arxiv: 1210.7877 · v1 · pith:VFY7TAMJnew · submitted 2012-10-30 · 🌌 astro-ph.IM · astro-ph.CO

The bolometric focal plane array of the Polarbear CMB experiment

K. Arnold (1) , P.A.R. Ade (2) , A.E. Anthony (3) , D. Barron (4) D. Boettger (4) , J. Borrill (5 , 6) , S. Chapman (7) Y. Chinone (11) , M.A. Dobbs (8)

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J. Errard (10) G. Fabbian (10) D. Flanigan (1) G. Fuller (4) A. Ghribi (1) W. Grainger (13) N. Halverson (3) M. Hasegawa (11) K. Hattori (11) M. Hazumi (11) W.L. Holzapfel (1) J. Howard (1) P. Hyland (9) A. Jaffe (12) B. Keating (4) Z. Kermish (1) T. Kisner (5) M. Le Jeune (10) A.T. Lee (1 12) E. Linder (13) M. Lungu (1) F. Matsuda (4) T. Matsumura (11) N.J. Miller (4) X. Meng (1) H. Morii (11) S. Moyerman (4) M.J. Myers (1) H. Nishino (1) H. Paar (4) E. Quealy (1) C. Reichardt (1) P.L. Richards (1) C. Ross (7) A. Shimizu (11) C. Shimmin (1) M. Shimon (4) M. Sholl (12) P. Siritanasak (4) H. Spieler (12) N. Stebor (4) B. Steinbach (1) R. Stompor (10) A. Suzuki (1) T. Tomaru (11) C. Tucker (2) O. Zahn (1 12) ((1) Department of Physics University of California (2) School of Physics Astronomy University of Cardiff (3) Department of Astrophysical Planetary Sciences University of Colorado (4) Center for Astrophysics Space Sciences San Diego (5) Computational Cosmology Center Lawrence Berkeley National Laboratory (6) Space Sciences Laboratory Berkeley (7) Dalhousie University (8) Physics Department McGill University (9) Physics Department Austin College (10) Laboratoire Astroparticule et Cosmologie (APC) Universite Paris (11) High Energy Accelerator Research Organization (KEK) Tsukuba Ibaraki Japan (12) Department of Physics Imperial College (12) Physics Division (13) Rutherford Appleton Laboratory STFC)

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keywords focalplanearrayb-modedetectorexperimentgravitationalpolarbear

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The Polarbear Cosmic Microwave Background (CMB) polarization experiment is currently observing from the Atacama Desert in Northern Chile. It will characterize the expected B-mode polarization due to gravitational lensing of the CMB, and search for the possible B-mode signature of inflationary gravitational waves. Its 250 mK focal plane detector array consists of 1,274 polarization-sensitive antenna-coupled bolometers, each with an associated lithographed band-defining filter. Each detector's planar antenna structure is coupled to the telescope's optical system through a contacting dielectric lenslet, an architecture unique in current CMB experiments. We present the initial characterization of this focal plane.

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The bolometric focal plane array of the Polarbear CMB experiment

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