{"paper":{"title":"The ALMA Band 9 receiver - Design, construction, characterization, and first light","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.IM","authors_text":"A. Koops, A.M. Baryshev, B.D. Jackson, C.F.J. Lodewijk, C. Pieters, E.F. van Dishoeck, F.P. Mena, G.J. Gerlofsma, H.H.A. Schaeffer, H. Jager, J. Adema, J. Barkhof, J. Koops van het Jagt, K. Keizer, K. Wielinga, L.H.R. de Haan-Stijkel, M.E. Bekema, M. Kroug, M.R. Hogerheijde, M. van den Bemt, M.W.M. de Graauw, R. Hesper, T.A. van Kempen, T.M. Klapwijk, T. Zijlstra, W. Boland, W. Wild","submitted_at":"2015-03-06T15:21:37Z","abstract_excerpt":"We describe the design, construction, and characterization of the Band 9 heterodyne receivers (600-720 GHz) for the Atacama Large Millimeter / submillimeter Array (ALMA). The ALMA Band 9 receiver units (\"cartridges\"), which are installed in the telescope's front end, have been designed to detect and down-convert two orthogonal linear polarization components of the light collected by the ALMA antennas. The light entering the front end is refocused with a compact arrangement of mirrors, which is fully contained within the cartridge. The arrangement contains a grid to separate the polarizations a"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1503.01988","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"}