Development of an anti-Compton veto for HPGe detectors operated in liquid argon using Silicon Photo-Multipliers
| Autor: | Allen Caldwell, X. Liu, J. Janicsko Csathy, H. Aghaei Khozani, Bela Majorovits |
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| Jazyk: | angličtina |
| Rok vydání: | 2010 |
| Předmět: |
Physics
Nuclear and High Energy Physics Scintillation Photon Physics - Instrumentation and Detectors Silicon business.industry Physics::Instrumentation and Detectors Veto Detector chemistry.chemical_element FOS: Physical sciences Germanium Instrumentation and Detectors (physics.ins-det) Wavelength Optics chemistry Liquid argon High Energy Physics::Experiment business Instrumentation |
| Popis: | A proof of concept detector is presented for scintillation light detection in liquid argon using Silicon Photo-Multipliers. The aim of the work is to build an anti-Compton veto for germanium detectors operated directly in liquid argon like in the GERDA experiment. Properties of the Multi-Pixel Photon Counter (MPPC) are studied at cryogenic temperatures. To increase the light collection efficiency of the MPPCs wavelength shifting fibers were used. A veto efficiency comparable to a similar setup with a Photo-Multiplier Tube was achieved. 18 pages, 13 figures |
| Databáze: | OpenAIRE |
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