FEL GAIN AS A FUNCTION OF PHASE DISPLACEMENT INDUCED BY UNDULATOR INTERSECTION GAPS

Authors
VARFOLOMEEV AA YAROVOI TV
Citation
Aa. Varfolomeev et Tv. Yarovoi, FEL GAIN AS A FUNCTION OF PHASE DISPLACEMENT INDUCED BY UNDULATOR INTERSECTION GAPS, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 375(1-3), 1996, pp. 352-355
Citations number
9
Categorie Soggetti
Nuclear Sciences & Tecnology","Physics, Particles & Fields","Instument & Instrumentation",Spectroscopy
Journal title
Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment → ACNP
ISSN journal
01689002
Volume
375
Issue
1-3
Year of publication
1996
Pages
352 - 355
Database
ISI
SICI code
0168-9002(1996)375:1-3<352:FGAAFO>2.0.ZU;2-#
Abstract
FEL gain characteristics are considered for the FEL construction based on a multisection undulator with small intersection gaps. It is shown that induced by these gaps phase displacements between optical wave a nd electrons can noticeably change the gain resonance frequency as wel l as the gain curve shape. The effect can be used for fast resonance f requency tuning of the FEL undulator and for its step tapering.