23–28 Aug 2026
America/Los_Angeles timezone

An x-ray regenerative amplifier free-electron laser with a step-tapered undulator*

TUP05
25 Aug 2026, 16:00
2h
Poster Presentation Session 6: FEL Oscillators and Infrared FEL (IR-FEL) Tuesday Poster Session

Speaker

Dr Henry Freund (University of Maryland, College Park)

Description

Regenerative amplifier x-ray free-electron lasers constitute alternative configurations for fourth generation light sources which are typically operated in self-amplified spontaneous emission (SASE) mode. However, SASE exhibits relatively large fluctuations in the power and spectral properties from shot to shot, whereas XRAFELs provide a much more stable source of hard x-ray photons. Here, we study the performance of an x-ray cavity under consideration at the Stanford Linear Accelerator Facility using both uniform and step-tapered undulators with either transmissive or hole out-coupling.

Footnotes

*This work was supported by the United States Department of Energy under contract DE-SC0024397.

Funding Agency

Department of Energy under contract DE-SC0024397

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Author

Dr Henry Freund (University of Maryland, College Park)

Co-authors

Patrick O'Shea (University of Maryland, College Park) Petrus van der Slot (University of Twente)

Presentation materials

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