Development and performance of universal readout harness for the Simons Observatory

Jenna E. Moore; Tanay Bhandarkar; Brooke DiGia; Cody Duell; Nicholas Galitzki; Justin Mathewson; John Orlowski-Scherer; Max Silva-Feaver; Yuhan Wang; Caleb Wheeler; Zhilei Xu; Philip Mauskopf

doi:10.1117/12.2630527

31 August 2022 Development and performance of universal readout harness for the Simons Observatory

Jenna E. Moore, Tanay Bhandarkar, Brooke DiGia, Cody Duell, Nicholas Galitzki, Justin Mathewson, John Orlowski-Scherer, Max Silva-Feaver, Yuhan Wang, Caleb Wheeler, Zhilei Xu, Philip Mauskopf

Author Affiliations +

Proceedings Volume 12190, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy XI; 1219025 (2022) https://doi.org/10.1117/12.2630527
Event: SPIE Astronomical Telescopes + Instrumentation, 2022, Montréal, Québec, Canada

Conference Poster

Abstract

The Simons Observatory (SO) is a ground-based cosmic microwave background (CMB) survey experiment that consists of three 0.5 m small-aperture telescopes and one 6 m large-aperture telescope, sited at an elevation of 5200 m in the Atacama Desert in Chile. SO will utilize more than 60,000 transition edge sensors (TES) to observe CMB temperature and polarization in six frequency bands from 27-280 GHz. Common to both the small and large aperture telescope receivers (LATR) is the 300K-4K Universal Readout Harness (URH), which supports up to 600 DC bias lines and 24 radio frequency (RF) channels consisting of input and output coaxial cables, input attenuators and custom high dynamic range 40K low-noise amplifiers (LNAs) on the output readout coaxial cable. Each RF channel can read out up to 1000 TES detectors. In this paper, we will present the design and characterization of the six URHs constructed for the initial phase of SO deployment.

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Jenna E. Moore, Tanay Bhandarkar, Brooke DiGia, Cody Duell, Nicholas Galitzki, Justin Mathewson, John Orlowski-Scherer, Max Silva-Feaver, Yuhan Wang, Caleb Wheeler, Zhilei Xu, and Philip Mauskopf "Development and performance of universal readout harness for the Simons Observatory", Proc. SPIE 12190, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy XI, 1219025 (31 August 2022); https://doi.org/10.1117/12.2630527

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