Inline beam spot measurement of highcurrent shortpulse electronbeam
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Abstract
An online beam spot diagnostic system for high current,short pulse electron beam based on Cerenkov radiation is introduced. A 0.5mmthick, 80mmdia. quartz foil, which is placed on the actuator, is chosen as the radiator. The Cerenkov radiation signals are detected by CCD camera and the images are processed by computer. Results of beam spot measurement on the 2MeV injector and 12MeV LIA of CAEP are reported.
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