The CCAT-prime project's first light array will be deployed in Mod-Cam, a single-module testbed and first light cryostat, on the Fred Young Submillimeter Telescope (FYST) in Chile's high Atacama desert in late 2022. FYST is a six-meter aperture telescope being built on Cerro Chajnantor at an elevation of 5600 meters to observe at millimeter and submillimeter wavelengths.1 Mod-Cam will pave the way for Prime-Cam, the primary first generation instrument, which will house up to seven instrument modules to simultaneously observe the sky and study a diverse set of science goals from monitoring protostars to probing distant galaxy clusters and characterizing the cosmic microwave background (CMB). At least one feedhorn-coupled array of microwave kinetic inductance detectors (MKIDs) centered on 280 GHz will be included in Mod-Cam at first light, with additional instrument modules to be deployed along with Prime-Cam in stages. The first 280 GHz detector array was fabricated by the Quantum Sensors Group at NIST in Boulder, CO and includes 3,456 polarization-sensitive MKIDs. Current mechanical designs allow for up to three hexagonal arrays to be placed in each single instrument module. We present details on this first light detector array, including mechanical designs and cold readout plans, as well as introducing Mod-Cam as both a testbed and predecessor to Prime-Cam.
@article{arxiv.2012.10411,
title = {CCAT-prime: Designs and status of the first light 280 GHz MKID array and Mod-Cam receiver},
author = {Cody J. Duell and Eve M. Vavagiakis and Jason Austermann and Scott C. Chapman and Steve K. Choi and Nicholas F. Cothard and Brad Dober and Patricio Gallardo and Jiansong Gao and Christopher Groppi and Terry L. Herter and Gordon J. Stacey and Zachary Huber and Johannes Hubmayr and Doug Johnstone and Yaqiong Li and Philip Mauskopf and Jeff McMahon and Michael D. Niemack and Thomas Nikola and Kayla Rossi and Sara Simon and Adrian K. Sinclair and Michael Vissers and Jordan Wheeler and Bugao Zou},
journal= {arXiv preprint arXiv:2012.10411},
year = {2021}
}