Identification of photons in double beta-decay experiments using segmented germanium detectors - studies with a GERDA Phase II prototype detector

Abstract

The sensitivity of experiments searching for neutrinoless double beta-decay of germanium was so far limited by the background induced by external gamma-radiation. Segmented germanium detectors can be used to identify photons and thus reduce this background component. The GERmanium Detector Array, GERDA, will use highly segmented germanium detectors in its second phase. The identification of photonic events is investigated using a prototype detector. The results are compared with Monte Carlo data.

20 pages, 7 figures, to be submitted to NIM-A

References in corpus (6)

• Evidence for Neutrinoless Double Beta Decay
• Constraints from Neutrino Oscillation Experiments on the Effective Majorana Mass in Neutrinoless Double $\beta$-Decay
• Pulse shape analysis in segmented detectors as a technique for background reduction in Ge double-beta decay experiments
• Characterization of the first true coaxial 18-fold segmented n-type prototype detector for the GERDA project
• Pulse Shape Discrimination in the IGEX Experiment
• Ambiguity of gamma-ray tracking of "two-interaction" events

Cited by in corpus (15)

• \textsc{MaGe} - a {\sc Geant4}-based Monte Carlo Application Framework for Low-background Germanium Experiments
• Pulse shape discrimination studies with a Broad-Energy Germanium detector for signal identification and background suppression in the GERDA double beta decay experiment
• Characterization of the first true coaxial 18-fold segmented n-type prototype detector for the GERDA project
• Ge Detectors and $0\nu \beta \beta$: The Search for Double Beta Decay with Germanium Detectors: Past, Present and Future
• Pulse shapes from electron and photon induced events in segmented high-purity germanium detectors
• Background reduction and sensitivity for germanium double beta decay experiments
• Pulse shape simulation for segmented true-coaxial HPGe detectors
• Neutron Interactions as Seen by A Segmented Germanium Detector
• MaGe - a Geant4-based Monte Carlo framework for low-background experiments
• HPGe detector field calculation methods demonstrated with an educational program, GeFiCa
• Double Beta Decay Experiments at Canfranc Underground Laboratory
• Pulse Shape Analysis with a Broad-Energy Germanium Detector for the GERDA experiment
• A Segmented, Enriched N-type Germanium Detector for Neutrinoless Double Beta-Decay Experiments
• Feasibility study of the observation of the neutrino accompanied double beta-decay of Ge-76 to the 0+(1) excited state of Se-76 using segmented germanium detectors
• Axes determination for segmented true-coaxial HPGe detectors