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The POLARBEAR cosmic microwave background polarization experiment

  • Author(s): Barron, D;
  • Ade, P;
  • Anthony, A;
  • Arnold, K;
  • Boettger, D;
  • Borrill, J;
  • Chapman, S;
  • Chinone, Y;
  • Dobbs, M;
  • Edwards, J;
  • Errard, J;
  • Fabbian, G;
  • Flanigan, D;
  • Fuller, G;
  • Ghribi, A;
  • Grainger, W;
  • Halverson, N;
  • Hasegawa, M;
  • Hattori, K;
  • Hazumi, M;
  • Holzapfel, W;
  • Howard, J;
  • Hyland, P;
  • Jaehnig, G;
  • Jaffe, A;
  • Keating, B;
  • Kermish, Z;
  • Keskitalo, R;
  • Kisner, T;
  • Lee, AT;
  • Le Jeune, M;
  • Linder, E;
  • Lungu, M;
  • Matsuda, F;
  • Matsumura, T;
  • Meng, X;
  • Miller, NJ;
  • Morii, H;
  • Moyerman, S;
  • Myers, M;
  • Nishino, H;
  • Paar, H;
  • Peloton, J;
  • Quealy, E;
  • Rebeiz, G;
  • Reichardt, CL;
  • Richards, PL;
  • Ross, C;
  • Shimizu, A;
  • Shimmin, C;
  • Shimon, M;
  • Sholl, M;
  • Siritanasak, P;
  • Spieler, H;
  • Stebor, N;
  • Steinbach, B;
  • Stompor, R;
  • Suzuki, A;
  • Tomaru, T;
  • Tucker, C;
  • Yadav, A;
  • Zahn, O
  • et al.
Abstract

The polarbear cosmic microwave background (CMB) polarization experiment has been observing since early 2012 from its 5,200 m site in the Atacama Desert in Northern Chile. polarbear's measurements will characterize the expected CMB polarization due to gravitational lensing by large scale structure, and search for the possible B-mode polarization signature of inflationary gravitational waves. polarbear's 250 mK focal plane detector array consists of 1,274 polarization-sensitive antenna-coupled bolometers, each with an associated lithographed band-defining filter and contacting dielectric lenslet, an architecture unique in current CMB experiments. The status of the polarbear instrument, its focal plane, and the analysis of its measurements are presented. © 2014 Springer Science+Business Media New York.

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