Electron beam diagnostic for the Los Alamos free electron laser oscillator experiment
Abstract
An electron beam diagnostic for a free electron laser (FEL) oscillator experiment is used to measure the time dependence of the electron energy distribution in a 100-(MU)s time interval. The electron beam consists of macropulses that have a duration of 100 (MU)s and a repetition rate of 1 Hz. Each macropulse consists of a series of micropulses that have approx. 30 ps duration, approx. 50 A peak current, and approx. 50 ns separation. The primary purpose of the electron beam diagnostic is measurement of the time dependence of the electron energy distribution during the build up of the photon field in the oscillator. Since the exact time of build up depends on various RF and cavity considerations, provisions are made to allow the observation window to be varied from 10 to 100 (MU)s and to be delayed by times up to 100 (MU)s.
- Publication:
-
Presented at the Linear Accelerator Conf. LINAC 84
- Pub Date:
- 1984
- Bibcode:
- 1984lina.conf....7S
- Keywords:
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- Diagnosis;
- Electron Beams;
- Energy Spectra;
- Free Electron Lasers;
- Oscillators;
- Time Dependence;
- Micropulsations;
- Photon Density;
- Photons;
- Time Lag;
- Time Measurement;
- Lasers and Masers