Conference Proceedings

The POLARBEAR Experiment

Zigmund D Kermish, Peter Ade, Aubra Anthony, Kam Arnold, Darcy Barron, David Boettger, Julian Borrill, Scott Chapman, Yuji Chinone, Matt A Dobbs, Josquin Errard, Giulio Fabbian, Daniel Flanigan, George Fuller, Adnan Ghribi, Will Grainger, Nils Halverson, Masaya Hasegawa, Kaori Hattori, Masashi Hazumi Show all

MILLIMETER, SUBMILLIMETER, AND FAR-INFRARED DETECTORS AND INSTRUMENTATION FOR ASTRONOMY VI | SPIE-INT SOC OPTICAL ENGINEERING | Published : 2012

Abstract

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 In..

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University of Melbourne Researchers

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Awarded by National Science Foundation


Awarded by NASA


Awarded by MEXT KAKENHI


Awarded by Grants-in-Aid for Scientific Research


Funding Acknowledgements

The POLARBEAR project is funded by the National Science Foundation under grant AST-0618398. Antennacoupled bolometer development at Berkeley is funded by NASA under grant NNG06GJ08G. The McGill authors acknowledge funding from the Natural Sciences and Engineering Research Council and Canadian Institute for Advanced Research. MD acknowledges support from an Alfred P. Sloan Research Fellowship and Canada Research Chair program. The KEK authors were supported by MEXT KAKENHI Grant Number 21111002. All silicon wafer- based technology is fabricated at the UC Berkeley Microlab.