Effects of bunch density gradient in high-gain free-electron lasers

Authors
Huang, ZR Kim, KJ
Citation
Zr. Huang et Kj. Kim, Effects of bunch density gradient in high-gain free-electron lasers, NUCL INST A, 445(1-3), 2000, pp. 105-109
Citations number
7
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences","Instrumentation & Measurement
Journal title
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
ISSN journal
01689002 → ACNP
Volume
445
Issue
1-3
Year of publication
2000
Pages
105 - 109
Database
ISI
SICI code
0168-9002(20000501)445:1-3<105:EOBDGI>2.0.ZU;2-1
Abstract
We investigate effects of the bunch density gradient in self-amplified spon taneous emission, including the role of coherent spontaneous emission (CSE) in the evolution of the free-electron laser process. In the exponential ga in regime, we solve the coupled Maxwell-Vlasov equations and extend the lin ear theory to a bunched beam with energy spread. A time-dependent, nonlinea r simulation algorithm is used to study the CSE effect and the nonlinear ev olution of the radiation pulse. Published by Elsevier Science B.V.