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Instrument design and characterization of the Millimeter Bolometer Array Camera on the Atacama Cosmology Telescope.

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Title: Instrument design and characterization of the Millimeter Bolometer Array Camera on the Atacama Cosmology Telescope.
Author: Amiri, Mandana; Burger, Bryce; Halpern, Mark; Hasselfield, Matthew; Knotek, Stan
Issue Date: 2008
Publicly Available in cIRcle 2011-09-13
Publisher Society of Photo-Optical Instrumentation Engineers
Citation: Swetz, Daniel S.; Ade, Peter A. R.; Allen, C.; Amiri, Mandana; Appel, John W.; Battistelli, Elia S.; Burger, Bryce; Chervenak, James A.; Dahlen, Alex J.; Das, Sudeep; Denny, S.; Devlin, Mark J.; Dicker, Simon R.; Doriese, William B.; Dünner, Rolando; Thomas M. Essinger-Hileman, Fisher, Ryan P.; Fowler, Joseph W.; Gao, Xiaofeng; Hajian, Amir; Halpern, Mark; Hargrave, Peter C.; Hasselfield, Matthew; Hilton, Gene C.; Hincks, Adam D.; Irwin, Kent D.; Jarosik, Norman C.; Kaul, Madhuri; Klein, Jeffery; Knotek, Stan; Lau, Judy M.; Limon, Michele; Lupton, Robert H.; Marriage, Tobias A.; Martocci, Krista L.; Mauskopf, Philip D.; Moseley, S. Harvey; Netterfield, C. Barth; Niemack, Michael D.; Nolta, Michael R.; Page, Lyman A.; Lucas P. Parker, B. A. Reid, Reintsema, Carl D.; Sederberg, Audrey J.; Sehgal, Neelima; Sievers, Jonathan L.; Spergel, David N.; Staggs, Suzanne T.; Stryzak, Omelan R.; Switzer, Eric R.; Thornton, Robert J.; Tucker, Carole E.; Wollack, Edward J.; Zhao, Yue. Instrument design and characterization of the Millimeter Bolometer Array Camera on the Atacama Cosmology Telescope. Millimeter and Submillimeter Detectors and Instrumentation for Astronomy IV, edited by William D. Duncan, Wayne S. Holland, Stafford Withington, Jonas Zmuidzinas, Proceedings of SPIE Volume 7020, 702008, 2008. http://dx.doi.org/10.1117/12.789876
Abstract: The Millimeter Bolometer Array Camera (MBAC) was commissioned in the fall of 2007 on the new 6-meterAtacama Cosmology Telescope (ACT). The MBAC on the ACT will map the temperature anisotropies of theCosmic Microwave Background (CMB) with arc-minute resolution. For this first observing season, the MBACcontained a diffraction-limited, 32 by 32 element, focal plane array of Transition Edge Sensor (TES) bolometersfor observations at 145 GHz. This array was coupled to the telescope with a series of cold, refractive, reimagingoptics. To meet the performance specifications, the MBAC employs four stages of cooling using closed-cycle3He/4He sorption fridge systems in combination with pulse tube coolers. In this paper we present the design ofthe instrument and discuss its performance during the first observing season. Finally, we report on the statusof the MBAC for the 2008 observing season, when the instrument will be upgraded to a total of three separate1024-element arrays at 145 GHz, 220 GHz and 280 GHz. Copyright 2008 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.
Affiliation: Science, Faculty ofPhysics and Astronomy, Department of
URI: http://hdl.handle.net/2429/37292
Peer Review Status: Reviewed
Scholarly Level: Faculty

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