Performance of bare high-purity germanium detectors in liquid argon for the GERDA experiment

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dc.creatorHeider, Marik Barnabé
dc.creatorCattadori, Carla
dc.creatorChkvorets, Oleg
dc.creatorDi Vacri, Assunta
dc.creatorGusev, Konstantin
dc.creatorSchönert, Stefan
dc.creatorShirchenko, Mark
dc.date2008-12-10
dc.date.accessioned2026-07-07T12:11:53Z
dc.date.available2026-07-07T12:11:53Z
dc.descriptionThe GERmanium Detector Array, GERDA, will search for neutrinoless double beta decay in 76Ge at the National Gran Sasso Laboratory of the INFN. Bare high-purity germanium detectors enriched in 76Ge will be submerged in liquid argon serving simultaneously as a shield against external radioactivity and as a cooling medium. In GERDA Phase-I, reprocessed enriched-Ge detectors, which were previously operated by the Heidelberg-Moscow and IGEX collaborations, will be redeployed. Before operating the enriched detectors, tests are performed with non-enriched bare HPGe detectors in the GERDA underground Detector Laboratory to test the Phase-I detector assembly, the detector handling protocols, the refurbishment technology and to study the long-term stability in liquid argon. The leakage currents in liquid argon and liquid nitrogen have been extensively studied under varying gamma irradiation conditions. In total three non-enriched high-purity p-type prototype germanium detectors have been operated successfully. The detector performance is stable over the long-term measurements. For the first time, performance of bare high-purity germanium detectors in liquid argon is reported.
dc.descriptionPresented at IEEE Conference 2008 Nuclear Science Symposium, 19 - 25 October 2008, Dresden, Germany. 4 pages, 6 figures
dc.identifierhttps://arxiv.org/abs/0812.1907
dc.identifierhttp://arxiv.org/abs/0812.1907
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/210368
dc.subjectInstrumentation and Detectors
dc.subjectHigh Energy Physics - Experiment
dc.titlePerformance of bare high-purity germanium detectors in liquid argon for the GERDA experiment
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