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Title: Optimization of Transition Edge Sensor Arrays for Cosmic Microwave Background Observations With the South Pole Telescope

Journal Article · · IEEE Transactions on Applied Superconductivity

In this paper, we describe the optimization of transition-edge-sensor (TES) detector arrays for the third-generation camera for the South Pole Telescope. The camera, which contains ~16 000 detectors, will make high-angular-resolution maps of the temperature and polarization of the cosmic microwave background. Our key results are scatter in the transition temperature of Ti/Au TESs is reduced by fabricating the TESs on a thin Ti(5 nm)/Au(5 nm) buffer layer and the thermal conductivity of the legs that support our detector islands is dominated by the SiOx dielectric in the microstrip transmission lines that run along the legs.

Research Organization:
SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States); Argonne National Laboratory (ANL), Argonne, IL (United States); Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities Division; National Science Foundation (NSF); Gordon and Betty Moore Foundation; Natural Sciences and Engineering Research Council of Canada (NSERC); Canadian Institute for Advanced Research (CIFAR); Canada Research Chairs Program
Grant/Contract Number:
PLR-1248097; AC02-06CH11357; PHY-1125897; GBMF 947; AST-0956135; AC02-76SF00515; AC02-07CH11359
OSTI ID:
1352724
Alternate ID(s):
OSTI ID: 1347708; OSTI ID: 1352725; OSTI ID: 1458493; OSTI ID: 1767026
Report Number(s):
FERMILAB-PUB-17-706-AE; 7784774
Journal Information:
IEEE Transactions on Applied Superconductivity, Journal Name: IEEE Transactions on Applied Superconductivity Vol. 27 Journal Issue: 4; ISSN 1051-8223
Publisher:
Institute of Electrical and Electronics Engineers (IEEE)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 12 works
Citation information provided by
Web of Science

References (20)

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Detection of B -Mode Polarization in the Cosmic Microwave Background with Data from the South Pole Telescope journal September 2013
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Thermal conductance measurements for the development of ultra low-noise transition-edge sensors with a new method for measuring the noise equivalent power conference August 2008
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Fabrication of large dual-polarized multichroic TES bolometer arrays for CMB measurements with the SPT-3G camera journal August 2015
Neutrino physics from the cosmic microwave background and large scale structure journal March 2015
Low Loss Superconducting Microstrip Development at Argonne National Lab journal June 2015
A dual-polarized broadband planar antenna and channelizing filter bank for millimeter wavelengths journal February 2013

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