Word: bev
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Beam Switchyard. For the remainder of the two-mile journey, most of the energy imparted to the electrons by the radio wave is in the form of mass. As a result, each electron increases its mass 40,000 times, and has acquired about 20 billion electron volts (BEV) of energy by the time it reaches the far end of the copper tube. There, the extremely powerful stream of charged particles passes through a beam "switchyard," where giant electromagnets direct it into one or another of two target buildings, or split it between both...
Subatomic World. Though SLAC's 20 BEV output is exceeded by the more familiar synchrotrons-devices that accelerate atomic particles by whirling them in a circular path-linear acceleration has several advantages. The beam is easier to control, more accessible for experimentation and bombards a target with more particles per second -increasing the probability of particle interaction. Even more important, circular accelerators cannot impart energies of more than about ten BEV to electrons which radiate away much of their energy when traveling in a circular path. Synchrotrons and other circular accelerators such as cyclotrons and betatrons are usually used...
...much energy as generated in the next most powerful electron accelerator, should produce new and revealing glimpses of the subatomic world by their reactions with atomic nuclei. SLAC has also been designed for the eventual addition of another 715 klystrons, which would increase its energy level to 40 BEV, exceeding even the output of Brookhaven National Laboratory's 33 BEV proton-accelerating synchrotron, currently the world's most powerful accelerator...
Omega-Minus Signature. The unknown particle predicted by the eightfold way was named omega minus, and both CERN Laboratory in Geneva and Brookhaven National Laboratory on Long Island started elaborate campaigns to find it. Brookhaven's apparatus was built around the 33-bev (billion electron volt) Alternating Gradient Synchrotron, and it used a line of magnets and electrostatic separators 400 ft. long to isolate negative K-mesons. Ten of the K-mesons were allowed to enter Brookhaven's 80-in. liquid-hydrogen bubble chamber every 2½ seconds, and pictures were taken of the results. Two pictures...
...million low-energy (12.5 Bev) machine with a high-intensity beam that will contain 100 times as many protons as Brookhaven's present 33-Bev synchrotron. In one year, this massive beam will perform experiments that would require 100 years on Brookhaven's present equipment...