Abstract
UCLA (University of California at Los Angeles) is proposing a compact superconducting high-luminosity (10/sup 32-33/ cm/sup -2/ s/sup -1/) e/sup +/e/sup -/ collider for a phi factory. To achieve the required e/sup +/e/sup -/ currents, full energy injection from a linac with intermediate storage in a positron accumulator ring (PAR) is used. The elements of the linac are outlined with cost and future flexibility in mind. The preliminary conceptual design starts with a high current gun similar in design to those developed at SLAC and at ANL (for the APS). Four 4-section linac modules follow, each driven by a 60-MW klystron with a 1- mu s macropulse and an average current of 8.6 A. The first 4-section module is used to create positrons in a tungsten target at 186 MeV. The remaining three modules are used to accelerate the e/sup +/e/sup -/ beam to 558 MeV (no load limit) for injection into the PAR. >
Published Version
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