Word: bevatrons
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Dates: during 1950-1959
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Antiprotons were created last fall by the world's most powerful particle accelerator, the Bevatron, at Berkeley, Calif., but they could be detected only indirectly by a complicated electronic method (TIME, Oct. 31). Scientists wanted to "see" them by one of the more direct methods that they use to make subatomic particles visible. So the Berkeley scientists shot antiprotons from their great machine into a stack of photographic films. Their hope was that they would find microscopic tracks in the films that could be identified as the work of an antiproton...
...into Matter. Last week a team of physicists at the University of California told how they created antiprotons artificially and kept them alive long enough to identify them. Drs. Owen Chamberlain, Emilio Segre, Clyde Wiegand and Thomas Ypsilantis worked with Berkeley's Bevatron, a particle accelerator that was built by the Atomic Energy Commission for just such jobs. It can shoot a proton so fast that it carries 6.2 Bev. (billion electron volts) of energy. Physicists had figured that when a proton of this power hits a neutron, it will create a new proton and an antiproton. In such...
Contact between the two forms of matter would lead to annihilation of both with the release of enormous amounts of energy, he added. It was possible to discover the anti-proton only when large amounts of energy were produced in the University of California's new bevatron, he said...
This was energy of a wholly different magnitude from any ever observed in atomic particles-more than 1,500,000 times the energy of the particles shot out by the University of California's powerful bevatron, and 50 million times the energy of a splitting uranium atom in an Abomb. The "something," Physicist Schein thought, was most probably an illusive particle called an antiproton (negative proton), which theoretical physicists have long guessed about, but never observed...
...strange, monstrous "bevatron" slowly coming to life on Charter Hill above Berkeley, Calif, is the world's greatest...