Advancing Science and Technology

Fundamental research is CERN’s primary mission, but the Laboratory also plays a vital role in developing the technologies of tomorrow. From materials science to computing, particle physics demands the ultimate in performance, making CERN an important testbed for industry.

The best-known CERN technology is the World Wide Web, invented to allow an ever-increasing number of scientists to share information. For many of us today, life without the Web seems inconceivable. Equally revolutionary is the first “cloud”, the Worldwide LHC Computing Grid, which harnesses the power of computers around the world. It was developed at CERN to process the vast amounts of data collected by the LHC experiments.

Electronic particle detection techniques have revolutionised medical diagnosis. Detectors invented by Georges Charpak in 1968 allow X-ray images to be made using a fraction of the dose required by photographic methods. Crystals developed for CERN experiments in the 1980s are now ubiquitous in PET scanners. And today, developments for a new generation of CERN detectors are allowing PET and MRI imaging techniques to be combined in a single device.



Former physicist Tim Berners-Lee invented the World-Wide Web as an essential tool for High Energy Physics (HEP) at CERN from 1989 to 1994. Together with a small team he conceived HTML, http, URLs, and put up the first server and the first wysiwyg (what you see is what you get) browser and html editor. Tim is now Director of the Web Consortium W3C, the International Web standards body based at INRIA, MIT and Keio University.



In 1968, Georges Charpak developed the multiwire proportional chamber, a gas-filled box with a large number of parallel detector wires, each connected to individual amplifiers. Linked to a computer, it could achieve a counting rate a thousand times better than existing techniques – without a camera in sight.



For detecting the direction and momenta of charged particles with extreme accuracy, the ALEPH detector had at its core a time projection chamber, for years the world’s biggest. The experiment also became renowned for its innovative software for visualizing particle collisions.

CERN’s basic tools – particle accelerators and detectors – also have applications in everyday life. Invented as tools for research, there are thousands of particle accelerators in operation in the world today, of which only a small percentage are used in basic research. The vast majority find applications ranging from medical diagnosis and therapy to computer chip manufacture.

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