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DTSTART;TZID=America/Los_Angeles:20200224T110000
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DTSTAMP:20260429T210422
CREATED:20200219T181744Z
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UID:747-1582542000-1582545600@inpa.lbl.gov
SUMMARY:Special INPA Seminar – Gulden Othman (University of North Carolina)
DESCRIPTION:Speaker: Gulden Othman (University of North Carolina) \nTitle: CAGE Scanner: Investigating Surface Backgrounds in HPGe Detectors for Neutrinoless Double-Beta Decay Searches \nAbstract: A potential source of problematic backgrounds in a ton-scale 76Ge-based neutrinoless double-beta decay (0nuBB) program may arise from particle interactions occurring near the surfaces of high purity germanium (HPGe) detectors. The Collimated Alphas\, Gammas\, and Electrons scanner (CAGE) is a test stand that allows for in-depth studies of surface events by using vacuum-side\, collimated radiation sources to characterize the response of HPGe detectors to radiation at specific locations on the detector surface. LEGEND is a search for 0nuBB in the 76Ge isotope that will begin operation of a 200 kg array in 2021\, with a plan to scale up to 1000 kg of 76Ge-enriched HPGe detectors in a phased approach. In order to reach LEGEND-1000’s goal of a half-life sensitivity >10^28 years\, understanding and discriminating against backgrounds from surface events is essential. I will motivate the design and current status of CAGE in the context of LEGEND as we begin characterizing the response of two detector geometries that will be used in LEGEND to surface alpha interactions.  
URL:https://inpa.lbl.gov/event/special-inpa-seminar-gulden-othman-university-of-north-carolina/
LOCATION:50A-5132- Sessler\, 50A-5132 Sessler Conference Room\, CA
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