Bolocam: a millimeter-wave bolometric camera

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

doi:10.1117/12.317418

31 July 1998 Bolocam: a millimeter-wave bolometric camera

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

Author Affiliations +

Proceedings Volume 3357, Advanced Technology MMW, Radio, and Terahertz Telescopes; (1998) https://doi.org/10.1117/12.317418
Event: Astronomical Telescopes and Instrumentation, 1998, Kona, HI, United States

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 (lambda) equals 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 f(lambda) (at (lambda) equals 1.4 mm), rather than the conventional 2 f(lambda) . 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.

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Jason Glenn, James J. Bock, Goutam Chattopadhyay, Samantha F. Edgington, Andrew E. Lange, Jonas Zmuidzinas, Philip D. Mauskopf, Brooks Rownd, Lunming Yuen, and Peter A. R. Ade "Bolocam: a millimeter-wave bolometric camera", Proc. SPIE 3357, Advanced Technology MMW, Radio, and Terahertz Telescopes, (31 July 1998); https://doi.org/10.1117/12.317418

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