A seeded FEL driven by a linac based on super conducting cavities, generating 10(8)-10(10)coherent photons per shot at 2-5 keV with 0.2-1 MHz of repetition rate, can address the need of a source devoted to fine analysis of matter using the linear spectroscopy technique. The seeding scheme described hereafter is a multi-stage cascade upshifting the radiation frequency by a factor 20-40. The x-ray range can be achieved with a seed constituted by a coherent flash in the extreme ultraviolet range provided by an FEL oscillator operating at 12-14 nm. The whole chain of x-ray generation is described by means of start-to-end three-dimensional simulations.
Coherent, high repetition rate tender x-ray free-electron laser seeded by an extreme ultra-violet free-electron laser oscillator
F Broggi;G Ghiringhelli;E Puppin;A Tagliaferri;
2020-01-01
Abstract
A seeded FEL driven by a linac based on super conducting cavities, generating 10(8)-10(10)coherent photons per shot at 2-5 keV with 0.2-1 MHz of repetition rate, can address the need of a source devoted to fine analysis of matter using the linear spectroscopy technique. The seeding scheme described hereafter is a multi-stage cascade upshifting the radiation frequency by a factor 20-40. The x-ray range can be achieved with a seed constituted by a coherent flash in the extreme ultraviolet range provided by an FEL oscillator operating at 12-14 nm. The whole chain of x-ray generation is described by means of start-to-end three-dimensional simulations.| File | Dimensione | Formato | |
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V.Petrillo,...,A.Tagliaferri,...,L.Serafini,Coherent_tender_x-ray_FEL_seeded_by_EUV_FEL_oscillator,NewJ.Phys.22(7),073058(2020).pdf
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