BICEP3 focal plane design and detector performance
H. Hui, P. A. R. Ade, Z. Ahmed, K. D. Alexander, M. Amiri, D. Barkats,, S. J. Benton, C. A. Bischoff, J. J. Bock, H. Boenish, R. Bowens-Rubin, I., Buder, E. Bullock, V. Buza, J. Connors, J. P. Filippini, S. Fliescher, J. A., Grayson, M. Halpern, S. Harrison, G. C. Hilton
TL;DR
BICEP3 is a 95 GHz telescope that has been observing the cosmic microwave background, with a focus on its focal plane design and detector performance, achieving a noise performance of 9.72 μK√s.
Contribution
This paper presents the design and performance metrics of the BICEP3 focal plane and detectors, including spectral response, optical efficiency, and sensitivity improvements.
Findings
Demonstrated 9.72 μK√s noise performance
Detailed the focal plane design and spectral response
Showcased detector optical efficiency and sensitivity
Abstract
BICEP3, the latest telescope in the BICEP/Keck program, started science observations in March 2016. It is a 550mm aperture refractive telescope observing the polarization of the cosmic microwave background at 95 GHz. We show the focal plane design and detector performance, including spectral response, optical efficiency and preliminary sensitivity of the upgraded BICEP3. We demonstrate 9.72K noise performance of the BICEP3 receiver.
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