Bolocam: A millimeter-wave bolometric camera

被引：86

作者：

Glenn, J ^{[1
]}

Bock, JJ ^{[1
]}

Chattopadhyay, G ^{[1
]}

Edgington, SF ^{[1
]}

Lange, AE ^{[1
]}

Zmuidzinas, J ^{[1
]}

Mauskopf, PD ^{[1
]}

Rownd, B ^{[1
]}

Yuen, L ^{[1
]}

Ade, PAR ^{[1
]}

机构：

[1] CALTECH, Pasadena, CA 91125 USA

来源：

ADVANCED TECHNOLOGY MMW, RADIO, AND TERAHERTZ TELESCOPES | 1998年 / 3357卷

关键词：

bolometers; millimeter-wave;

D O I：

10.1117/12.317418

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

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 similar to 35 mJy Hz(-1/2) per pixel at lambda = 1.4 mm. Observations will be possible at one of lambda = 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 1.26f lambda (at lambda = 1.4 mm), rather than the conventional 2f 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.

引用

页码：326 / 334

页数：9