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Year 2 instrument status from the SPT-3G cosmic microwave background receiver (Conference Presentation)

Conference · · Proc.SPIE Int.Soc.Opt.Eng.
DOI:https://doi.org/10.1117/12.2312426· OSTI ID:1480485

The South Pole Telescope (SPT) is a millimeter-wavelength telescope surveying the cosmic microwave background (CMB). The SPT measures both the temperature and polarization of the CMB with a large aperture, resulting in high-resolution maps sensitive to signals across a wide range of angular scales on the sky. With these capabilities, the SPT has the potential to constrain inflationary gravitational waves as well as the effect of massive neutrinos on large-scale structure formation. The SPT was upgraded in late 2016 with a new receiver (SPT-3G) containing 16,0000 polarization-sensitive transition-edge sensor bolometers. Several key technological developments have enabled this large-format focal, including advances in detectors, readout electronics, and large millimeter-wavelength optics. We will discuss the implementation of these technologies in the SPT-3G receiver as well as the challenges they presented. In late 2017 the implementations of all three of these technologies were iterated to optimize total performance. Here, we present the current instrument status of the SPT-3G receiver.

Research Organization:
Argonne National Lab. (ANL), Argonne, IL (United States); Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP)
DOE Contract Number:
AC02-07CH11359
OSTI ID:
1480485
Report Number(s):
arXiv:1809.00036; FERMILAB-CONF-18-498-AE-PPD; 1682417
Journal Information:
Proc.SPIE Int.Soc.Opt.Eng., Vol. 10708; Conference: SPIE Astronomical Telescopes + Instrumentation 2018, Austin, USA, 06/10-06/15/2018
Country of Publication:
United States
Language:
English

References (38)

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