Title: Pulse shape discrimination performance of inverted coaxial Ge detectors
Authors: DOMULA A.R.HULT MIKAELKERMAÏDIC Y.MARISSENS GERDSCHWINGENHEUER B.WESTER T.ZUBER K.
Citation: NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT vol. 891 p. 106 - 110
Publisher: ELSEVIER SCIENCE BV
Publication Year: 2018
JRC N°: JRC107307
ISSN: 0168-9002 (online)
URI: http://publications.jrc.ec.europa.eu/repository/handle/JRC107307
DOI: 10.1016/j.nima.2018.02.056
Type: Articles in periodicals and books
Abstract: We report on the characterization of two inverted coaxial Ge detectors in the context of being employed in future 76Ge neutrinoless double beta (0) decay experiments. It is an advantage that such detectors can be produced with bigger Ge mass as compared to the planar Broad Energy Ge (BEGe) or p-type Point Contact (PPC) detectors that are currently used in the Gerda and Majorana Demonstrator 0 decay experiments respectively. This will result in a lower background for the search of 0 decay due to a reduction of detector surface to volume ratio, cables, electronics and holders which are dominating nearby radioactive sources. The measured resolution near the 76Ge Q-value at 2039 keV is 2.3 keV FWHM and their pulse-shape discrimination of background events are similar to BEGe and PPC detectors. It is concluded that this type of Ge-detector is suitable for usage in 76Ge 0 decay experiments.
JRC Directorate:Nuclear Safety and Security

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