Year: 2010
Type: preprint
Abstract: We describe the cryostat and supporting electronics for the EBEX experiment. EBEX is a balloon-borne polarimeter designed to measure the B-mode polarization of the cosmic microwave background radiation. The instrument includes a 1.5 meter Gregorian-type telescope and 1432 bolometric transition edge sensor detectors operating at 0.3 K. Electronics for monitoring temperatures and controlling cryostat refrigerators is read out over CANbus. A timing system ensures the data from all subsystems is accurately synchronized. EBEX completed an engineering test flight in June 2009 during which the cryogenics and supporting electronics performed according to predictions. The temperatures of the cryostat were stable, and an analysis of a subset of the data finds no scan synchronous signal in the cryostat temperatures. Preparations are underway for an Antarctic flight.
Source: arXiv (Cornell University)
Authors: Sagiv, Ilan, Aboobaker, Asad M., Bao, Chaoyun, Hanany, Shaul, Jones, Terry, Klein, Jeffrey, Milligan, Michael, Polsgrove, Daniel E., Raach, Kate, Zilic, Kyle, Korotkov, Andrei, Tucker, Gregory S., Vinukurov, Yuri, Matsumura, Tomotake, Ade, Peter, Grainger, Will, Pascale, Enzo, Chapman, Daniel, Didier, Joy, Hillbrand, Seth, Reichborn-Kjennerud, Britt, Limon, Michele, Miller, Amber, Jaffe, Andrew, Yadav, Amit, Zaldarriaga, Matias, Ponthieu, Nicolas, Tristram, Matthieu, Borrill, Julian, Cantalupo, Christopher, Kisner, Ted, Aubin, Francois, Dobbs, Matt, MacDermid, Kevin, Hilton, Gene, Hubmayr, Johhannes, Irwin, Kent, Reintsema, Carl, Baccigalupi, Carlo, Leach, Sam, Johnson, Bradley, Lee, Adrian, Tran, Huan, Levinson, Lorne
Institutions: University of Minnesota, Brown University, California Institute of Technology, Cardiff University, Columbia University, Imperial College London, Institute for Advanced Study, Université Paris-Sud, Institut d'Astrophysique Spatiale, Centre National de la Recherche Scientifique, Laboratoire de l'Accélérateur Linéaire, Lawrence Berkeley National Laboratory, McGill University, National Institute of Standards and Technology, Scuola Internazionale Superiore di Studi Avanzati, University of California, Berkeley, Weizmann Institute of Science
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2949899166