Frequency chirped self-amplified spontaneous-emission free-electron lasers

被引：43
|
作者：
Krinsky, S [1 ]
Huang, Z
机构：
[1] Stanford Linear Accelerator Ctr, Stanford, CA 94309 USA
[2] Brookhaven Natl Lab, Upton, NY 11973 USA
来源：
PHYSICAL REVIEW SPECIAL TOPICS-ACCELERATORS AND BEAMS | 2003年 / 6卷 / 05期
关键词：
D O I：
10.1103/PhysRevSTAB.6.050702
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
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.
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页数：7
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