Superconducting quantum detectors

Research group

Research theme

Sub department

About

Related research groups

Report on the second prototype of non-imaging focusing heliostat and its application in food processing

Solar Energy Elsevier 79:3 (2005) 280-289

Authors:

YT Chen, KK Chong, CS Lim, BH Lim, BK Tan, YF Lu
More details from the publisher

Clover experiment: The receiver block

EAS PUBLICATIONS 14 (2005) 245-250

Authors:

G Pisano, PAR Ade, C Calderon, AD Challinor, P De Bernardis, L Dunlop, WK Gear, Y Giraud-Heraud, DJ Goldie, KJB Grainge, KG Isaak, B Johnson, ME Jones, AN Lasenby, B Maffei, PD Mauskopf, SJ Melhuish, A Orlando, L Piccirillo, AC Taylor, S Withington, G Yassin

Abstract:

The ClOVER instrument (described elsewhere in this volume) is being built to measure the B-mode polarisation of the Cosmic Microwave Background. Each of the 256 pixels is made up a pseudo-correlation receiver that can be realised using either waveguide or microstrip technology. In this work we present a design study for a possible waveguide-based solution. Each of the individual components has been optimised using electromagnetic finite-element modelling software (HFSS).
More details from the publisher
More details

Clover: The CMB polarization observer

EAS PUBLICATIONS 14 (2005) 251-256

Authors:

B Maffei, PAR Ade, C Calderon, AD Challinor, P De Bernardis, L Dunlop, WK Gear, Y Giraud-Heraud, DJ Goldie, KJB Grainge, KG Isaak, B Johnson, ME Jones, AN Lasenby, PD Mauskopf, SJ Melhuish, A Orlando, L Piccirillo, G Pisano, AC Taylor, S Withington, G Yassin

Abstract:

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.
More details from the publisher
More details

A 700-GHz SIS antipodal finline mixer fed by a Pickett-Potter horn-reflector antenna

IEEE Transactions on Microwave Theory and Techniques 52 (2004) 2352-2360

Authors:

G Yassin, P. Kittara, S. Withington
More details from the publisher
More details

CLOVER - A new instrument for measuring the B-mode polarization of the CMB

ArXiv astro-ph/0407148 (2004)

Authors:

AC Taylor, A Challinor, D Goldie, K Grainge, ME Jones, AN Lasenby, S Withington, G Yassin, WK Gear, L Piccirillo, P Ade, PD Mauskopf, B Maffei, G Pisano

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 instrument 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 < l < 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.
More details
Details from ArXiV