BICEP Array cryostat and mount design
M. Crumrine, P. A. R. Ade, Z. Ahmed, R. W. Aikin, K. D. Alexander, D., Barkats, S. J. Benton, C. A. Bischof, J. J. Bock, R. Bowens-Rubin, J. A., Brevik, I. Buder, E. Bullock, V. Buza, J. Connors, J. Cornelison, B. P., Crill, M. Dierickx, L. Duband, C. Dvorkin, J. P. Filippini
TL;DR
The paper details the design and performance of the Bicep Array's cryostat and mount systems, which are crucial for observing the CMB polarization at multiple frequencies from the South Pole.
Contribution
It introduces the design improvements of the Bicep Array's cryostat and mount systems for enhanced CMB polarization measurements.
Findings
Successful deployment of the cryostat and mount systems.
Enhanced stability and performance of the instruments.
Capability to observe multiple frequencies simultaneously.
Abstract
Bicep Array is a cosmic microwave background (CMB) polarization experiment that will begin observing at the South Pole in early 2019. This experiment replaces the five Bicep2 style receivers that compose the Keck Array with four larger Bicep3 style receivers observing at six frequencies from 30 to 270GHz. The 95GHz and 150GHz receivers will continue to push the already deep Bicep/Keck CMB maps while the 30/40GHz and 220/270GHz receivers will constrain the synchrotron and galactic dust foregrounds respectively. Here we report on the design and performance of the Bicep Array instruments focusing on the mount and cryostat systems.
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Taxonomy
TopicsRadio Astronomy Observations and Technology · Cosmology and Gravitation Theories · Superconducting and THz Device Technology