A STUDY OF LINEWIDTH, NOISE AND FLUCTUATIONS IN A FEL OPERATING IN SASE

Authors
BONIFACIO R DESALVO L PIERINI P PIOVELLA N PELLEGRINI C
Citation
R. Bonifacio et al., A STUDY OF LINEWIDTH, NOISE AND FLUCTUATIONS IN A FEL OPERATING IN SASE, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 341(1-3), 1994, pp. 181-185
Citations number
14
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
341
Issue
1-3
Year of publication
1994
Pages
181 - 185
Database
ISI
SICI code
0168-9002(1994)341:1-3<181:ASOLNA>2.0.ZU;2-1
Abstract
We study the evolution of the FEL radiation intensity and spectrum sta rting from noise in the electron beam longitudinal distribution. Due t o the slippage both the time and frequency structure of the emitted ra diation pulse show a very different behavior when the bunch length is much longer than or of the order of the cooperation length l(c). The o ccurrence of superradiant spikes is discussed. We present analytical a nd numerical results.