Orateur
Junna Sugiyama
(the University of Tokyo)
Description
Simons Observatory (SO) is the largest ground-based CMB experiment in history. SO is developing Small Aperture Telescopes (SATs) to detect the primordial B-mode signal. The cryogenic half-wave plate (CHWP) is an optical device for SAT which decreases systematic errors in the polarimetry. CHWP modulates polarized signals separating from unpolarized signals; the polarization modulation reduces atmospheric $1/f$ noise and other uncertainties. The CHWP designed for 225/280 GHz band was fabricated and evaluated its performance. Now the CHWP was integrated to the SAT detector. I will report the summary of the CHWP lab tests and the integration test in LBNL.
Auteur principal
Junna Sugiyama
(the University of Tokyo)
Co-auteurs
M.
Kyohei Yamada
(the University of Tokyo)
Dr
Yuki Sakurai
(Okayama University)
M.
Bryce Bixler
(UC San Diego)
Prof.
Akito Kusaka
(the University of Tokyo)
