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000459128 1001_ $$0P:(DE-H253)PIP1084569$$aParaskaki, Georgia$$b0
000459128 245__ $$aAdvanced Scheme to Generate MHz, Fully Coherent FEL Pulses at nm Wavelength
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000459128 520__ $$aCurrent FEL development efforts aim at improving the control of coherence at high repetition-rate while keeping the wavelength tunability.  Seeding schemes, like HGHG and EEHG, allow for the generation of fully coherent FEL pulses, but the powerful external seed laser required limits the repetition-rate that can be achieved. In turns, this impacts the average brightness, and the amount of statistics that experiments can do. In order to solve this issue, here we we take a unique approach and discuss the use of one or more optical cavities to seed the electron bunches accelerated in a superconducting linac to modulate their energy. Like standard seeding schemes, the cavity is followed by a dispersive section, which manipulates the longitudinal phase space of the electron bunches, inducing longitudinal density modulations with high harmonic content that undergo the FEL process in an amplifier placed downstream. We will discuss technical requirements for implementing these setups and their operation range based on numerical simulations.
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000459128 7001_ $$0P:(DE-H253)PIP1002602$$aFaatz, Bart$$b1
000459128 7001_ $$0P:(DE-H253)PIP1008868$$aAckermann, Sven$$b2
000459128 7001_ $$0P:(DE-H253)PIP1015071$$aSchaper, Lucas$$b3
000459128 7001_ $$0P:(DE-H253)PIP1006317$$aZemella, Johann$$b4
000459128 7001_ $$0P:(DE-H253)PIP1024674$$aLang, Tino$$b5
000459128 7001_ $$0P:(DE-H253)PIP1000427$$aGeloni, Gianluca$$b6$$eCorresponding author
000459128 7001_ $$0P:(DE-H253)PIP1023734$$aPannek, Fabian$$b7
000459128 770__ $$aOscillator-Amplifier Free Electron Lasers an Outlook to Their Feasibility and Performances
000459128 773__ $$0PERI:(DE-600)2704225-X$$a10.3390/app11136058$$n13$$p6058$$tApplied Sciences$$v11$$x2076-3417$$y2021
000459128 8564_ $$uhttps://www.mdpi.com/2076-3417/11/13/6058
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