Polarization calibration of the BICEP3 CMB polarimeter at the South Pole

J. Cornelison; P. A. R. Ade; Z. Ahmed; M. Amiri; D. Barkats; R. Basu Thakur; C. Bischoff; J. J. Bock; H. Boenish; E. Bullock; V. Buza; J. R. Cheshire IV; J. Connors; M. Crumrine; A. J. Cukierman; E. V. Denison; M. Dierickx; L. Duband; M. Eiben; S. Fatigoni; J. P. Filippini; S. Fliescher; N. Goeckner-Wald; D. C. Goldfinger; J. A. Grayson; P. Grimes; G. Hall; G. Halal; M. Halpern; S. A. Harrison; S. Henderson; S. Hildebrandt; G. C. Hilton; J. Hubmayr; H. Hui; K. D. Irwin; J. Kang; K. Karkare; E. Karpel; S. Kefeli; S. A. Kernasovkiy; J. M. Kovac; C. L. Kuo; K. Lau; E. Leitch; K. G. Megerian; L. Minutolo; L. Moncelsi; Y. Nakato; T. Namikawa; H. T. Nguyen; R. O'Brient; R. W. Ogburn IV; S. Palladino; N. Precup; T. Prouve; C. Pryke; B. Racine; C. D. Reintsema; S. Richter; A. Schillaci; B. Schmitt; R. Schwarz; C. D. Sheehy; A. Soliman; T. St. Germaine; B. Steinbach; R. V. Sudiwala; G. P. Teply; K. L. Thompson; J. E. Tolan; C. Tucker; A. D. Turner; C. Umilta; A. G. Vieregg; A. Wandui; A. C. Weber; D. V. Wiebe; J. Willmert; C. L. Wong; W. L. K. Wu; E. Yang; K. W. Yoon; E. Young; C. Yu; L. Zeng; C. Zhang; S. Zhang

doi:10.1117/12.2562905

13 December 2020 Polarization calibration of the BICEP3 CMB polarimeter at the South Pole

J. Cornelison, P. A. R. Ade, Z. Ahmed, M. Amiri, D. Barkats, R. Basu Thakur, C. Bischoff, J. J. Bock, H. Boenish, E. Bullock, V. Buza, J. R. Cheshire IV, J. Connors, M. Crumrine, A. J. Cukierman, E. V. Denison, M. Dierickx, L. Duband, M. Eiben, S. Fatigoni, J. P. Filippini, S. Fliescher, N. Goeckner-Wald, D. C. Goldfinger, J. A. Grayson, P. Grimes, G. Hall, G. Halal, M. Halpern, S. A. Harrison, S. Henderson, S. Hildebrandt, G. C. Hilton, J. Hubmayr, H. Hui, K. D. Irwin, J. Kang, K. Karkare, E. Karpel, S. Kefeli, S. A. Kernasovkiy, J. M. Kovac, C. L. Kuo, K. Lau, E. Leitch, K. G. Megerian, L. Minutolo, L. Moncelsi, Y. Nakato, T. Namikawa, H. T. Nguyen, R. O'Brient, R. W. Ogburn IV, S. Palladino, N. Precup, T. Prouve, C. Pryke, B. Racine, C. D. Reintsema, S. Richter, A. Schillaci, B. Schmitt, R. Schwarz, C. D. Sheehy, A. Soliman, T. St. Germaine, B. Steinbach, R. V. Sudiwala, G. P. Teply, K. L. Thompson, J. E. Tolan, C. Tucker, A. D. Turner, C. Umilta, A. G. Vieregg, A. Wandui, A. C. Weber, D. V. Wiebe, J. Willmert, C. L. Wong, W. L. K. Wu, E. Yang, K. W. Yoon, E. Young, C. Yu, L. Zeng, C. Zhang, S. Zhang

Author Affiliations +

Proceedings Volume 11453, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy X; 1145327 (2020) https://doi.org/10.1117/12.2562905
Event: SPIE Astronomical Telescopes + Instrumentation, 2020, Online Only

Conference Poster

Abstract

The BICEP3 CMB Polarimeter is a small-aperture refracting telescope located at the South Pole and is specifically designed to search for the possible signature of inflationary gravitational waves in the Cosmic Microwave Background (CMB). The experiment measures polarization on the sky by differencing the signal of co-located, orthogonally polarized antennas coupled to Transition Edge Sensor (TES) detectors. We present precise measurements of the absolute polarization response angles and polarization efficiencies for nearly all of BICEP3's ~800 functioning polarization-sensitive detector pairs from calibration data taken in January 2018. Using a Rotating Polarized Source (RPS), we mapped polarization response for each detector over a full 360 degrees of source rotation and at multiple telescope boresight rotations from which per-pair polarization properties were estimated. In future work, these results will be used to constrain signals predicted by exotic physical models such as Cosmic Birefringence.

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J. Cornelison, P. A. R. Ade, Z. Ahmed, M. Amiri, D. Barkats, R. Basu Thakur, C. Bischoff, J. J. Bock, H. Boenish, E. Bullock, V. Buza, J. R. Cheshire IV, J. Connors, M. Crumrine, A. J. Cukierman, E. V. Denison, M. Dierickx, L. Duband, M. Eiben, S. Fatigoni, J. P. Filippini, S. Fliescher, N. Goeckner-Wald, D. C. Goldfinger, J. A. Grayson, P. Grimes, G. Hall, G. Halal, M. Halpern, S. A. Harrison, S. Henderson, S. Hildebrandt, G. C. Hilton, J. Hubmayr, H. Hui, K. D. Irwin, J. Kang, K. Karkare, E. Karpel, S. Kefeli, S. A. Kernasovkiy, J. M. Kovac, C. L. Kuo, K. Lau, E. Leitch, K. G. Megerian, L. Minutolo, L. Moncelsi, Y. Nakato, T. Namikawa, H. T. Nguyen, R. O'Brient, R. W. Ogburn IV, S. Palladino, N. Precup, T. Prouve, C. Pryke, B. Racine, C. D. Reintsema, S. Richter, A. Schillaci, B. Schmitt, R. Schwarz, C. D. Sheehy, A. Soliman, T. St. Germaine, B. Steinbach, R. V. Sudiwala, G. P. Teply, K. L. Thompson, J. E. Tolan, C. Tucker, A. D. Turner, C. Umilta, A. G. Vieregg, A. Wandui, A. C. Weber, D. V. Wiebe, J. Willmert, C. L. Wong, W. L. K. Wu, E. Yang, K. W. Yoon, E. Young, C. Yu, L. Zeng, C. Zhang, and S. Zhang "Polarization calibration of the BICEP3 CMB polarimeter at the South Pole", Proc. SPIE 11453, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy X, 1145327 (13 December 2020); https://doi.org/10.1117/12.2562905

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