TWO-CHANNEL DIELECTRIC WAKE FIELD ACCELERATOR

Jay L. Hirshfield

关键词: ACCELERATION;    ACCELERATORS;    CHARGE DISTRIBUTION;    CHERENKOV RADIATION;    DIELECTRIC MATERIALS;    TRANSFORMERS;    WAKEFIELD ACCELERATORS;    WAVEGUIDES wakefield;    two-channel;    transformer ratio;    dielectric-lined;    acceleration;   

DOI  :  10.2172/1041313
RP-ID  :  DOE/ER 84473-p55
PID  :  OSTI ID: 1041313
Others  :  TRN: US1203435

美国|英语

来源: SciTech Connect

【 摘 要 】

Experimental results are reported for test beam acceleration and deflection in a two-channel, cm-scale, rectangular dielectric-lined wakefield accelerator structure energized by a 14-MeV drive beam. The dominant waveguide mode of the structure is at {approx}30 GHz, and the structure is configured to exhibit a high transformer ratio ({approx}12:1). Accelerated bunches in the narrow secondary channel of the structure are continuously energized via Cherenkov radiation that is emitted by a drive bunch moving in the wider primary channel. Observed energy gains and losses, transverse deflections, and changes in the test bunch charge distribution compare favorably with predictions of theory.