Modeling and characterization of the SPIDER half-wave plate
Modeling and characterization of the SPIDER half-wave plate
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.
Warren Holmes、Anthony Turner、Steve Benton、Matthew A. Schenker、Matthew Hasselfield、Natalie Gandilo、Kent D. Irwin、Joseph A. Bonetti、Olivier Dore、James J. Bock、Jon E. Gudmundsson、Amy Trangsrud、Sean A. Bryan、Mandana Amiri、Carlo R. Contaldi、Tracy Morford、Daniel Riley、Peter A. R. Ade、Viktor V. Hristov、Chao Lin Kuo、Alexandra S. Rahlin、Jamil Shariff、Peter Mason、Daniel O'Dea、Mark Halpern、Marzieh Farhang、Kyle R. Helson、C. Barth Netterfield、Carole Tucker、Rebecca Tucker、Marcus C. Runyan、Gene Hilton、Juan Diego Soler、Jeffrey P. Filippini、Thomas E. Montroy、Richard Bihary、H. Cynthia Chiang、William C. Jones、Carrie J. MacTavish、J. Richard Bond、Sunil Golwala、John E. Ruhl、Laura Fissel、Carl D. Reintsema、Brendan P. Crill
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Warren Holmes,Anthony Turner,Steve Benton,Matthew A. Schenker,Matthew Hasselfield,Natalie Gandilo,Kent D. Irwin,Joseph A. Bonetti,Olivier Dore,James J. Bock,Jon E. Gudmundsson,Amy Trangsrud,Sean A. Bryan,Mandana Amiri,Carlo R. Contaldi,Tracy Morford,Daniel Riley,Peter A. R. Ade,Viktor V. Hristov,Chao Lin Kuo,Alexandra S. Rahlin,Jamil Shariff,Peter Mason,Daniel O'Dea,Mark Halpern,Marzieh Farhang,Kyle R. Helson,C. Barth Netterfield,Carole Tucker,Rebecca Tucker,Marcus C. Runyan,Gene Hilton,Juan Diego Soler,Jeffrey P. Filippini,Thomas E. Montroy,Richard Bihary,H. Cynthia Chiang,William C. Jones,Carrie J. MacTavish,J. Richard Bond,Sunil Golwala,John E. Ruhl,Laura Fissel,Carl D. Reintsema,Brendan P. Crill.Modeling and characterization of the SPIDER half-wave plate[EB/OL].(2010-06-19)[2025-05-28].https://arxiv.org/abs/1006.3874.点此复制
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