Storage-Ring FEL longitudinal dynamics

G. Dattoli, L. Giannessi, A. Renieri

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We study the modifications induced on the longitudinal dynamical behaviour of an e-beam circulating in a Storage-Ring (S.R.) and undergoing a FEL interaction. We discuss the low gain amplifier case and, using the Fokker-Planck equation, evaluate the effect of the FEL interaction on the longitudinal damping time, which is shown to be a function of the detuning parameter and of the intensity itself. We develop a self-consistent model of the S.R. FEL dynamics capable of including saturation, induced energy spread and damping time modifications. The model is shown to be particularly useful to investigate the system evolution and the interplay between the various features causing the saturation of the device.
Original languageEnglish
Pages (from-to)353 - 362
Number of pages10
JournalOptics Communications
Issue number1-3
Publication statusPublished - 15 Jan 1996
Externally publishedYes


All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering

Cite this

Dattoli, G., Giannessi, L., & Renieri, A. (1996). Storage-Ring FEL longitudinal dynamics. Optics Communications, 123(1-3), 353 - 362.