Clover: The CMB polarization observer

• Main Authors: Maffei, B, Ade, P, Calderon, C, Challinor, A, De Bernardis, P, Dunlop, L, Gear, W, Giraud-Heraud, Y, Goldie, D, Grainge, K, Isaak, K, Johnson, B, Jones, M, Lasenby, A, Mauskopf, P, Melhuish, S, Orlando, A, Piccirillo, L, Pisano, G, Taylor, A, Withington, S, Yassin, G
• Format: Conference Object
• Language: unknown
• Published: 2016
• Subjects: Antarc*; Antarctica
• Online Access: https://doi.org/10.1051/eas:2005039; https://ora.ox.ac.uk/objects/uuid:88a502c1-6e47-4564-818d-28b08a4a00ca

We present a new, fully-funded ground-based instrument designed to measure the B-mode polarization of the Cosmic Microwave Background (CMB). The concept is based on three independent subsystems operating at 90, 150 and 220 GHz, each comprising a telescope and a focal plane of horn-coupled background-limited bolometers. This highly-sensitive experiment, planned to be based at Dome C station in Antarctica, is optimised to produce very low systematic effects. It will allow the detection of the CMB polarization over angular multipoles 20 < l < 1000 accurately enough to measure the B-mode signature from gravitational waves to a lensing-confusion-limited tensor-to-scalar ratio r similar to 0.005.