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Proceedings Paper

Characterization and performance of the second-year SPT-3G focal plane
Author(s): D. Dutcher; P. A. R. Ade; Z. Ahmed; A. J. Anderson; J. S. Avva; R. Basu Thakur; A. N. Bender; B. A. Benson; J. E. Carlstrom; F. W. Carter; T. W. Cecil; C. L. Chang; J. F. Cliche; A. Cukierman; T. de Haan; J. Ding; M. A. Dobbs; W. Everett; A. Foster; J. Gallicchio; A. Gilbert; J. C. Groh; A. H. Harke-Hosemann; S. T. Guns; N. W. Halverson; N. L. Harrington; J. W. Henning; W. L. Holzapfel; N. Huang; K. D. Irwin; O. B. Jeong; M. Jonas; T. S. Khaire; A. M. Kofman; M. Korman; D. L. Kubik; S. Kuhlmann; C.-L. Kuo; A. E. Lowitz; A. T. Lee; S. S. Meyer; D. Michalik; J. Montgomery; A. Nadolski; T. Natoli; H. Nguyen; G. I. Noble; V. Novosad; S. Padin; Z. Pan; J. Pearson; C. M. Posada; W. Quan; A. Rahlin; J. E. Ruhl; J. T. Sayre; E. Shirokoff; G. Smecher; J. A. Sobrin; A. A. Stark; K. T. Story; A. Suzuki; K. L. Thompson; C. Tucker; K. Vanderlinde; J. D. Vieira; G. Wang; N. Whitehorn; V. Yefremenko; K. W. Yoon; M. R. Young
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Paper Abstract

The third-generation instrument for the 10-meter South Pole Telescope, SPT-3G, was first installed in January 2017. In addition to completely new cryostats, secondary telescope optics, and readout electronics, the number of detectors in the focal plane has increased by an order of magnitude from previous instruments to ~16,000. The SPT-3G focal plane consists of ten detector modules, each with an array of 269 trichroic, polarization-sensitive pixels on a six-inch silicon wafer. Within each pixel is a broadband, dual-polarization sinuous antenna; the signal from each orthogonal linear polarization is divided into three frequency bands centered at 95, 150, and 220 GHz by in-line lumped element filters and transmitted via superconducting microstrip to Ti/Au transition-edge sensor (TES) bolometers. Properties of the TES film, microstrip filters, and bolometer island must be tightly controlled to achieve optimal performance. For the second year of SPT-3G operation, we have replaced all ten wafers in the focal plane with new detector arrays tuned to increase mapping speed and improve overall performance. Here we discuss the TES superconducting transition temperature and normal resistance, detector saturation power, bandpasses, optical efficiency, and full array yield for the 2018 focal plane.

