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

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.
NEW JOURNAL OF PHYSICS
free electron laser
oscillator
superconducting linac
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11311/1145196
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