|THP079||Status and Perspectives of the FERMI FEL Facility (2019)||742|
FERMI is the seeded Free Electron Laser (FEL) user facility at the Elettra laboratory in Trieste, operating in the VUV to EUV and soft X-rays spectral range; the radiation produced by the seeded FEL is characterized by wavelength stability, low temporal jitter and longitudinal coherence in the range 100-4 nm. During 2018 a dedicated experiment has shown the potential of the Echo Enabled Harmonic Generation (EEHG) scheme  to cover most of this spectral range with a single stage cascade . Such a scheme, combined to an increment of the beam energy and of the accelerator performances, could extend the FERMI operating range toward the oxygen k-edge. With this perspective, we present the development plans under consideration for the next 3 to 5 years. These include an upgrade of the linac and of the existing FEL lines, consisting in the conversion of FEL-1 first, and FEL-2 successively, into EEHG seeded FELs.
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 P. Rebernik et al., Nature Photonics https://doi.org/10.1038/s41566-019-0427-1
|DOI •||reference for this paper ※ https://doi.org/10.18429/JACoW-FEL2019-THP079|
|About •||paper received ※ 28 August 2019 paper accepted ※ 29 August 2019 issue date ※ 05 November 2019|
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