To create the world's most powerful particle beams, Fermilab uses a series of accelerators. Starting with hydrogen gas, scientists create proton beams. They divert a part of the proton beams to create antiprotons. Then the antiprotons and the remainder of protons are independently accelerated to higher energies, circulating the ring-shaped tunnels in opposite directions, until they collide at the CDF and DZero detectors.
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