The Cosmotron was a particle accelerator, specifically a proton synchrotron, at Brookhaven National Laboratory. Its construction was approved by the U.S. Atomic Energy Commission in 1948, it reached its full energy in 1953, and it continued running until 1968. It was the first particle accelerator to impart kinetic energy in the range of GeV to a ... Found on http://en.wikipedia.org/wiki/Cosmotron
(from the article `particle accelerator`) The first proton synchrotron to operate (1952) was the 3-GeV Cosmotron at Brookhaven. It, and other accelerators that soon followed, had weakly ... Found on http://www.britannica.com/eb/a-z/c/147