EBEX

1
EBEX

• Will Grainger
• Workshop on future ground-based CMB experiments
• Cambridge
• July 2009

2
Collaboration
Michele Limon Amber Miller Britt Reichborn-
Kjennerud IAS-Orsay Nicolas Ponthieu Julien
Grain IAS-Princeton Matias Zaldarriaga Amit
Yadav Cardiff Peter Ade Will Grainger Enzo
Pascale Imperial College Andrew Jaffe
LAL-Orsay Matthieu Tristram McGill
University Francoie Aubin Matt Dobbs Kevin
MacDermid Graeme Smecher NIST Gene Hilton Kent
Irwin Carl Reintsema SISSA-Trieste Carlo
Baccigalupi Sam Leach University of
California/Berkeley Brad Johnson Adrian Lee
Xiaofan Meng Huan Tran University of
Minnesota/Twin Cities Asad Aboobaker Chaoyun
Bao Shaul Hanany Hannes Hubmayr Terry Jones Jeff
Klein Michael Milligan Dan Polsgrove Ilan
Sagiv Kate Raach Kyle Zilic Weizmann
Institute of Science Lorne Levinson
APC Paris Radek Stompor Berkeley Lab Julian
Borrill Christopher Cantalupo Ted Kisner Federico
Stivoli Brown University Andrei Korotkov Greg
Tucker Yuri Vinokurov CalTech Tomotake
Matsumura Columbia University Daniel Chapman Joy
Didier Seth Hillbrand
Observational Cosmology - University of
Minnesota
3
EBEX E and B Experiment

• Balloon based, TES detectors
• SMB HWP for modulation. Frequency modulation for
  mux.
• NA test/engineering flight 13h duration.

• LDB flight 14 days, l 20-1500

4
Timescales and commitment

• NA test flight happened
• 13 hour flight, June 10th 2009.
• Data analysis underway.
• LDB flight
• Fully funded for build and flight
• Flight planned for Dec 2010.
• Planning for a flight gt14 days.
• UK is a 5 contributor
• AR coating for optical components, HWP, filters.
• Flight support.
• Data analysis.

5
Predictions for LDB
If r 0.1, S/Ngt5 r lt 0.02 at 2s (excluding
systematic and foreground subtraction
uncertainties)