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In situ Performance of the Low Frequency Arrayfor Advanced ACTPol

Authors :
Li, Yaqiong
Austermann, Jason E.
Beall, James A.
Bruno, Sarah Marie
Choi, Steve K.
Cothard, Nicholas F.
Crowley, Kevin T.
Duff, Shannon M.
Ho, Shuay-Pwu Patty
Golec, Joseph E.
Hilton, Gene C.
Hasselfield, Matthew
Hubmay, Johannes
Koopman, Brian J.
Lungu, Marius
McMahon, Jeff
Niemack, Michael D.
Page, LymanA.
Salatino, Maria
Simon, Sara M.
Staggs, Suzanne T.
Stevens, Jason R.
Ullom, Joel N.
Vavagiakis, Eve M.
Wang, Yuhan
Wollack, Edward J.
Xu, Zhilei
Publication Year :
2021

Abstract

The Advanced Atacama Cosmology Telescope Polarimeter (AdvACT) \cite{thornton} is an upgrade for the Atacama Cosmology Telescope using Transition Edge Sensor (TES) detector arrays to measure cosmic microwave background (CMB) temperature and polarization anisotropies in multiple frequencies. The low frequency (LF) array was deployed early 2020. It consists of 292 TES bolometers observing in two bands centered at 27 GHz and 39 GHz. At these frequencies, it is sensitive to synchrotron radiation from our galaxy as well as to the CMB, and complements the AdvACT arrays operating at 90, 150 and 230 GHz. We present the initial LF array on-site characterization, including the time constant, optical efficiency and array sensitivity.

Details

Database :
arXiv
Publication Type :
Report
Accession number :
edsarx.2101.02658
Document Type :
Working Paper
Full Text :
https://doi.org/10.1109/TASC.2021.3063334