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The South Pole Telescope

Ruhl, John, Ade, Peter A. R., Carlstrom, John E., Cho, Hsiao-Mei, Crawford, Thomas, Dobbs, Matt, Greer, Christ H., Halverson, Nils W., Holzapfel, William L., Lanting, Tevor M., Lee, Adrian T., Leitch, Erik M., Leong, Jon, Lu, Wenyang, Lueker, Martin, Mehl, Jared, Meyer, Stephan S., Mohr, Joe J., Padin, Steve, Plagge, T., Pryke, Clem, Runyan, Marcus C., Schwan, Dan, Sharp, K., Spieler, Helmuth, Staniszewski, Zak and Stark, Antony A. 2004. The South Pole Telescope. Presented at: Millimeter and Submillimeter Detectors for Astronomy II, Glasgow, UK, 23-25 June 2004. Published in: Zmuidzinas, Jonas, Holland, Wayne S. and Withington, Stafford eds. Millimeter and Submillimeter Detectors for Astronomy II (Proceedings). Proceedings of the SPIE , vol. 5498. Bellingham, WA: SPIE, 10.1117/12.552473

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A new 10 meter diameter telescope is being constructed for deployment at the NSF South Pole research station. The telescope is designed for conducting large-area millimeter and sub-millimeter wave surveys of faint, low contrast emission, as required to map primary and secondary anisotropies in the cosmic microwave background. To achieve the required sensitivity and resolution, the telescope design employs an off-axis primary with a 10 meter diameter clear aperture. The full aperture and the associated optics will have a combined surface accuracy of better than 20 microns rms to allow precision operation in the submillimeter atmospheric windows. The telescope will be surrounded with a large reflecting ground screen to reduce sensitivity to thermal emission from the ground and local interference. The optics of the telescope will support a degree field of view at 2mm wavelength and will feed a new 1000-element micro-lithographed planar bolometric array with superconducting transition-edge sensors and frequency-multiplexed readouts. The first key project will be to conduct a survey over 4000 degrees for galaxy clusters using the Sunyaev-Zel'dovich Effect. This survey should find many thousands of clusters with a mass selection criteria that is remarkably uniform with redshift. Armed with redshifts obtained from optical and infrared follow-up observations, it is expected that the survey will enable significant constraints to be placed on the equation of state of the dark energy.

Item Type: Conference or Workshop Item (Paper)
Date Type: Publication
Status: Published
Schools: Physics and Astronomy
Subjects: Q Science > QB Astronomy
Uncontrolled Keywords: Extremely high frequency ; Galaxy groups and clusters ; Multiplexing ; Optics ; Sensors ; Superconductors ; Telescope design ; Telescopes
Publisher: SPIE
ISBN: 9780819454300
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Last Modified: 04 Jun 2017 04:38

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