Journal
MILLIMETER, SUBMILLIMETER, AND FAR-INFRARED DETECTORS AND INSTRUMENTATION FOR ASTRONOMY IX
Volume 10708, Issue -, Pages -Publisher
SPIE-INT SOC OPTICAL ENGINEERING
DOI: 10.1117/12.2311725
Keywords
Cosmic Microwave Background; Polarization; Instrumentation
Funding
- National Science Foundation [0742818, 0742592, 1044978, 1110087, 1145172, 1145143, 1145248, 1639040, 1638957, 1638978, 1638970, 1726917]
- Keck Foundation
- JPL Research and Technology Development Fund
- NASA [06-ARPA206-0040, 10-SAT10-0017, 12-SAT12-0031, 14-SAT14-0009, 16-SAT16-0002]
- Gordon and Betty Moore Foundation at Caltech
- Canada Foundation for Innovation
- U.S. DoE Office of Science
- Division Of Polar Programs
- Directorate For Geosciences [1110087] Funding Source: National Science Foundation
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BICEP Array is the newest multi-frequency instrument in the Bicep/Keck Array program. It is comprised of four 550 mm aperture refractive telescopes observing the polarization of the cosmic microwave background (CMB) at 30/40, 95, 150 and 220/270 GHz with over 30,000 detectors. We present an overview of the receiver, detailing the optics, thermal, mechanical, and magnetic shielding design. Bicep Array follows Bicep3 's modular focal plane concept, and upgrades to 6 wafer to reduce fabrication with higher detector count per module. The first receiver at 30/40GHz is expected to start observing at the South Pole during the 2019-20 season. By the end of the planned Bicep Array program, we project 0.002 less than or similar to sigma(r) less than or similar to 0.006, assuming current modeling of polarized Galactic foreground and depending on the level of delensing that can be achieved with higher resolution maps from the South Pole Telescope.
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