16 February 1984 Subharmonic Buncher For The Los Alamos Free Electron Laser Oscillator Experiment
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Proceedings Volume 0453, Free-Electron Generators of Coherent Radiation; (1984) https://doi.org/10.1117/12.947089
Event: Free-Electron Generators of Coherent Radiation, 1983, Orcas Island, United States
Abstract
A high-efficiency, free electron laser, oscillator experiment is being conducted at Los Alamos National Laboratory. A buncher system has been designed to deliver 30-ps, 5-nC electron bunches to a 20-MeV standing-wave linac at the 60th subharmonic of the 1300-MHz accelerator frequency. The first 108.3-MHz buncher cavity accepts a 5-ns, 5-A peak current pulse from a triode gun. Following a 120-cm drift space, a second 108.3-MHz cavity is used, primarily to enhance the bunching of the trailing half of the bunch. A 1300-MHz cavity with 20-cm drift spaces before and after the cavity completes the beamline compo-nents. The bunching process continues into the linac's first three accelerating cells. Two thin iron-shielded lenses and several large-diameter solenoids provide axial magnetic fields for radial focusing.
© (1984) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
J. S. Fraser, "Subharmonic Buncher For The Los Alamos Free Electron Laser Oscillator Experiment", Proc. SPIE 0453, Free-Electron Generators of Coherent Radiation, (16 February 1984); doi: 10.1117/12.947089; https://doi.org/10.1117/12.947089
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