1. The EBEX Cryostat and Supporting Electronics
- Author
-
ILAN SAGIV, ASAD M. ABOOBAKER, CHAOYUN BAO, SHAUL HANANY, TERRY JONES, JEFFREY KLEIN, MICHAEL MILLIGAN, DANIEL E. POLSGROVE, KATE RAACH, KYLE ZILIC, ANDREI KOROTKOV, GREGORY S. TUCKER, YURY VINOKUROV, TOMOTAKE MATSUMURA, PETER ADE, WILL GRAINGER, ENZO PASCALE, DANIEL CHAPMAN, JOY DIDIER, SETH HILLBRAND, BRITT REICHBORN-KJENNERUD, MICHELE LIMON, AMBER MILLER, ANDREW JAFFE, AMIT YADAV, MATIAS ZALDARRIAGA, NICOLAS PONTHIEU, MATTHIEU TRISTRAM, JULIAN BORRILL, CHRISTOPHER CANTALUPO, TED KISNER, FRANÇOIS AUBIN, MATT DOBBS, KEVIN MACDERMID, GENE HILTON, JOHANNES HUBMAYR, KENT IRWIN, CARL REINTSEMA, CARLO BACCIGALUPI, SAM LEACH, BRADLEY JOHNSON, ADRIAN LEE, HUAN TRAN, and LORNE LEVINSON
- Subjects
Cryostat ,Physics ,Cosmology and Nongalactic Astrophysics (astro-ph.CO) ,business.industry ,Computer file ,Cosmic microwave background ,Electrical engineering ,FOS: Physical sciences ,Astrophysics ,Electronics ,business ,Astrophysics - Instrumentation and Methods for Astrophysics ,Instrumentation and Methods for Astrophysics (astro-ph.IM) ,Astrophysics - Cosmology and Nongalactic Astrophysics - 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., Comment: 11 pages, 6 figures, Proceedings of the 12th Marcel Grossman Conference
- Published
- 2010
- Full Text
- View/download PDF