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Proceedings Paper

MUSCAT: the Mexico-UK Sub-Millimetre Camera for AsTronomy
Author(s): Thomas L. R. Brien; Peter A. R. Ade; Peter S. Barry; Edgar Castillo-Domìnguez; Daniel Ferrusca; Thomas Gascard; Victor Gómez; Peter C. Hargrave; Amber L. Hornsby; David Hughes; Enzo Pascale; Josie D. A. Parrianen; Abel Perez; Sam Rowe; Carole Tucker; Salvador Ventura González; Simon M. Doyle
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Paper Abstract

The Mexico-UK Sub-millimetre Camera for AsTronomy (MUSCAT) is a large-format, millimetre-wave camera consisting of 1,500 background-limited lumped-element kinetic inductance detectors (LEKIDs) scheduled for deployment on the Large Millimeter Telescope (Volcán Sierra Negra, Mexico) in 2018. MUSCAT is designed for observing at 1.1 mm and will utilise the full 40 field of view of the LMTs upgraded 50-m primary mirror. In its primary role, MUSCAT is designed for high-resolution follow-up surveys of both galactic and extra-galactic sub-mm sources identified by Herschel. MUSCAT is also designed to be a technology demonstrator will provide the first on-sky demonstrations of novel design concepts such as horn-coupled LEKID arrays and closed continuous cycle miniature dilution refrigeration.

Here we describe some of the key design elements of the MUSCAT instrument such as the novel use of continuous sorption refrigerators and a miniature dilutor for continuous 100-mK cooling of the focal plane, broadband optical coupling to Aluminium LEKID arrays using waveguide chokes and anti-reflection coating materials as well as with the general mechanical and optical design of MUSCAT. We will explain how MUSCAT is designed to be simple to upgrade and the possibilities for changing the focal plane unit that allows MUSCAT to act as a demonstrator for other novel technologies such as multi-chroic polarisation sensitive pixels and on-chip spectrometry in the future. Finally, we will report on the current status of MUSCAT's commissioning.

Paper Details

Date Published: 9 July 2018
PDF: 9 pages
Proc. SPIE 10708, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy IX, 107080M (9 July 2018); doi: 10.1117/12.2313697
Show Author Affiliations
Thomas L. R. Brien, Cardiff Univ. (United Kingdom)
Peter A. R. Ade, Cardiff Univ. (United Kingdom)
Peter S. Barry, Cardiff Univ. (United Kingdom)
Kavli Institute for Cosmological Physics (United States)
The Univ. of Chicago (United States)
Edgar Castillo-Domìnguez, Instituto Nacional de Astrofísica, Óptica y Electrónica (Mexico)
Daniel Ferrusca, Instituto Nacional de Astrofísica, Óptica y Electrónica (Mexico)
Thomas Gascard, Cardiff Univ. (United Kingdom)
Victor Gómez, Instituto Nacional de Astrofísica, Óptica y Electrónica (Mexico)
Peter C. Hargrave, Cardiff Univ. (United Kingdom)
Amber L. Hornsby, Cardiff Univ. (United Kingdom)
David Hughes, Instituto Nacional de Astrofísica, Óptica y Electrónica (Mexico)
Enzo Pascale, Sapienza Univ. di Roma (Italy)
Josie D. A. Parrianen, Cardiff Univ. (United Kingdom)
Abel Perez, Instituto Nacional de Astrofísica, Óptica y Electrónica (Mexico)
Sam Rowe, Cardiff Univ. (United Kingdom)
Carole Tucker, Cardiff Univ. (United Kingdom)
Salvador Ventura González, Instituto Nacional de Astrofísica, Óptica y Electrónica (Mexico)
Simon M. Doyle, Cardiff Univ. (United Kingdom)


Published in SPIE Proceedings Vol. 10708:
Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy IX
Jonas Zmuidzinas; Jian-Rong Gao, Editor(s)

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