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Modeling and characterization of the SPIDER half-wave plate. Amiri, Mandana; Hasselfield, Matthew; Halpern, Mark
Abstract
Spider is a balloon-borne array of six telescopes that will observe the Cosmic Microwave Background. The 2624 antenna-coupled bolometers in the instrument will make a polarization map of the CMB with approximately one-half degree resolution at 145 GHz. Polarization modulation is achieved via a cryogenic sapphire half-wave plate (HWP) skyward of the primary optic. We have measured millimeter-wave transmission spectra of the sapphire at room and cryogenic temperatures. The spectra are consistent with our physical optics model, and the data gives excellent measurements of the indices of A-cut sapphire. We have also taken preliminary spectra of the integrated HWP, optical system, and detectors in the prototype Spider receiver. We calculate the variation in response of the HWP between observing the CMB and foreground spectra, and estimate that it should not limit the Spider constraints on inflation. Copyright 2010 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.
Item Metadata
Title |
Modeling and characterization of the SPIDER half-wave plate.
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Creator | |
Publisher |
Society of Photo-Optical Instrumentation Engineers (SPIE)
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Date Issued |
2010
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Description |
Spider is a balloon-borne array of six telescopes that will observe the Cosmic Microwave Background. The 2624
antenna-coupled bolometers in the instrument will make a polarization map of the CMB with approximately one-half
degree resolution at 145 GHz. Polarization modulation is achieved via a cryogenic sapphire half-wave plate (HWP)
skyward of the primary optic. We have measured millimeter-wave transmission spectra of the sapphire at room and
cryogenic temperatures. The spectra are consistent with our physical optics model, and the data gives excellent
measurements of the indices of A-cut sapphire. We have also taken preliminary spectra of the integrated HWP,
optical system, and detectors in the prototype Spider receiver. We calculate the variation in response of the
HWP between observing the CMB and foreground spectra, and estimate that it should not limit the Spider constraints
on inflation.
Copyright 2010 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.
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Genre | |
Type | |
Language |
eng
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Date Available |
2011-09-13
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Provider |
Vancouver : University of British Columbia Library
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Rights |
Attribution-NonCommercial-NoDerivatives 4.0 International
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DOI |
10.14288/1.0107577
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URI | |
Affiliation | |
Citation |
Bryan, Sean A.; Ade, Peter A. R.; Amiri, Mandana; Benton, Steven J.; Bihary, Richard; Bock, James J.; Bond, J. Richard; Bonetti, Joseph A.; Chiang, H. Cynthia; Contaldi, Carlo R.; Crill, Brendan P.; O'Dea, Daniel T.; Dore, Olivier; Farhang, Marzieh; Filippini, Jeffrey P.; Fissel, Laura M.; Gandilo, Natalie N.; Golwala, Sunil; Gudmundsson, Jon E.; Hasselfield, Matthew; Halpern, Mark; Helson, Kyle R.; Hilton, Gene C.; Holmes, Warren; Hristov, Viktor V.; Irwin, Kent D.; Jones, William C; Kuo, Chao Lin; MacTavish, Carrie J.; Mason, Peter V.; Morford, Tracy A.; Montory, Thomas E.; Netterfield, C. Barth; Rahlin, Alexandra S.; Reintsema, Carl D.; Riley, Daniel; Ruhl, John E.; Runyan, Marcus C.; Schenker, Matthew A.; Shariff, Jamil A.; Soler, Juan Diego; Transrud, Amy; Tucker, Rebecca S.; Tucker, Carole E.; Turner, Anthony D. Modeling and characterization of the SPIDER half-wave plate. Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy V, edited by Wayne S. Holland, Jonas Zmuidzinas, Proceedings of SPIE Volume 7741, 77412B, 2010.
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Publisher DOI |
10.1117/12.857837
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Peer Review Status |
Reviewed
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Scholarly Level |
Faculty
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Copyright Holder |
Halpern, Mark
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Rights URI | |
Aggregated Source Repository |
DSpace
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Item Media
Item Citations and Data
Rights
Attribution-NonCommercial-NoDerivatives 4.0 International