BICEP Array: a multi-frequency degree-scale CMB polarimeter

BICEP Array: a multi-frequency degree-scale CMB polarimeter
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BICEP 阵列:多频度尺度 CMB 旋光计

DOI:
10.1117/12.2311725
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发表时间:
2018
期刊:
SPIE
影响因子:
--
通讯作者:
Bowens-Rubin, Rachel
Bowens-Rubin, Rachel
中科院分区:
--
文献类型:
--
作者:
Hui, Howard;Ade, P. A.;Ahmed, Zeeshan;Aikin, Randol;Alexander, Kate D.;Barkats, Denis;Benton, Steve J.;Bischoff, Colin A.;Bock, James J.;Bowens-Rubin, Rachel

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Bicep Array is the newest multi-frequency instrument in the Bicep/Keck Array program. It is comprised of four 550mm 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 ⪅ σ(r) ⪅ 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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影响因子: --
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