The 90 and 150 GHz universal focal-plane modules for the Simons Observatory. (arXiv:2112.01458v1 [astro-ph.IM])

The 90 and 150 GHz universal focal-plane modules for the Simons Observatory. (arXiv:2112.01458v1 [astro-ph.IM])
<a href="http://arxiv.org/find/astro-ph/1/au:+McCarrick_H/0/1/0/all/0/1">Heather McCarrick</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Arnold_K/0/1/0/all/0/1">Kam Arnold</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Atkins_Z/0/1/0/all/0/1">Zachary Atkins</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Austermann_J/0/1/0/all/0/1">Jason Austermann</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Bhandarkar_T/0/1/0/all/0/1">Tanay Bhandarkar</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Choi_S/0/1/0/all/0/1">Steve K. Choi</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Duell_C/0/1/0/all/0/1">Cody J. Duell</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Duff_S/0/1/0/all/0/1">Shannon M. Duff</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Dutcher_D/0/1/0/all/0/1">Daniel Dutcher</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Galitzk_N/0/1/0/all/0/1">Nicholas Galitzk</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Healy_E/0/1/0/all/0/1">Erin Healy</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Huber_Z/0/1/0/all/0/1">Zachary B. Huber</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Hubmayr_J/0/1/0/all/0/1">Johannes Hubmayr</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Johnson_B/0/1/0/all/0/1">Bradley R. Johnson</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Niemack_M/0/1/0/all/0/1">Michael D. Niemack</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Seibert_J/0/1/0/all/0/1">Joseph Seibert</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Silva_Feaver_M/0/1/0/all/0/1">Maximiliano Silva-Feaver</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Sonka_R/0/1/0/all/0/1">Rita F. Sonka</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Staggs_S/0/1/0/all/0/1">Suzanne T. Staggs</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Vavagiakis_E/0/1/0/all/0/1">Eve M. Vavagiakis</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Wang_Y/0/1/0/all/0/1">Yuhan Wang</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Xu_Z/0/1/0/all/0/1">Zhilei Xu</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Zheng_K/0/1/0/all/0/1">Kaiwen Zheng</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Zhu_N/0/1/0/all/0/1">Ningfeng Zhu</a>

The Simons Observatory (SO) is a suite of telescopes located in the Atacama
Desert in Chile that will make sensitive measurements of the cosmic microwave
background. There are a host of cosmological and astrophysical questions that
SO is forecasted to address. The universal focal-plane modules (UFMs) populate
the four SO telescope receiver focal planes. There are three varieties of UFMs,
each of which contains transition-edge-sensor bolometers observing in two
spectral bands between 30 and 290~GHz. We describe the novel mid-frequency
UFMs, which target two of the six spectral bands at 90 and 150~GHz and are
central to the cosmological goals of SO.

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