The EBEX Balloon Borne Experiment-Optics, Receiver, and Polarimetry
The EBEX Balloon Borne Experiment - Optics, Receiver, and Polarimetry The EBEX Collaboration: Asad M. Aboobaker1, Peter Ade2, Derek Araujo3, Fran¸cois Aubin4, Carlo Baccigalupi5;6, Chaoyun Bao4, Daniel Chapman3, Joy Didier3, Matt Dobbs7;8, Christopher Geach4, Will Grainger9, Shaul Hanany4;∗, Kyle Helson10, Seth Hillbrand3, Johannes Hubmayr11, Andrew Jaffe12, Bradley Johnson3, Terry Jones4, Jeff Klein4, Andrei Korotkov10, Adrian Lee13, Lorne Levinson14, Michele Limon3, Kevin MacDermid7, Tomotake Matsumura4;15, Amber D. Miller3, Michael Milligan4, Kate Raach4, Britt Reichborn-Kjennerud3, Ilan Sagiv14, Giorgio Savini16, Locke Spencer2;17, Carole Tucker2, Gregory S. Tucker10, Benjamin Westbrook11, Karl Young4, Kyle Zilic4 ABSTRACT The E and B Experiment (EBEX) was a long-duration balloon-borne cosmic mi- crowave background polarimeter that flew over Antarctica in 2013. We describe the experiment's optical system, receiver, and polarimetric approach, and report on their in-flight performance. EBEX had three frequency bands centered on 150, 250, and 1Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 2School of Physics and Astronomy, Cardiff University, Cardiff, CF24 3AA, United Kingdom 3Physics Department, Columbia University, New York, NY 10027 4University of Minnesota School of Physics and Astronomy, Minneapolis, MN 55455 5Astrophysics Sector, SISSA, Trieste, 34014, Italy 6INFN, Sezione di Trieste, Via Valerio 2, I-34127 Trieste, Italy 7McGill University, Montreal, Quebec, H3A 2T8, Canada 8Canadian Institute for
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