Phonon Quasidiffusion in Cryogenic Dark Matter Search Large Germanium Detectors
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Figueroa_Phonon quasidiffusion.pdf
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Author(s)
Leman, Steven W.
McCarthy, Kevin Ahmad
Figueroa-Feliciano, Enectali
Cabrera, B.
Pyle, M.
Resch, R.
Sadoulet, B.
Sundqvist, K. M.
Brink, P. L.
do Couto e Silva, Eduardo
Date Issued
February 2011
Journal
Chinese Journal of Chemical Physics
Publisher
IOP Publishing
Citation
Leman, S. W. et al. “Phonon Quasidi usion in Cryogenic Dark Matter Search Large Germanium
Detectors.” Chinese Journal of Physics 49.1 (2011): 349–358.
Version
Author's final manuscript
Abstract
We present results on quasidi usion 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 di erent detector types, with di erent phonon sensor area coverage,
with results from a Monte Carlo. The Monte Carlo includes phonon quasidi usion and the
generation of phonons created by charge carriers as they are drifted across the detector by ionization readout channels.
MIT Department
Massachusetts Institute of Technology. Department of Physics
MIT Kavli Institute for Astrophysics and Space Research
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DOI of Published Version
http://psroc.phys.ntu.edu.tw/cjp/download.php?type=full&vol=49&num=1&page=349
