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Bolocam: a millimeter-wave bolometric camera

Phillips, Thomas G., Glenn, Jason, Bock, James J., Chattopadhyay, Goutam, Edgington, Samantha F., Lange, Andrew E., Zmuidzinas, Jonas, Mauskopf, Philip Daniel, Rownd, Brooks, Yuen, Lunming and Ade, Peter A. R. 1998. Bolocam: a millimeter-wave bolometric camera. Presented at: Advanced Technology MMW, Radio, and Terahertz Telescopes, Kona, HI, 20 March, 1998. Published in: Phillips, Thomas G. ed. Advanced technology MMW, radio, and terahertz telescopes : 26-28 March 1998, Kona, Hawaii (Proceedings). SPIE , vol. 3357. Bellingham, WA: The International Society for Optical Engineering, p. 326. 10.1117/12.317418

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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 (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.

Item Type: Conference or Workshop Item (Paper)
Date Type: Publication
Status: Published
Schools: Physics and Astronomy
Subjects: Q Science > QB Astronomy
Uncontrolled Keywords: Cameras ; Extremely high frequency ; Detector arrays ; Sensors ; Silicon ; Diffraction ; Electronics ; Galaxy groups and clusters ; Observatories ; Scanning
Publisher: The International Society for Optical Engineering
ISBN: 9780819428042
ISSN: 0277-786X
Last Modified: 04 Jun 2017 07:55
URI: http://orca.cf.ac.uk/id/eprint/69749

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