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The POLARBEAR experiment

Kermish, Zigmund D., Ade, Peter A. R., Anthony, Aubra, Arnold, Kam, Barron, Darcy, Boettger, David, Borrill, Julian, Chapman, Scott, Chinone, Yuji, Dobbs, Matt A., Errard, Josquin, Fabbian, Giulio, Flanigan, Daniel, Fuller, George, Ghribi, Adnan, Grainger, Will, Halverson, Nils, Hasegawa, Masaya, Hattori, Kaori, Hazumi, Masashi, Holzapfel, William L., Howard, Jacob, Hyland, Peter, Jaffe, Andrew, Keating, Brian and , 2012. The POLARBEAR experiment. Presented at: Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VI, Amsterdam, The Netherlands, 1 July 2012. Proc. SPIE 8452, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VI. The International Society for Optical Engineering, 84521C. 10.1117/12.926354

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We present the design and characterization of the POLARBEAR experiment. POLARBEAR will measure the polarization of the cosmic microwave background (CMB) on angular scales ranging from the experiment’s 3.5’ beam size to several degrees. The experiment utilizes a unique focal plane of 1,274 antenna-coupled, polarization sensitive TES bolometers cooled to 250 milliKelvin. Employing this focal plane along with stringent control over systematic errors, POLARBEAR has the sensitivity to detect the expected small scale B-mode signal due to gravitational lensing and search for the large scale B-mode signal from inflationary gravitational waves. POLARBEAR was assembled for an engineering run in the Inyo Mountains of California in 2010 and was deployed in late 2011 to the Atacama Desert in Chile. An overview of the instrument is presented along with characterization results from observations in Chile.

Item Type: Conference or Workshop Item (Paper)
Date Type: Publication
Status: Published
Schools: Physics and Astronomy
Subjects: Q Science > QB Astronomy
Uncontrolled Keywords: Antennas; Bolometers; Engineering; Equipment and services; Polarization
Publisher: The International Society for Optical Engineering
ISSN: 0277-786X
Last Modified: 19 Dec 2017 04:43

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