Stanford Linear Accelerator

Stanford Linear Accelerator

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Credit: DAVID PARKER/SCIENCE PHOTO LIBRARY

Caption: The End Station A experimental hall at the Stan- ford Linear Accelerator Center (SLAC), California, contains three giant particle spectrometers which detect particles of different energies, & scatter- ed at different angles. The particles are created in collisions between electrons from SLAC's 3 km long linear accelerator & a target in front of the spectrometers. The large spectrometer dominating the picture is about 30 m long & weighs 500 tons. A smaller, circular spectrometer is to its left, & the third - even larger - is mostly hidden by the central one. Experiments at End Station A in 1968- 72 confirmed the existence of quarks. A man below the central spectrometer gives scale. (June '84)

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Keywords: center, detector, detectors, discovery of, end station a, odyssey, particle physics laboratory, particle spectrometer, quark, research, slac, stanford linear accelerator

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