The tunnel of the Super-Proton-Synchrotron (SPS) particle accelerator at CERN,the European particle physics laboratory outside Geneva. The SPS first accelerated protons in 1976,achieving energies of 400 GeV. Since 1981,the machine has also operated as a proton-antiproton collider,with the same bending magnets (red) & focusing magnets (blue) guiding protons and antiprotons around the ring in opposite directions. The accelerator forms an underground ring 7 km in circumference. The photo was taken in 1976,shortly before the SPS began operating | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Cern |
Bildgröße: | 4725 px × 3738 px |
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