| Paper |
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| WEPAB228 |
Modelling and Counteracting Microbunching Instability in Spreader Lines of Radiofrequency and Plasma-Based Accelerators for Free-Electron Lasers |
3165 |
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- G. Perosa
Università degli Studi di Trieste, Trieste, Italy
- S. Di Mitri
Elettra-Sincrotrone Trieste S.C.p.A., Basovizza, Italy
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High energy radiofrequency and plasma-driven accelerators target electron beam brightness suitable for x-ray free-electron lasers. Microbunching instability can be enhanced during beam transport through the spreader line from the accelerator to the undulator, degrading the brightness of the accelerated beam and therefore reducing the lasing efficiency. We present a semi-analytical model of the instability, benchmarked with experimental data at the FERMI free-electron laser, in the presence of intrabeam scattering and beam heating. Strategies for minimization of the instability both in conventional and plasma-based accelerators are discussed.
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| DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-IPAC2021-WEPAB228
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| About • |
paper received ※ 19 May 2021 paper accepted ※ 08 July 2021 issue date ※ 02 September 2021 |
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