Pulse shape discrimination performance of Inverted Coaxial Ge detectors

Abstract

We report on the characterization of two inverted coaxial Ge detectors in the context of being employed in future ${}^{76}$Ge neutrinoless double beta ($0\nu \beta \beta$) decay experiments. It is an advantage that such detectors can be produced with bigger Ge mass as compared to the planar Broad Energy Ge detectors (BEGe) that are currently used in the GERDA $0\nu \beta \beta$ decay experiment. This will result in lower background for the search of $0\nu \beta \beta$ decay due to a reduction of cables, electronics and holders. The measured resolution near the ${}^{76}$Ge Q-value at 2039 keV is 2.5 keV and their pulse-shape characteristics are similar to BEGe-detectors. It is concluded that this type of Ge-detector is suitable for usage in ${}^{76}$Ge $0\nu \beta \beta$ decay experiments.

References in corpus (3)

• Background free search for neutrinoless double beta decay with GERDA Phase II
• Production, characterization and operation of ${}^{76}$Ge enriched BEGe detectors in GERDA
• Background model for the MAJORANA DEMONSTRATOR

Cited by in corpus (8)

• Final Results of GERDA on the Search for Neutrinoless Double-$\beta$ Decay
• Characterization of 30 ${}^{76}$Ge enriched Broad Energy Ge detectors for GERDA Phase II
• $\alpha$-event Characterization and Rejection in Point-Contact HPGe Detectors
• Characterization of inverted coaxial ${}^{76}$Ge detectors in GERDA for future double-$\beta$ decay experiments
• Neutrinoless Double Beta Decay with Germanium Detectors: 10${}^{26}$ yr and Beyond
• Charge-carrier collective motion in germanium detectors for ββ-decay searches
• Virtual segmentation of a small contact HPGe detector: inference of hit positions of single-site events via pulse shape analysis
• Calibration of the GERDA experiment