Title :
Temporal characteristics of a SASE FEL
Author :
Li, Y. ; Huang, Z. ; Lewellen, J. ; Milton, S.V. ; Sajaev, V. ; Kim, K.-J.
Author_Institution :
Argonne Nat. Lab., IL, USA
Abstract :
We have performed a single-shot, time-resolved measurement of the output field of a SASE FEL using the frequency-resolved optical gating (FROG) technique. The measurement reveals the phase and the amplitude of the SASE output as functions of time and frequency, hence enables us to perform a full characterization of the SASE FEL output. We examined both the single-shot field evolution as well as the statistics over multiple shots on the phase and intensity evolution.
Keywords :
chirp modulation; free electron lasers; optical harmonic generation; particle beam bunching; particle beam diagnostics; time resolved spectroscopy; SASE FEL; frequency-resolved optical gating technique; intensity evolution; multiple shots; single-shot field evolution; time-resolved measurement; Chirp; Electrons; Frequency measurement; Magnetic field measurement; Nonlinear optics; Optical harmonic generation; Optical saturation; Performance evaluation; Phase measurement; Undulators;
Conference_Titel :
Particle Accelerator Conference, 2003. PAC 2003. Proceedings of the
Print_ISBN :
0-7803-7738-9
DOI :
10.1109/PAC.2003.1289530
