@inproceedings{7b10d5288dd546cd8b9b8945d152d4fb,
title = "Simons Observatory large aperture telescope receiver design overview",
abstract = "The Simons Observatory (SO) will make precision temperature and polarization measurements of the cosmic microwave background (CMB) using a series of telescopes which will cover angular scales between one arcminute and tens of degrees and sample frequencies between 27 and 270 GHz. Here we present the current design of the large aperture telescope receiver (LATR), a 2.4m diameter cryostat that will be mounted on the SO 6m telescope and will be the largest CMB receiver to date. The cryostat size was chosen to take advantage of the large focal plane area having high Strehl ratios, which is inherent to the Cross-Dragone telescope design. The LATR will be able to accommodate thirteen optics tubes, each having a 36 cm diameter aperture and illuminating several thousand transition-edge sensor (TES) bolometers. This set of equipment will provide an opportunity to make measurements with unparalleled sensitivity. However, the size and complexity of the LATR also pose numerous technical challenges. In the following paper, we present the design of the LATR and include how we address these challenges. The solutions we develop in the process of designing the LATR will be informative for the general CMB community, and for future CMB experiments like CMB-S4.",
keywords = "CMB, LATR, SO, Simons Observatory, cryogenic, ground-based telescope, large aperture telescope receiver",
author = "Ningfeng Zhu and Orlowski-Scherer, {John L.} and Zhilei Xu and Aamir Ali and Arnold, {Kam S.} and Ashton, {Peter C.} and Gabriele Coppi and Devlin, {Mark J.} and Simon Dicker and Nicholas Galitzki and Gallardo, {Patricio A.} and Henderson, {Shawn W.} and Ho, {Shuay Pwu Patty} and Johannes Hubmayr and Brian Keating and Lee, {Adrian T.} and Michele Limon and Marius Lungu and Mauskopf, {Philip D.} and May, {Andrew J.} and Jeff McMahon and Niemack, {Michael D.} and Lucio Piccirillo and Giuseppe Puglisi and Rao, {Mayuri Sathyanarayana} and Maria Salatino and Max Silva-Feaver and Simon, {Sara M.} and Suzanne Staggs and Robert Thornton and Ullom, {Joel N.} and Vavagiakis, {Eve M.} and Benjamin Westbrook and Wollack, {Edward J.}",
note = "Publisher Copyright: {\textcopyright} 2018 SPIE.; Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy IX 2018 ; Conference date: 12-06-2018 Through 15-06-2018",
year = "2018",
doi = "10.1117/12.2312871",
language = "English (US)",
isbn = "9781510619692",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
editor = "Jonas Zmuidzinas and Jian-Rong Gao",
booktitle = "Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy IX",
address = "United States",
}