Simon Van der Meer (1925-2011),Dutch physicist in the control room of the Antiproton Accumulator at CERN,the European particle physics laboratory outside Geneva. In the early 1970s,Van der Meer invented a technique for storing & concentrating antiprotons so that they would form a dense beam. This method,called stochastic cooling,is used in CERN's Antiproton Accumulator,from which antiprotons are injected into the Super-Proton- Synchrotron (SPS) accelerator & collided with protons. Use of the SPS as a proton-antiproton collider led to the 1983 discovery of the W & Z particles,the carriers of the weak force,for which Van der Meer shared the 1984 Nobel Prize for physics with Carlo Rubbia. Photographed in January 1984 | |
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