Title of article
Transverse coherence of self-amplified spontaneous emission
Author/Authors
Xie، نويسنده , , Ming، نويسنده ,
Pages
5
From page
67
To page
71
Abstract
Transverse coherence of Self-Amplified Spontaneous Emission (SASE) in high-gain FELs is investigated through a three-dimensional eigenmode analysis. It is the first time such an analysis could be carried out to account for the effects of emittance and betatron focusing. In addition to the variational solution (Xie, Nucl. Instr. and Meth. A 445 (2000) 59, these proceedings) found for the fundamental mode, E00, similar solutions are derived here for two higher order eigenmodes, E10 and E01. Based on the growth rates of these three modes, a universal criteria on transverse coherence of SASE is proposed.
Keywords
Transverse coherence , SASE , 3D , high-gain FEL theory
Journal title
Astroparticle Physics
Record number
2011964
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