{"paper":{"title":"SPIDER: a balloon-borne CMB polarimeter for large angular scales","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.IM"],"primary_cat":"astro-ph.CO","authors_text":"A.D. Turner, A.S. Rahlin, A. Trangsrud, B. Burger, B.P. Crill, C.B. Netterfield, C.D. Reintsema, C.J. MacTavish, C.L. Kuo, C.R. Contaldi, C. Tucker, D.T. O'Dea, G. Hilton, H.C. Chiang, J.A. Bonetti, J.A. Shariff, J.D. Soler, J.E. Gudmundsson, J.E. Ruhl, J.J. Bock, J.P. Filippini, J.R. Bond, K.D. Irwin, L.M. Fissel, M. Amiri, M.A. Schenker, M.C. Runyan, M. Farhang, M. Halpern, M. Hasselfield, N.N. Gandilo, O. Dor\\'e, P.A.R. Ade, P.V. Mason, R. Bihary, R.S. Tucker, S.A. Bryan, S.J. Benton, S.R. Golwala, T.A. Morford, T.E. Montroy, V.V. Hristov, W.C. Jones, W. Holmes","submitted_at":"2011-06-10T19:58:34Z","abstract_excerpt":"We describe SPIDER, a balloon-borne instrument to map the polarization of the millimeter-wave sky with degree angular resolution. Spider consists of six monochromatic refracting telescopes, each illuminating a focal plane of large-format antenna-coupled bolometer arrays. A total of 2,624 superconducting transition-edge sensors are distributed among three observing bands centered at 90, 150, and 280 GHz. A cold half-wave plate at the aperture of each telescope modulates the polarization of incoming light to control systematics. Spider's first flight will be a 20-30-day Antarctic balloon campaig"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1106.2158","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"}