(PhysOrg.com) -- The focus of Berkeley Labs Advanced Photon Injector Experiment, APEX, is an extraordinary electron gun specially designed for the front end of superconducting accelerators. When its complete, the APEX gun will be able to produce well-formed bunches of electrons in pulses a few trillionths or even mere quadrillionths of a second long, at rates of up to a million bunches per second.
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