Speaker
Description
A potential source of backgrounds in a ton-scale $^{76}$Ge-based neutrinoless double-beta decay program could 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 neutrinoless double-beta decay in the $^{76}$Ge isotope that will begin operation of a 200 kg array in 2021, with a plan to scale up to 1000 kg of $^{76}$Ge-enriched HPGe detectors in a phased approach. To maximize LEGEND-1000's discovery sensitivity, understanding and discriminating against backgrounds from surface events is essential. In this work we present the design, operation, and current results from CAGE.
Mini-abstract
Novel test-stand aids in understanding of potential surface backgrounds in HPGe detectors for LEGEND
| Experiment/Collaboration | LEGEND |
|---|