particular importance since it allows for pulse-shape discrimination, and therefore for a significant background reduction. In this paper we investigate the pulse-shape discrimination performance of ultra-high purity germanium point contact detectors. It is demonstrated that a minimal net impurity concentration is required to meet the pulse-shape performance requirements.
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