Method for Rapid Performance Validation of Large TES Bolometer Array for POLARBEAR-2A Using a Coherent Millimeter-Wave Source

Yuuko Segawa,Haruaki Hirose,Daisuke Kaneko,Masaya Hasegawa,Shunsuke Adachi,Peter Ade,Mario Andres Osvaldo Aguilar Faundez,Yoshiki Akiba,Kam Arnold,Jessica Avva,Carlo Baccigalupi,Darcy Barron,Dominic Beck,Shawn Beckman,Federico Bianchini,David Boettger,Julian Borrill,Julien Carron,Scott Chapman,Kolen Cheung, Yuji Chinone,Kevin Crowley,Ari Cukierman,Tijmen de Haan,Matt Dobbs,Rolando Dunner,Hamza El Bouhargani,Tucker Elleflot,Josquin Errard,Giulio Fabbian,Stephen Feeney,Chang Feng, Takuro Fujino,Nicholas Galitzki,Neil Goeckner-Wald,John Groh,Grantland Hall,Nils Halverson, Takaho Hamada,Masashi Hazumi,Charles Hill,Logan Howe,Yuki Inoue,Jennifer Ito,Greg Jaehnig,Oliver Jeong,Nobuhiko Katayama,Brian Keating,Reijo Keskitalo,Shuhei Kikuchi,Theodore Kisner,Nicoletta Krachmalnicoff,Akito Kusaka,Adrian T. Lee,David Leon,Eric Linder,Lindsay Ng Lowry,Aashrita Mangu,Frederick Matsuda,Yuto Minami, Josh Montgomery,Martin Navaroli,Haruki Nishino,Julien Peloton, Anh Thi Phuong Pham,Davide Poletti,Giuseppe Puglisi,Christopher Raum,Christian L. Reichardt,Colin Ross,Maximiliano Silva-Feaver,Praween Siritanasak,Radek Stompor,Aritoki Suzuki,Osamu Tajima,Satoru Takakura,Sayuri Takatori,Daiki Tanabe,Grant P. Teply,Calvin Tsai,Clara Verges,Ben Westbrook,Yuyang Zhou

PROCEEDINGS OF THE 14TH ASIA-PACIFIC PHYSICS CONFERENCE（2021）

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摘要

POLARBEAR-2A is the first receiver for the Simons Array cosmic micmwave background polarization experiment. POLARBEAR-2A has transition-edge sensor bolometers on the focal plane. Signals from bolometers arc multiplexed and read out by a single SQUID. The receiver was deployed in late 2018 in Atacama, Chile, and operation started in 2019, where rapid confirmation of correspondence between bolometers and multiplexed readout channels was important as an initial step of performance validation. For this purpose, we devised a method using a coherent source that allows us to identify the frequency band and polarization sensitivity angle for each readout channel without detailed bolometer tuning.

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