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SuperCDMS Detector Readout Cryogenic Hardware

Seitz, D. N. and Ahmed, Z. and Filippini, J. and Golwala, S. R. and Moore, D. and Ogburn, R. W. and Wang, G. (2009) SuperCDMS Detector Readout Cryogenic Hardware. In: Low Temperature Detectors, LTD 13. AIP Conference Proceedings. No.1185. American Institute of Physics , Melville, NY, pp. 282-285. ISBN 978-0-7354-0751-0. http://resolver.caltech.edu/CaltechAUTHORS:20160512-080624897

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Abstract

SuperCDMS employs 1‐inch thick germanium crystals operated below 50mK in a dilution cryostat. Each detector produces ionization and phonon signals. Ionization signals are amplified by JFETs operating at 150K within an assembly mounted on the 4K cryostat stage. These high impedance signals are carried to the FETs by superconducting “vacuum coaxes” which minimize thermal conductivity, stray capacitance, and microphonics. Transition edge sensors produce low‐impedance phonon signals, amplified by SQUID arrays mounted on a 600mK stage. Detectors are mounted in a six‐sided wiring configuration called a “tower”, which carries signals from 40mK to 4K. A flex circuit 3 meters in length carries amplified signals for each detector from 4K to a vacuum bulkhead. We describe the methods used to support the detectors, wiring and amplifier elements at various thermal stages, minimizing electrical noise and thermal loads.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1063/1.3292334DOIArticle
http://scitation.aip.org/content/aip/proceeding/aipcp/10.1063/1.3292334PublisherArticle
ORCID:
AuthorORCID
Golwala, S. R.0000-0002-1098-7174
Additional Information:© 2009 American Institute of Physics. Published online 16 December 2009. This work is supported in part by the National Science Foundation (Grant Nos. AST-9978911, PHY-0542066, PHY-0503729, PHY-0503629, PHY-0503641, PHY-0504224, PHY-0705052, PHY-0801536, PHY-0801708, PHY-0801712 and PHY-0802575), by the Department of Energy (Contracts DE-AC03-76SF00098, DE-FG02-91ER40688, DEFG02-92ER40701, DE-FG03- 90ER40569, and DEFG03-91ER40618), by the Swiss National Foundation (SNF Grant No. 20-118119), and by NSERC Canada (Grant SAPIN 341314-07).
Funders:
Funding AgencyGrant Number
NSFAST-9978911
NSFPHY-0542066
NSFPHY-0503729
NSFPHY-0503629
NSFPHY-0503641
NSFPHY-0504224
NSFPHY-0705052
NSFPHY-0801536
NSFPHY-0801708
NSFPHY-0801712
NSFPHY-0802575
Department of Energy (DOE)DE-AC03-76SF00098
Department of Energy (DOE)DE-FG02-91ER40688
Department of Energy (DOE)DE-FG02- 92ER40701
Department of Energy (DOE)DE-FG03-90ER40569
Department of Energy (DOE)DE-FG03-91ER40618
Swiss National Foundation (SNF)20-118119
Natural Sciences and Engineering Research Council of Canada (NSERC)SAPIN 341314-07
Subject Keywords:CDMS, SuperCDMS, Dark Matter, Cold Hardware
Classification Code:PACS: 95.35.+d, 14.80.Ly, 73.61.Jc, 74.78.-w, 85.25.Oj, 85.25.-j
Record Number:CaltechAUTHORS:20160512-080624897
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20160512-080624897
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:67038
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:12 May 2016 21:21
Last Modified:11 Dec 2016 23:40

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