Electron Beam Diagnostics For The Los Alamos Free-Electron Laser Oscillator Experiment

R. L. Sheffield; W. E. Stein; A. Lumpkin; R. W. Warren; J. S. Fraser

doi:10.1117/12.947091

16 February 1984 Electron Beam Diagnostics For The Los Alamos Free-Electron Laser Oscillator Experiment

R. L. Sheffield, W. E. Stein, A. Lumpkin, R. W. Warren, J. S. Fraser

Proceedings Volume 0453, Free-Electron Generators of Coherent Radiation; (1984) https://doi.org/10.1117/12.947091
Event: Free-Electron Generators of Coherent Radiation, 1983, Orcas Island, United States

Abstract

Electron beam diagnostics for the Los Alamos free-electron laser oscillator experiment have been designed to measure the time dependence of the electron energy distribution with time intervals ranging from 30 ps to 200 ps. The electron beam consists of macropulses that have a 100 us duration and a 1 Hz repetition rate. Each macropulse consists of a series of micropulses that have 1,30 ps duration, %50 A peak current, and 1,50 ns separation. The primary purposes of the electron beam diagnostics is twofold: (1) optimization of the bunching system to provide a maximum peak current in the micropulses and (2) measurement of the time dependence of the electron energy distribution during build-up of the photon field in the oscillator. Because the exact time of build-up is uncertain, provisions have been made to allow the observation window to be varied from 10 to 100 us and to be delayed by times up to 100 us.

Citation Download Citation

R. L. Sheffield, W. E. Stein, A. Lumpkin, R. W. Warren, and J. S. Fraser "Electron Beam Diagnostics For The Los Alamos Free-Electron Laser Oscillator Experiment", Proc. SPIE 0453, Free-Electron Generators of Coherent Radiation, (16 February 1984); https://doi.org/10.1117/12.947091

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