Translator Disclaimer
15 July 2010 The cryomechanical design of MUSIC: a novel imaging instrument for millimeter-wave astrophysics at the Caltech Submillimeter Observatory
Author Affiliations +
Abstract
MUSIC (Multicolor Submillimeter kinetic Inductance Camera) is a new facility instrument for the Caltech Submillimeter Observatory (Mauna Kea, Hawaii) developed as a collaborative effect of Caltech, JPL, the University of Colorado at Boulder and UC Santa Barbara, and is due for initial commissioning in early 2011. MUSIC utilizes a new class of superconducting photon detectors known as microwave kinetic inductance detectors (MKIDs), an emergent technology that offers considerable advantages over current types of detectors for submillimeter and millimeter direct detection. MUSIC will operate a focal plane of 576 spatial pixels, where each pixel is a slot line antenna coupled to multiple detectors through on-chip, lumped-element filters, allowing simultaneously imaging in four bands at 0.86, 1.02, 1.33 and 2.00 mm. The MUSIC instrument is designed for closed-cycle operation, combining a pulse tube cooler with a two-stage Helium-3 adsorption refrigerator, providing a focal plane temperature of 0.25 K with intermediate temperature stages at approximately 50, 4 and 0.4 K for buffering heat loads and heat sinking of optical filters. Detector readout is achieved using semi-rigid coaxial cables from room temperature to the focal plane, with cryogenic HEMT amplifiers operating at 4 K. Several hundred detectors may be multiplexed in frequency space through one signal line and amplifier. This paper discusses the design of the instrument cryogenic hardware, including a number of features unique to the implementation of superconducting detectors. Predicted performance data for the instrument system will also be presented and discussed.
© (2010) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Matthew I. Hollister, Nicole G. Czakon, Peter K. Day, Thomas P. Downes, Ran Duan, Jiansong Gao, Jason Glenn, Sunil R. Golwala, Henry G. LeDuc, Philip R. Maloney, Benjamin A. Mazin, Hien Trong Nguyen, Omid Noroozian, Jack Sayers, James Schlaerth, Seth Siegel, John E. Vaillancourt, Anastasios Vayonakis, Philip Wilson, and Jonas Zmuidzinas "The cryomechanical design of MUSIC: a novel imaging instrument for millimeter-wave astrophysics at the Caltech Submillimeter Observatory", Proc. SPIE 7741, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy V, 77411L (15 July 2010); https://doi.org/10.1117/12.856780
PROCEEDINGS
12 PAGES


SHARE
Advertisement
Advertisement
RELATED CONTENT

The wide field imager instrument for Athena
Proceedings of SPIE (July 18 2016)
Matrix readout for superconducting tunnel junction arrays
Proceedings of SPIE (August 16 2000)
Solar adaptive optics: a progress report
Proceedings of SPIE (February 07 2003)
Design and performance of the SPIDER instrument
Proceedings of SPIE (July 15 2010)
Kiso observatory near-infrared camera with a large format array
Proceedings of SPIE (September 08 1995)
Superconducting kinetic inductance photon detectors
Proceedings of SPIE (December 18 2002)

Back to Top