SPUTNIK / SCIENCE PHOTO LIBRARY SPUTNIK / SCIENCE PHOTO LIBRARY
Cyclotron particle accelerator being examined by scientists and technicians. This is a U-400 cyclotron at Russia's United Institute for Nuclear Research. A cyclotron is a circular accelerator that accelerates particles by using strong electric and magnetic fields. Particle accelerators are used to accelerate particles to produce high-energy collisions. The results help physicists understand the structure of matter and the origins of the universe. Photographed in 1986, in Dubna, in the Moscow region of Russia.
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