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) | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Parker, David |
Taille de l’image : | 5172 px × 3449 px |
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