Experimental Characterization of Space Charge in IZIP Detectors
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10909_2012_Article_587.pdf
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Author(s) • • • • • • • • •
Doughty, T.
Pyle, M.
Mirabolfathi, N.
Serfass, B.
Kamaev, O.
Hertel, S.
Brink, P.
Cabrera, B.
Sadoulet, B.
Leman, Steven W.
Date Issued
February 2012
Journal
Journal of Low Temperature Physics
Publisher
Springer US
Citation
Doughty, T. et al. “Experimental Characterization of Space Charge in IZIP Detectors.” Journal of Low Temperature Physics 167.5–6 (2012): 1087–1092.
Version
Author's final manuscript
Abstract
Interleaved ionization electrode geometries offer the possibility of efficient rejection of near-surface events. The CDMS collaboration has implemented this interleaved approach for the charge and phonon readout for our germanium detectors. During a recent engineering run with negligible ambient radiation, the detectors were found to lose ionization stability more quickly than expected. This paper summarizes studies done in order to determine the underlying cause of the instability, as well as possible running modes that maintain stability without unacceptable loss of livetime. Additionally, first results are shown for the new version IZIP mask which attempts to improve the overall stability of the detectors.
MIT Department
Lincoln Laboratory
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1007/s10909-012-0587-6