Monte Carlo comparisons to a cryogenic dark matter search detector with low transition-edge-sensor transition temperature
Abstract
We present results on phonon quasidiffusion and Transition Edge Sensor (TES) studies in a large, 3 inch diameter, 1 inch thick [100] high purity germanium crystal, 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 calibration data with results from a Monte Carlo which includes phonon quasidiffusion and the generation of phonons created by charge carriers as they are drifted across the detector by ionization readout channels. The phonon energy is then parsed into TES based phonon readout channels and input into a TES simulator.
- Publication:
-
Journal of Applied Physics
- Pub Date:
- November 2011
- DOI:
- 10.1063/1.3658815
- arXiv:
- arXiv:1109.1198
- Bibcode:
- 2011JAP...110i4515L
- Keywords:
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- calibration;
- cosmic ray apparatus;
- gamma-ray detection;
- ionisation;
- Monte Carlo methods;
- phonons;
- 96.50.S-;
- Cosmic rays;
- Physics - Instrumentation and Detectors;
- Astrophysics - Instrumentation and Methods for Astrophysics;
- Condensed Matter - Materials Science
- E-Print:
- doi:10.1063/1.3658815