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Title: Optimization of transition edge sensor arrays for cosmic microwave background observations with the south pole telescope

In this study, we describe the optimization of transition-edge-sensor (TES) detector arrays for the thirdgeneration camera for the South PoleTelescope.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
Authors:
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  1. Argonne National Lab. (ANL), Argonne, IL (United States)
  2. Cardiff Univ., Cardiff (United Kingdom)
  3. Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
  4. Univ. of California, Berkeley, CA (United States)
  5. Stanford Univ., Stanford, CA (United States)
  6. Univ. of Wisconsin, Madison, WI (United States)
  7. NIST Quantum Devices Group, Boulder, CO (United States)
  8. Univ. of Chicago, Chicago, IL (United States)
  9. SLAC National Accelerator Lab., Menlo Park, CA (United States)
  10. McGill Univ., Montreal, QC (Canada)
  11. Kavli Institute for Cosmological Physics, Chicago, IL (United States)
  12. Univ. of Colorado, Boulder, CO (United States)
  13. Univ. of Illinois, Urbana, IL (United States)
  14. Dept of Astrophysical and Planetary Sciences, Boulder, CO (United States)
  15. High Energy Accelerator Research Organization, Tsukuba (Japan)
  16. Univ. of Toronto, Toronto, ON (Canada)
  17. Univ. of Melbourne, Parkville, VIC (Australia)
  18. Case Western Reserve Univ., Cleveland, OH (United States)
  19. Three-Speed Logic, Inc., Vancouver, BC (Canada)
  20. Harvard-Smithsonian Center for Astrophysics, Cambridge, MA (United States)
  21. Kavli Institute for Particle Astrophysics and Cosmology, Menlo Park, CA (United States)
  22. Dunlap Institute for Astronomy and Astrophysics, Toronto, ON (Canada)
Publication Date:
Grant/Contract Number:
PLR-1248097; AC02-06CH11357; PHY-1125897; GBMF 947; AST-0956135; AC02-76SF00515
Type:
Published Article
Journal Name:
IEEE Transactions on Applied Superconductivity
Additional Journal Information:
Journal Volume: 27; Journal Issue: 4; Journal ID: ISSN 1051-8223
Publisher:
Institute of Electrical and Electronics Engineers (IEEE)
Research Org:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION; south pole telescope; transition edge sensors; superconducting detectors; bolometers; cosmic microwave background
OSTI Identifier:
1352724
Alternate Identifier(s):
OSTI ID: 1347708; OSTI ID: 1352725