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Macro-pulse generation in a storage-ring free-electron laser : A single-particle plus FEL numerical approach

Curbis, F. LU orcid ; Allaria, E. and De Ninno, G. (2006) 10th European Particle Accelerator Conference, EPAC 2006 p.89-91
Abstract

In a storage-ring free-electron laser (FEL), the onset and growth of intra-cavity power at the resonator wavelength can be naturally accompanied by coherent emission at higher harmonics. Contrary to what happens in singlepass linac-based devices, the electron beam is re-circulated in the storage ring and, while the microbunching becomes "thermalized" from turn to turn, the evolution of other bunch properties has to be considered. As a consequence, a correct theoretical understanding of the process requires a proper modeling of turn-by-turn evolution of the electronbeam phase-space, both inside the undulators, where the FEL interaction takes place, and along the ring. To simulate this process we have coupled a modified version of the 3D... (More)

In a storage-ring free-electron laser (FEL), the onset and growth of intra-cavity power at the resonator wavelength can be naturally accompanied by coherent emission at higher harmonics. Contrary to what happens in singlepass linac-based devices, the electron beam is re-circulated in the storage ring and, while the microbunching becomes "thermalized" from turn to turn, the evolution of other bunch properties has to be considered. As a consequence, a correct theoretical understanding of the process requires a proper modeling of turn-by-turn evolution of the electronbeam phase-space, both inside the undulators, where the FEL interaction takes place, and along the ring. To simulate this process we have coupled a modified version of the 3D numerical code Ginger, which models the FEL interaction, together with a linear one-turn map, which propagates the electron beam along the ring. We present our results and a first benchmarking with experiments carried out using the Elettra storage-ring FEL.

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author
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publishing date
type
Contribution to conference
publication status
published
pages
3 pages
conference name
10th European Particle Accelerator Conference, EPAC 2006
conference location
Edinburgh, United Kingdom
conference dates
2006-06-26 - 2006-06-30
external identifiers
  • scopus:84898825599
language
English
LU publication?
no
id
53f20d5d-9e50-4161-8496-6e469f62371a
date added to LUP
2020-02-12 21:38:48
date last changed
2022-02-01 03:35:28
@misc{53f20d5d-9e50-4161-8496-6e469f62371a,
  abstract     = {{<p>In a storage-ring free-electron laser (FEL), the onset and growth of intra-cavity power at the resonator wavelength can be naturally accompanied by coherent emission at higher harmonics. Contrary to what happens in singlepass linac-based devices, the electron beam is re-circulated in the storage ring and, while the microbunching becomes "thermalized" from turn to turn, the evolution of other bunch properties has to be considered. As a consequence, a correct theoretical understanding of the process requires a proper modeling of turn-by-turn evolution of the electronbeam phase-space, both inside the undulators, where the FEL interaction takes place, and along the ring. To simulate this process we have coupled a modified version of the 3D numerical code Ginger, which models the FEL interaction, together with a linear one-turn map, which propagates the electron beam along the ring. We present our results and a first benchmarking with experiments carried out using the Elettra storage-ring FEL.</p>}},
  author       = {{Curbis, F. and Allaria, E. and De Ninno, G.}},
  language     = {{eng}},
  month        = {{01}},
  pages        = {{89--91}},
  title        = {{Macro-pulse generation in a storage-ring free-electron laser : A single-particle plus FEL numerical approach}},
  year         = {{2006}},
}