Skip to main content

Lund University Publications

LUND UNIVERSITY LIBRARIES

Q-switch techniques implemented at the Elettra storage-ring free-electron laser

Curbis, F. LU orcid ; Danailov, M. B. ; Diviacco, B. ; Romanzin, L. ; Trovò, M. and De Ninno, G. (2006) 28th International Free Electron Laser Conference, FEL 2006 p.360-363
Abstract

In a Storage-Ring Free-Electron Laser (SRFEL) giant pulses can be produced by the interaction between the light stored in the optical cavity and an electron beam with low energy-spread (cold beam). This interplay produces the heating of the beam. After the generation of a single giant pulse the overlap between electrons and radiation is periodically prevented for a time necessary to dump the energy spread and recover the cold-beam condition. Two different methods are now implemented at Elettra for giant pulse generation. In the first, by modifying the radio-frequency of the ring, a change of the revolution time of electrons is induced. This avoids the temporal overlap between the electron beam and the optical field in the mirror cavity.... (More)

In a Storage-Ring Free-Electron Laser (SRFEL) giant pulses can be produced by the interaction between the light stored in the optical cavity and an electron beam with low energy-spread (cold beam). This interplay produces the heating of the beam. After the generation of a single giant pulse the overlap between electrons and radiation is periodically prevented for a time necessary to dump the energy spread and recover the cold-beam condition. Two different methods are now implemented at Elettra for giant pulse generation. In the first, by modifying the radio-frequency of the ring, a change of the revolution time of electrons is induced. This avoids the temporal overlap between the electron beam and the optical field in the mirror cavity. The second method relies on a mechanical gating (chopper) which intercepts the light produced during previous interactions, inducing a periodic depletion of the optical cavity. The giant-pulses repetition rate is determined by the periodicity of the radio-frequency changes and the rotating velocity of the chopper, respectively. In this paper we compare the different techniques mentioned above for the case of the Elettra SRFEL.

(Less)
Please use this url to cite or link to this publication:
author
; ; ; ; and
publishing date
type
Contribution to conference
publication status
published
pages
4 pages
conference name
28th International Free Electron Laser Conference, FEL 2006
conference location
Berlin, Germany
conference dates
2006-08-27 - 2006-09-01
external identifiers
  • scopus:84884659473
language
English
LU publication?
no
id
740fd581-96b5-48eb-94bf-d8ba3197207b
date added to LUP
2020-02-12 21:38:07
date last changed
2022-02-01 03:35:28
@misc{740fd581-96b5-48eb-94bf-d8ba3197207b,
  abstract     = {{<p>In a Storage-Ring Free-Electron Laser (SRFEL) giant pulses can be produced by the interaction between the light stored in the optical cavity and an electron beam with low energy-spread (cold beam). This interplay produces the heating of the beam. After the generation of a single giant pulse the overlap between electrons and radiation is periodically prevented for a time necessary to dump the energy spread and recover the cold-beam condition. Two different methods are now implemented at Elettra for giant pulse generation. In the first, by modifying the radio-frequency of the ring, a change of the revolution time of electrons is induced. This avoids the temporal overlap between the electron beam and the optical field in the mirror cavity. The second method relies on a mechanical gating (chopper) which intercepts the light produced during previous interactions, inducing a periodic depletion of the optical cavity. The giant-pulses repetition rate is determined by the periodicity of the radio-frequency changes and the rotating velocity of the chopper, respectively. In this paper we compare the different techniques mentioned above for the case of the Elettra SRFEL.</p>}},
  author       = {{Curbis, F. and Danailov, M. B. and Diviacco, B. and Romanzin, L. and Trovò, M. and De Ninno, G.}},
  language     = {{eng}},
  month        = {{12}},
  pages        = {{360--363}},
  title        = {{Q-switch techniques implemented at the Elettra storage-ring free-electron laser}},
  year         = {{2006}},
}