Booster
Located nearly 20 feet below ground, the Booster is a 500 foot in diameter circular accelerator that uses magnets to bend electrically charged particles in a circular path. They experience the repeated action of accelerating electric fields during each revolution, increasing their energy each time. The protons travel around the Booster about 20,000 times, and their energy is raised to eight billion electron volts (8 GeV).
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