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Title: Phonon Quasidiffusion in Cryogenic Dark Matter Search Large Germanium Detectors

Phonon Quasidiffusion in Cryogenic Dark Matter Search Large Germanium Detectors We present results on quasidiffusion studies in large, 3 inch diameter, 1 inch thick [100] high purity germanium crystals, cooled to 50 mK in the vacuum of a dilution refrigerator, and exposed with 59.5 keV gamma-rays from an Am-241 calibration source. We compare data obtained in two different detector types, with different phonon sensor area coverage, with results from a Monte Carlo. The Monte Carlo includes phonon quasidiffusion and the generation of phonons created by charge carriers as they are drifted across the detector by ionization readout channels.
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Publication Date:
OSTI Identifier:1042686
Report Number(s):SLAC-PUB-15012
Journal ID: ISSN 0577-9073; CJOPAW; arXiv:1107.3575; TRN: US1202810
DOE Contract Number:AC02-76SF00515
Resource Type:Journal Article
Resource Relation:Journal Name: Chinese Journal of Physics; Journal Volume: 49; Journal Issue: 1
Research Org:SLAC National Accelerator Laboratory (SLAC)
Sponsoring Org:DOE
Country of Publication:United States
Language:English
Subject: 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; CALIBRATION; CHARGE CARRIERS; CRYOGENICS; DILUTION; GE SEMICONDUCTOR DETECTORS; GERMANIUM; IONIZATION; NONLUMINOUS MATTER; PHONONS; SENSORS Experiment-HEP, General Physics,HEPEX, PHYS