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Heterodyne instrumentation at the CSO

Kooi, Jacob W. and Schaffer, P. L. and Bumble, Bruce and LeDuc, Rick and Phillips, T. G. (1998) Heterodyne instrumentation at the CSO. In: Advanced Technology MMW, Radio, and Terahertz Telescopes. Proceedings of SPIE. No.3357. Society of Photo-optical Instrumentation Engineers (SPIE) , Bellingham, WA, pp. 22-32. ISBN 9780819428042.

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The Caltech Submillimeter observatory (CSO) is one of the World's premier submillimeter telescopes. It consists of a 10.4 meter diameter Leighton radio dish situated in compact dome near the summit of Mauna Kea, Hawaii. The telescope has been operating under a contract from the National Science Foundation on a regular basis since 1988. For the first time heterodyne Superconducting-Insulating-Superconducting (SIS) receivers with a 1 GHz intermediate frequency (IF) are available for the entire 180 - 950 GHz Submillimeter band. To enhance the extra-galactic capabilities of the observatory and to allow interferometry with the upcoming Submillimeter Array (SMA) project, we are actively working towards upgrading all heterodyne instruments with a 3 GHz IF bandwidth. Concurrent to the planned IF upgrade, we are constructing a dual polarization beam switching 345 GHz extra-galactic receiver, also with a 3 GHz IF bandwidth. Ideally, this instrument will give the CSO a factor of 8 improvement in integration time over the current 345 GHz receiver, and will be ideally suited for the study of highly red-shifted extra-galactic sources.

Item Type:Book Section
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Kooi, Jacob W.0000-0002-6610-0384
Additional Information:© 1998 Society of Photo-Optical Instrumentation Engineers (SPIE). This work was supported in part under NASA Grant NAGW-107 and NSF Grant AST96-15025.
Funding AgencyGrant Number
Subject Keywords:SIS junctions, Heterodyne Instrumentation, Intermediate Frequency, Sub-millimeter Astronomy
Series Name:Proceedings of SPIE
Issue or Number:3357
Record Number:CaltechAUTHORS:20180801-133517057
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Official Citation:Jacob W. Kooi, P. L. Schaffer, Bruce Bumble, Rick LeDuc, Thomas G. Phillips, "Heterodyne instrumentation at the CSO", Proc. SPIE 3357, Advanced Technology MMW, Radio, and Terahertz Telescopes, (31 July 1998); doi: 10.1117/12.317362;
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:88463
Deposited By: George Porter
Deposited On:01 Aug 2018 22:56
Last Modified:16 Nov 2021 00:27

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