CCAT-prime: Design of the Mod-Cam receiver and 280 GHz MKID instrument module
astro-ph.IM
/ Authors
Eve M. Vavagiakis, Cody J. Duell, Jason Austermann, James Beall, Tanay Bhandarkar, Scott C. Chapman, Steve K. Choi, Gabriele Coppi, Simon Dicker, Mark Devlin
and 26 more authors
Rodrigo G. Freundt, Jiansong Gao, Christopher Groppi, Terry L. Herter, Zachary B. Huber, Johannes Hubmayr, Doug Johnstone, Ben Keller, Anna M. Kofman, Yaqiong Li, Philip Mauskopf, Jeff McMahon, Jenna Moore, Colin C. Murphy, Michael D. Niemack, Thomas Nikola, John Orlowski-Scherer, Kayla M. Rossi, Adrian K. Sinclair, Gordon J. Stacey, Joel Ullom, Michael Vissers,
/ Abstract
Mod-Cam is a first light and commissioning instrument for the CCAT-prime project's six-meter aperture Fred Young Submillimeter Telescope (FYST), currently under construction at 5600 m on Cerro Chajnantor in Chile's Atacama Desert. Prime-Cam, a first-generation science instrument for FYST, will deliver over ten times greater mapping speed than current and near-term facilities for unprecedented 280-850 GHz broadband and spectroscopic measurements with microwave kinetic inductance detectors (MKIDs). CCAT-prime will address a suite of science goals, from Big Bang cosmology to star formation and galaxy evolution over cosmic time. Mod-Cam deployment on FYST with a 280 GHz instrument module containing MKID arrays is planned for early science observations in 2024. Mod-Cam will be used to test instrument modules for Prime-Cam, which can house up to seven instrument modules. We discuss the design and status of the 0.9 m diameter, 1.8 m long Mod-Cam receiver and 40 cm diameter 280 GHz instrument module, with cold stages at 40 K, 4 K, 1 K, and 100 mK. We also describe the instrument module's cryogenic readout designs to enable the readout of more than 10,000 MKIDs across 18 networks.