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Bolocam: a millimeter-wave bolometric camera

Glenn, J. and Bock, J. J. and Chattopadhyay, G. and Edgington, S. F. and Lange, A. E. and Zmuidzinas, J. and Mauskopf, P. D. and Rownd, B. and Yuen, L. and Ade, P. A. R. (1998) Bolocam: a millimeter-wave bolometric camera. In: Advanced Technology MMW, Radio, and Terahertz Telescopes. Proceedings of SPIE. No.3357. Society of Photo-optical Instrumentation Engineers (SPIE) , Bellingham, WA, pp. 326-334. ISBN 9780819428042. https://resolver.caltech.edu/CaltechAUTHORS:20180813-091037341

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Abstract

We describe the design of Bolocam, a bolometric camera for millimeter-wave observations at the Caltech Submillimeter Observatory. Bolocam will have 144 diffraction-limited detectors operating at 300 mK, an 8 arcminute field of view, and a sky noise limited NEFD of approximately 35 mJy Hz^(-1/2) per pixel at λ = 1.4 mm. Observations will be possible at one of (lambda) equals 1.1., 1.4, or 2.1 mm per observing run. The detector array consists of sensitive NTD Ge thermistors bonded to silicon nitride micromesh absorbers patterned on a single wafer of silicon. This is a new technology in millimeter-wave detector array construction. To increase detector packing density, the feed horns will be spaced by 1.26 fλ (at λ = 1.4 mm), rather than the conventional 2fλ . DC stable read out electronics will enable on-the-fly mapping and drift scanning. We will use Bolocam to map Galactic dust emission, to search for protogalaxies, and to observe the Sunyaev- Zel'dovich effect toward galaxy clusters.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
https://doi.org/10.1117/12.317418DOIArticle
ORCID:
AuthorORCID
Chattopadhyay, G.0000-0001-7942-5025
Ade, P. A. R.0000-0002-5127-0401
Additional Information:© 1998 Society of Photo-Optical Instrumentation Engineers (SPIE). We thank Tom Phillips, Gene Serabyn, and Luca Olmi for useful discussions regarding the design of the Bolocam optics. We thank Matt Griffin and Walter Gear for discussions regarding mapping speed as a function of feed horn spacing. The construction of Bolocam is funded by a JPL President's Fund grant to P. Mauskopf and J. J. Bock, by the Large Millimeter Telescope project, and by NASA through the Advanced Technology Program. The Caltech Submillimeter Observatory is operated by Caltech under a grant from the National Science Foundation.
Funders:
Funding AgencyGrant Number
JPL Director's Discretionary FundUNSPECIFIED
NASAUNSPECIFIED
NSFUNSPECIFIED
Subject Keywords:bolometers, millimeter-wave
Series Name:Proceedings of SPIE
Issue or Number:3357
Record Number:CaltechAUTHORS:20180813-091037341
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20180813-091037341
Official Citation:Jason Glenn, James J. Bock, Goutam Chattopadhyay, Samantha F. Edgington, Andrew E. Lange, Jonas Zmuidzinas, Philip D. Mauskopf, Brooks Rownd, Lunming Yuen, Peter A. R. Ade, "Bolocam: a millimeter-wave bolometric camera", Proc. SPIE 3357, Advanced Technology MMW, Radio, and Terahertz Telescopes, (31 July 1998); doi: 10.1117/12.317418; https://doi.org/10.1117/12.317418
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:88781
Collection:CaltechAUTHORS
Deposited By: George Porter
Deposited On:13 Aug 2018 20:18
Last Modified:03 Oct 2019 20:10

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