Journal
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
Volume 445, Issue 1-3, Pages 105-109Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/S0168-9002(00)00122-4
Keywords
bunched beam; coherent spontaneous emission; high-gain free-electron laser; self-amplified spontaneous emission
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We investigate effects of the bunch density gradient in self-amplified spontaneous emission, including the role of coherent spontaneous emission (CSE) in the evolution of the free-electron laser process. In the exponential gain regime, we solve the coupled Maxwell-Vlasov equations and extend the linear theory to a bunched beam with energy spread. A time-dependent, nonlinear simulation algorithm is used to study the CSE effect and the nonlinear evolution of the radiation pulse. Published by Elsevier Science B.V.
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