Paper Details

Date Published: 31 July 2018
PDF: 13 pages
Proc. SPIE 10708, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy IX, 107081Z (31 July 2018); doi: 10.1117/12.2312451
Show Author Affiliations
D. Dutcher, Kavli Institute for Cosmological Physics (United States)
The Univ. of Chicago (United States)
P. A. R. Ade, Cardiff Univ. (United Kingdom)
Z. Ahmed, Kavli Institute for Cosmological Physics (United States)
Stanford Univ. (United States)
SLAC National Accelerator Lab. (United Kingdom)
A. J. Anderson, Fermi National Accelerator Lab. (United States)
Kavli Institute for Cosmological Physics (United States)
The Univ. of Chicago (United States)
J. S. Avva, Univ. of California, Berkeley (United States)
R. Basu Thakur, Kavli Institute for Cosmological Physics (United States)
The Univ. of Chicago (United States)
A. N. Bender, Argonne National Lab. (United States)
Kavli Institute for Cosmological Physics (United States)
The Univ. of Chicago (United States)
B. A. Benson, Fermi National Accelerator Lab. (United States)
Kavli Institute for Cosmological Physics (United States)
The Univ. of Chicago (United Kingdom)
J. E. Carlstrom, Kavli Institute for Cosmological Physics (United States)
The Univ. of Chicago (United States)
Argonne National Lab. (United States)
F. W. Carter, Argonne National Lab. (United States)
Kavli Institute for Cosmological Physics (United States)
The Univ. of Chicago (United States)
T. W. Cecil, Argonne National Lab. (United States)
C. L. Chang, Argonne National Lab. (United States)
Kavli Institute for Cosmological Physics (United States)
The Univ. of Chicago (United States)
J. F. Cliche, McGill Univ. (Canada)
A. Cukierman, Univ. of California, Berkeley (United States)
T. de Haan, Univ. of California, Berkeley (United States)
J. Ding, Argonne National Lab. (United States)
M. A. Dobbs, McGill Univ. (Canada)
Canadian Institute for Advanced Research (Canada)
W. Everett, Univ. of Colorado Boulder (United States)
A. Foster, Case Western Reserve Univ. (United States)
J. Gallicchio, Kavli Institute for Cosmological Physics (United States)
The Univ. of Chicago (United States)
Harvey Mudd College (United States)
A. Gilbert, McGill Univ. (Canada)
J. C. Groh, Univ. of California, Berkeley (United States)
A. H. Harke-Hosemann, Argonne National Lab. (United States)
Univ. of Illinois at Urbana-Champaign (United States)
S. T. Guns, Univ. of California, Berkeley (United States)
N. W. Halverson, Univ. of Colorado Boulder (United States)
N. L. Harrington, Univ. of California, Berkeley (United States)
J. W. Henning, Argonne National Lab. (United States)
Kavli Institute for Cosmological Physics (United States)
The Univ. of Chicago (United States)
W. L. Holzapfel, Univ. of California, Berkeley (United States)
N. Huang, Univ. of California, Berkeley (United States)
K. D. Irwin, Kavli Institute for Particle Astrophysics & Cosmology (United States)
Stanford Univ. (United States)
SLAC National Accelerator Lab. (United States)
O. B. Jeong, Univ. of California, Berkeley (United States)
M. Jonas, Fermi National Accelerator Lab. (United States)
T. S. Khaire, Argonne National Lab. (United States)
A. M. Kofman, Univ. of Illinois at Urbana-Champaign (United States)
M. Korman, Case Western Reserve Univ. (United States)
D. L. Kubik, Fermi National Accelerator Lab. (United States)
S. Kuhlmann, Argonne National Lab. (United States)
C.-L. Kuo, Kavli Institute for Particle Astrophysics & Cosmology, Stanford Univ. (United States)
SLAC National Accelerator Lab. (United States)
A. E. Lowitz, Kavli Institute for Cosmological Physics (United States)
The Univ. of Chicago (United States)
A. T. Lee, Univ. of California, Berkeley (United States)
Lawrence Berkeley National Lab. (United States)
S. S. Meyer, Kavli Institute for Cosmological Physics (United States)
The Univ. of Chicago (United States)
D. Michalik, The Univ. of Chicago (United States)
J. Montgomery, McGill Univ. (Canada)
A. Nadolski, Univ. of Illinois at Urbana-Champaign (United States)
T. Natoli, Univ. of Toronto (Canada)
H. Nguyen, Fermi National Accelerator Lab. (United States)
G. I. Noble, McGill Univ. (Canada)
V. Novosad, Argonne National Lab. (United States)
S. Padin, Kavli Institute for Cosmological Physics (United States)
The Univ. of Chicago (United States)
Z. Pan, Kavli Institute for Cosmological Physics (United States)
The Univ. of Chicago (United States)
J. Pearson, Argonne National Lab. (United States)
C. M. Posada, Argonne National Lab. (United States)
W. Quan, Kavli Institute for Cosmological Physics (United States)
The Univ. of Chicago (United States)
A. Rahlin, Fermi National Accelerator Lab. (United States)
Kavli Institute for Cosmological Physics (United States)
The Univ. of Chicago (United States)
J. E. Ruhl, Case Western Reserve Univ. (United States)
J. T. Sayre, Univ. of Colorado Boulder (United States)
E. Shirokoff, Kavli Institute for Cosmological Physics (United States)
The Univ. of Chicago (United States)
G. Smecher, Three-Speed Logic, Inc. (Canada)
J. A. Sobrin, Kavli Institute for Cosmological Physics (United States)
The Univ. of Chicago (United States)
A. A. Stark, Harvard-Smithsonian Ctr. for Astrophysics (United States)
K. T. Story, Kavli Institute for Particle Astrophysics & Cosmology (United States)
Stanford Univ. (United States)
A. Suzuki, Lawrence Berkeley National Lab. (United States)
K. L. Thompson, Kavli Institute for Particle Astrophysics & Cosmology (United States)
Stanford Univ. (United States)
SLAC National Accelerator Lab. (United States)
C. Tucker, Cardiff Univ. (United Kingdom)
K. Vanderlinde, Univ. of Toronto (Canada)
J. D. Vieira, Univ. of Illinois at Urbana-Champaign (United States)
Univ. of Toronto (Canada)
G. Wang, Argonne National Lab. (United States)
N. Whitehorn, Univ. of California, Los Angeles (United States)
Univ. of California, Berkeley (United States)
V. Yefremenko, Argonne National Lab. (United States)
K. W. Yoon, Kavli Institute for Particle Astrophysics & Cosmology (United States)
Stanford Univ. (United States)
SLAC National Accelerator Lab. (United States)
M. R. Young, Univ. of Toronto (Canada)


Published in SPIE Proceedings Vol. 10708:
Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy IX
Jonas Zmuidzinas; Jian-Rong Gao, Editor(s)

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