We describe the design and expected performance of Clover, a new instrument designed to measure the B-mode polarization of the cosmic microwave background. The proposed instru- ment will comprise three independent telescopes operating at 90, 150 and 220 GHz and is planned to be sited at Dome C, Antarctica. Each telescope will feed a focal plane array of 128 background-limited detectors and will measure polarized signals over angular multipoles 20<1000. The unique design of the telescope and careful control of systematics should enable the B-mode signature of gravitational waves to be measured to a lensing-confusion-limited tensor-to-scalar ratio r ∼ 0.005.
CLOVER - A new instrument for measuring the B-mode polarization of the CMB / Taylor, A. C.; Challinor, A.; Goldie, D.; Grainge, K.; Jones, M. E.; Lasenby, A. N.; Withington, S.; Yassin, G.; Gear, W. K.; Piccirillo, L.; Ade, P.; Mauskopf, P. D.; Maffei, B.; Pisano, G.. - (2004), pp. astro-ph/0407148. (Intervento presentato al convegno Rencontres de Moriond - Exploring the Universe - Contents and Structures of the Universe tenutosi a La Thuile, Italy).
CLOVER - A new instrument for measuring the B-mode polarization of the CMB
Pisano, G.
2004
Abstract
We describe the design and expected performance of Clover, a new instrument designed to measure the B-mode polarization of the cosmic microwave background. The proposed instru- ment will comprise three independent telescopes operating at 90, 150 and 220 GHz and is planned to be sited at Dome C, Antarctica. Each telescope will feed a focal plane array of 128 background-limited detectors and will measure polarized signals over angular multipoles 20<1000. The unique design of the telescope and careful control of systematics should enable the B-mode signature of gravitational waves to be measured to a lensing-confusion-limited tensor-to-scalar ratio r ∼ 0.005.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
