Abstract
We present a statistical analysis of the temporal and spectral properties of self-amplified spontaneous emission from an energy-chirped electron beam passing through a long undulator. It is found that the coherence time is independent of the chirp, while the range of spectral coherence is linearly proportional to it. We consider the use of a monochromator to pick out a small temporal slice of the radiation output. For the filtered radiation pulse, we determine the pulse duration, the number of modes, and the energy fluctuation. We apply our analysis to schemes proposed to generate short x-ray pulses at the Linac Coherent Light Source. © 2003 The American Physical Society.
Figures
![FIG. 1. For LCLS, we plot the rms pulse duration t of the 1:5 A !0 1:2 1019 s 1 radiation after a monochromator with rms bandpass m=!0 for a (full) energy chirp across the 230 fs electron bunch of (a) 0.5% as considered in Refs. [5,6];](https://s3-eu-west-1.amazonaws.com/com.mendeley.prod.article-extracted-content/images/98df5e1c-0fcf-378c-a49b-3ba63531bf25/thumbnail-f2ae7d7d-fc67-4b58-8d66-069ffb804ba8-0.png)
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CITATION STYLE
Krinsky, S., & Huang, Z. (2003). Frequency chirped self-amplified spontaneous-emission free-electron lasers. Physical Review Special Topics - Accelerators and Beams, 6(5), 11–17. https://doi.org/10.1103/PhysRevSTAB.6.050702
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