Press releases April 2007

Closing the gap: descent of the last LHC magnet

Geneva, 26 April 2007. A ceremony was held at CERN1 today to mark the end of a crucial phase of installation of the Large Hadron Collider (LHC). A large dipole magnet was symbolically lowered into the tunnel at 12:00. This completes the basic installation of the more than 1700 magnets that make up the collider, which measures 27 km in circumference and is scheduled to be commissioned at the end of 2007.

CERN is guest of honour at international inventions exhibition

Geneva, 18 April 2007. The world’s largest particle physics laboratory, CERN1, is guest of honour at the annual Salon International des Inventions in Geneva from 18-22 April this year. Better know for its advances in understanding the Universe, CERN is also a hotbed of innovation, giving rise to new technologies in areas ranging from medicine to IT. The World Wide Web, invented at CERN in 1990, is the best known CERN technology, but there are many more that the public will be able to explore on the CERN stand.

For the first time the LHC reaches temperatures colder than outer space

Geneva, 10 April 2007. The first sector of CERN1's Large Hadron Collider (LHC) to be cooled down has reached a temperature of 1.9 K (–271°C), colder than deep outer space! Although just one-eighth of the LHC ring, this sector is the world’s largest superconducting installation. The entire 27–kilometre LHC ring needs to be cooled down to this temperature in order for the superconducting magnets that guide and focus the proton beams to remain in a superconductive state.

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