Stabilization of spatio-temporal dynamics of free-electron laser operationunder effect of spread in electron velocity

Authors
Savilov, AV
Citation
Av. Savilov, Stabilization of spatio-temporal dynamics of free-electron laser operationunder effect of spread in electron velocity, NUCL INST A, 429(1-3), 1999, pp. 65-69
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
429
Issue
1-3
Year of publication
1999
Pages
65 - 69
Database
ISI
SICI code
0168-9002(19990611)429:1-3<65:SOSDOF>2.0.ZU;2-9
Abstract
The effect of velocity spread on the dynamics of the interaction of longitu dinal modes is studied for a FEL-oscillator with broadband feedback. It is shown that the spread shortens the process of mode competition and increase s the electron-current threshold of stable single-mode operation. In additi on, the spread leads to a shift in the frequency of the excited mode to the range of the most efficient electron-wave interaction. This results in a v ery weak sensitivity of the efficiency to the spread. (C) 1999 Elsevier Sci ence B.V. All rights reserved.