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A log book entry written by Wolfgang Gentner, the head of SC Division, and signed by various colleagues, tells us that ‘a short celebration’ was held on the 1st of August 1957 following the successful  appearance of the first circulating beam.   The 600 MeV Synchrocyclotron (SC)  was CERN’s first accelerator and provided beams for its earliest particle and nuclear physics experiments.  It was a remarkably long-lived machine, even when superseded by the larger Proton Synchrotron, and operated for 33 years before being decommissioned in December 1990. Work is currently underway to give the SC a new lease of life as an exhibition area and visitor attraction.  
Archival historical image
A team photo celebrates  the completion of the SPS tunnel in July 1974. The Super Proton Synchrotron (SPS) was the first of CERN’s giant accelerators. It was also the first cross-border accelerator. Excavation took around two years, and on 31 July 1974 the Robbins tunnel-boring machine returned to its starting point having crossed the Franco-Swiss border and excavated a tunnel with a circumference of 7 kilometres and an average depth of 40 metres below the surface.   The SPS was commissioned in 1976, and a highlight of its career came in 1983 with the announcement of the Nobel Prize-winning discovery of W and Z particles.
Archival historical image

The 6th meeting of Nobel Prize laureates, held in Lindau from 25 to 29 June 1956, was devoted to physics.  In attendance were 23 Nobel laureates and 124 young researchers. The Lindau meetings  began in 1951, and provide a unique platform for dialogue between different scientific generations.  This year’s meeting (1 to 6 July 2012) will also be dedicated to physics, with more than 25 Nobel laureates and 550 young scientists from all over the world.


Wolfgang Pauli won the Nobel Prize for Physics in 1945 for his Exclusion Principle. His scientific archive is held at CERN.


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