{"paper":{"title":"Optical Characterization of the Keck Array Polarimeter at the South Pole","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.IM","authors_text":"A. D. Turner, A. G. Vieregg, C. Bischoff, C. B. Netterfield, C. D. Dowell, C. L. Kuo, C. L. Wong, C. Pryke, C. Sheehy, E. Leitch, G. Hilton, G. Teply, H. T. Nguyen, J. A. Bonetti, J. A. Brevik, J. E. Ruhl, J. J. Bock, J. M. Kovac, J. P. Filippini, J. Tolan, K. Irwin, K. J. Bradford, L. Duband, M. Halpern, M. Lueker, M. Runyan, M. S. Gordon, P. A. R. Ade, P. Wilson, R. Aikin, R. O'Brient, R. Schwarz, R. Sudiwala, R. W. Ogburn IV, S. Fliescher, S. Kernasovskiy, S. R. Golwala, T. Montroy, V. V. Hristov, Z. Staniszewski","submitted_at":"2012-08-03T20:59:00Z","abstract_excerpt":"The Keck Array (SPUD) is a set of microwave polarimeters that observes from the South Pole at degree angular scales in search of a signature of Inflation imprinted as B-mode polarization in the Cosmic Microwave Background (CMB). The first three Keck Array receivers were deployed during the 2010-2011 Austral summer, followed by two new receivers in the 2011-2012 summer season, completing the full five-receiver array. All five receivers are currently observing at 150 GHz. The Keck Array employs the field-proven BICEP/BICEP2 strategy of using small, cold, on-axis refractive optics, providing exce"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1208.0844","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}