Characterization of High Purity Germanium Point Contact Detectors with Low Net Impurity Concentration

S. Mertens; A. Hegai; D. C. Radford; N. Abgrall; Y. -D. Chan; R. D. Martin; A. W. P. Poon; C. Schmitt

doi:10.1016/j.nima.2018.09.012

Characterization of High Purity Germanium Point Contact Detectors with Low Net Impurity Concentration

Instrumentation and Detectors 2019-02-20 v2

Authors: S. Mertens , A. Hegai , D. C. Radford , N. Abgrall , Y. -D. Chan , R. D. Martin , A. W. P. Poon , C. Schmitt

View on arXiv ↗ PDF ↗ DOI ↗

Abstract

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.

Keywords

high purity germanium detector point contact detector pulse-shape discrimination net impurity concentration neutrinoless double beta decay background reduction

Cite

@article{arxiv.1803.06999,
  title  = {Characterization of High Purity Germanium Point Contact Detectors with Low Net Impurity Concentration},
  author = {S. Mertens and A. Hegai and D. C. Radford and N. Abgrall and Y. -D. Chan and R. D. Martin and A. W. P. Poon and C. Schmitt},
  journal= {arXiv preprint arXiv:1803.06999},
  year   = {2019}
}

Characterization of High Purity Germanium Point Contact Detectors with Low Net Impurity Concentration

Abstract

Keywords

Cite

Related papers