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Year two instrument status of the SPT-3G cosmic microwave background receiver
A. N. Bender, P. A. R. Ade, Z. Ahmed +86
The South Pole Telescope (SPT) is a millimeter-wavelength telescope designed for high-precision measurements of the cosmic microwave background (CMB). The SPT measures both the tem…
Characterization and performance of the second-year SPT-3G focal plane
D. Dutcher, P. A. R. Ade, Z. Ahmed +68
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 opt…
Design and characterization of the SPT-3G receiver
J. A. Sobrin, P. A. R. Ade, Z. Ahmed +68
The SPT-3G receiver was commissioned in early 2017 on the 10-meter South Pole Telescope (SPT) to map anisotropies in the cosmic microwave background (CMB). New optics, detector, an…
Broadband anti-reflective coatings for cosmic microwave background experiments
A. Nadolski, A. M. Kofman, J. D. Vieira +71
The desire for higher sensitivity has driven ground-based cosmic microwave background (CMB) experiments to employ ever larger focal planes, which in turn require larger reimaging o…
Digital frequency multiplexing with sub-Kelvin SQUIDs
Amy E. Lowitz, Amy N. Bender, Matthew A. Dobbs +1
Digital frequency multiplexing (dfMux) is a readout architecture for transition edge sensor-based detector arrays and is used on telescopes including SPT-3G, POLARBEAR-2, and LiteB…
Optical Characterization of the SPT-3G Focal Plane
Zhaodi Pan, Peter Ade, Zeeshan Ahmed +73
The third-generation South Pole Telescope camera is designed to measure the cosmic microwave background across three frequency bands (95, 150 and 220 GHz) with ~16,000 transition-e…