Clover is a type of gamma ray detector which has been designed to measure the B-mode polarization of the Cosmic Microwave Background down to a sensitivity limited by the foreground contamination due to lensing, allowing the detection of primordial gravitational waves in the Universe. It is named for the four-leaf clover arrangement of the detectors. This article is about electromagnetic radiation. ... In electrodynamics, polarization (also spelled polarisation) is a property of waves, such as light and other electromagnetic radiation. ... WMAP image of the CMB anisotropy,Cosmic microwave background radiation(June 2003) The cosmic microwave background radiation (CMB) is a form of electromagnetic radiation that fills the whole of the universe. ... This article is in need of attention from an expert on the subject. ... In physics, gravitational radiation is energy that is transmitted through waves in the gravitational field of space-time, according to Albert Einsteins theory of general relativity: The Einstein field equations imply that any accelerated mass radiates energy this way, in the same way as the Maxwell equations that any...

A clover array is a group of clover detectors.

The Clover Project will consist of three independent telescopes operating at 95, 150 and 225 GHz sited near the CBI site in the Atacama Desert, Chile, each of which will implement large format focal-plane arrays of bolometric detectors. The hertz (symbol: Hz) is the SI unit of frequency. ... The Cosmic Background Imager (or CBI) is a 13-element interferometer perched at an elevation of 5000 metres on the Chajnantor plateau in the Chilean Andes. ... Atacama The Atacama desert of Chile and Peru is a virtually rainless plateau made up of salt basins (salares), sand, and lava flows, extending from the Andes mountains to the Pacific Ocean. ...

The Clover Project was approved for funding in 2005 and it is hoped that the full telescope will be operational by 2008. The project is jointly run by Cardiff University, Oxford University and the Cavendish Astrophysics Group. Cardiff University (Welsh: Prifysgol Caerdydd) is a university in Cardiff. ... The University of Oxford, located in the city of Oxford in England, is the oldest university in the English-speaking world. ... The Cavendish Astrophysics Group (formerly the Radio Astronomy Group) is based at the Cavendish Laboratory at Cambridge University. ...

External links

• Segmented germanium detectors
• Clover Project page at Cardiff University
• Clover array description