A type of particle accelerator used to accelerate protons to extremely high energies for physics research; an early particle accelerator.
From Greek kosmos (world) + -tron (from electron, referring to a machine or device). This term was used for a specific accelerator built at Brookhaven National Laboratory in the 1950s.
The Cosmotron was one of the first machines powerful enough to reveal new subatomic particles—it's named 'cosmos-maker' because it was creating conditions like those in the early universe!
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