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The polatron: A millimeter-wave cosmic microwave background polarimeter for the OVRO 5.5 m telescope

Philhour, B. J., Keating, B. G., Ade, Peter A. R. ORCID: https://orcid.org/0000-0002-5127-0401, Bhatia, R. S., Bock, J. J., Church, S. E., Glenn, J., Hinderks, J. R., Hristov, V. V., Jones, W. C., Kamionkowski, M., Kumar, D. E., Lange, A. E., Leong, J. R., Marrone, D. P., Mason, B. S., Mason, P. V., Shuman, M. M. and Sirbi, G. I. 2001. The polatron: A millimeter-wave cosmic microwave background polarimeter for the OVRO 5.5 m telescope. [Online]. arXiv. Available at: http://arxiv.org/abs/astro-ph/0106543

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Abstract

We describe the development of a bolometric receiver designed to measure the arcminute-scale polarization of the cosmic microwave background (CMB). The Polatron will be mounted at the Cassegrain focus of the 5.5 m telescope at the Owens Valley Radio Observatory (OVRO). The receiver will measure both the Q and U Stokes parameters over a 20% pass-band centered near 100 GHz, with the input polarization signal modulated at ~0.6 Hz by a rotating, birefringent, quartz half-wave plate. In six months of observation we plan to observe ~400 2.5 arcminute pixels in a ring about the North Celestial Pole to a precision of ~6 \mu K/pixel in each of Q and U, adequate to unambiguously detect CMB polarization at levels predicted by current models.

Item Type: Website Content
Date Type: Submission
Status: Submitted
Schools: Physics and Astronomy
Subjects: Q Science > QB Astronomy
Publisher: arXiv
Last Modified: 27 Oct 2022 08:19
URI: https://orca.cardiff.ac.uk/id/eprint/61953

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