BICEP array cryostat and mount design

• Published in: Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy IX
• Main Authors: Crumrine, Michael, Ade, P.A. R., Ahmed, Z., Aikin, R.W., Alexander, K.D., Barkats, D., Benton, S.J., Bischoff, C.A., Bock, J.J., Bowens-Rubin, R., Brevik, J.A., Buder, I., Bullock, E., Buza, V., Connors, J., Cornelison, J., Crill, B.P., Dierickx, M., Duband, L., Dvorkin, C., Filippini, J.P., Fliescher, S., Grayson, J.A., Hall, G., Halpern, M., Harrison, S.A., Hildebrandt, S.R., Hilton, G.C., Hui, H., Irwin, K.D., Kang, J.H., Karkare, K.S., Karpel, E., Kaufman, J.P., Keating, B.G., Kefeli, S., Kernasovskiy, S.A., Kovac, J.M., Kuo, C.L., LAU, K., Larsen, N.A., Leitch, E.M., Lueker, M.V., Megerian, K.G., Moncelsi, L., Namikawa, T., Nguyen, H.T., O'Brient, R., Ogburn, R.W., Palladino, S.
• Other Authors: Commissariat à l'énergie atomique et aux énergies alternatives (CEA)
• Format: Conference Object
• Language: English
• Published: HAL CCSD 2018
• Subjects: inflation; synchrotron; detector: performance; gravitational radiation: primordial; cosmological model; BICEP; cosmic background radiation: polarization; detector: cryogenics; Cosmology; Keck Array; Polarization; Gravitational Waves; Cosmic Microwave Background; galaxy; [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det]; [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]; Austin; South Pole; South pole
• Online Access: https://hal.archives-ouvertes.fr/hal-01851187; https://doi.org/10.1117/12.2312829

International audience 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.