| タイトル | An All Silicon Feedhorn-Coupled Focal Plane for Cosmic Microwave Background Polarimetry |
| 本文（外部サイト） | http://hdl.handle.net/2060/20120016544 |
| 著者（英） | Niemack, M. D.; Carlstrom, J. E.; Parker, L. P.; Benson, B. A.; Newburgh, L. B.; Beall, J. A.; Harrington, N. L.; Hilton, G. C.; Becker, D.; Cho, H. M.; VanLanen, J.; Austermann, J. E.; Chang, C. L.; Hubmayr, J.; Nibarger, J. P.; George, E. M.; Halverson, N. W.; Henning, J. W.; Crites, A. T.; Bleem, L. E.; Li, D.; Essinger-Hileman, T.; Appel, J. W.; Fox, A.; Irwin, K. D. |
| 著者所属（英） | NASA Goddard Space Flight Center |
| 発行日 | 2011-12-01 |
| 言語 | eng |
| 内容記述 | Upcoming experiments aim to produce high fidelity polarization maps of the cosmic microwave background. To achieve the required sensitivity, we are developing monolithic, feedhorn-coupled transition edge sensor polarimeter arrays operating at 150 GHz. We describe this focal plane architecture and the current status of this technology, focusing on single-pixel polarimeters being deployed on the Atacama B-mode Search (ABS) and an 84-pixel demonstration feedhorn array backed by four 10-pixel polarimeter arrays. The feedhorn array exhibits symmetric beams, cross-polar response less than -23 dB and excellent uniformity across the array. Monolithic polarimeter arrays, including arrays of silicon feedhorns, will be used in the Atacama Cosmology Telescope Polarimeter (ACTPol) and the South Pole Telescope Polarimeter (SPTpol) and have been proposed for upcoming balloon-borne instruments. |
| NASA分類 | Astronomy |
| レポートNO | GSFC.JA.7384.2012 |
| 権利 | Copyright, Distribution as joint owner in the copyright |
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