Antiproton Accumulator at CERN

Antiproton Accumulator at CERN

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Credit: HEINI SCHNEEBELI/SCIENCE PHOTO LIBRARY

Caption: The Antiproton Accumulator (AA) at CERN, the European particle physics laboratory outside Geneva, is designed to store & concentrate successive bunches of antiprotons until they form a beam dense enough to be injected into the Super- Proton-Synchrotron (SPS) accelerator. In the SPS, protons & antiprotons circle in opposite direct- ions until they reach high energy & are brought to collide head-on. This fish-eye photograph shows the AA ring, dominated by the large, blue, dipole magnets which bend the antiprotons along their circular path. The smaller red, quadrupole magnets are used to focus the antiprotons into a tighter beam.

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Keywords: accelerator, antiproton accumulator, cern, european centre for, nuclear research, particle physics laboratory

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