Photo-cathode RF-gun System - KEK

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High Energy Accelerator Research OrganizationMotivation : Purpose of ExperimentsThermionic gun system (including SHB and Buncher) at KEK-ATF1. Long tail beam2. Beam lossLaser-driven Photo-cathode RF-gun(BNL type 1.6 cell S-band)1. Low Emittance BeamHigh Gradient AccelerationDecrease in Space Charge Effect2. Short bunch (No tail)Bunch length and structure can be controlled by laserNo buncher system required Compact SystemDecrease the Beam LossWe have performed characterization of photo-cathode RF-gun system bycomparing with thermionic gun system at KEK-ATF.Research Institute for Science and Engineering, Waseda University
High Energy Accelerator Research OrganizationHoweverWe could not use a new RF-gun cavity and cathodebeacause we had no time for manufacturing the new one.We installed the prototype RF-gun (non-diamond turning, Copper Cathode)which used for a long time at Tokyo University.RF-gun at Tokyo UniversityResearch Institute for Science and Engineering, Waseda University
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Photo-cathode RF-gun System - KEK

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