FEL2024 - 41st International Free Electron Laser Conference

Session

Novel acceleration and FEL concepts

WEC

21 Aug 2024, 14:30

POLIN

Conveners

Novel acceleration and FEL concepts: Session-8

• Hideaki Ohgaki (Kyoto University)

187. Plasma accelerating modules developments for the EuPRAXIA FEL user facility (WECI01)

Angelo Biagioni (Istituto Nazionale di Fisica Nucleare)

21/08/2024, 14:30

Novel acceleration and FEL concepts

Invited Oral Presentation

The EuPRAXIA project offers the opportunity to produce free-electron laser radiations from accelerated electron beams using plasma technology in compact structures. Furthermore, the FELs radiations, in turn, represent a formidable tool to investigate matter at the sub-atomic level by generating coherent light pulses with sub-ångström wavelengths and sub-femtosecond durations. Achieving such a...

257. Reduction of the electron beam divergence of laser wakefield-accelerators by integrated plasma lenses (WECI02)

Dr Arie Irman (Helmholtz-Zentrum Dresden-Rossendorf)

21/08/2024, 15:00

Novel acceleration and FEL concepts

Invited Oral Presentation

We report on electron-beam collimation using a passive plasma lens*, integrated directly into a laser wakefield-accelerator stage operating in the high-charge regime. The lens is created by the reshaping of the gas-density profile of a supersonic jet at the beam’s exit side. It reduces the beam’s divergence by a factor of 2 to below 1 mrad (rms), while preserving the total charge of 170 pC and...

198. Energy and brightness-boosted electron beams from plasma-based accelerators (WECC04)

Dr A. Fahim Habib (University of Strathclyde)

21/08/2024, 15:30

Novel acceleration and FEL concepts

Contributed Oral Presentation

Recent advancements in plasma-based accelerators have ignited "the race for wakefield-driven FELs" [1]. However, FELs at soft and hard X-ray wavelengths require electron beams with dramatically improved 6D brightness. The author presents comprehensive strategies towards generating ultra-high 6D brightness electron beams in beam-driven plasma wakefield acceleration (PWFA). These ultra-high 6D...

225. Experimental efforts towards non-collinear superradiant Compton scattering (WECC05)

Brian Schaap (Eindhoven University of Technology)

21/08/2024, 15:55

Novel acceleration and FEL concepts

Contributed Oral Presentation

Inverse Compton scattering by relativistic electrons off intense laser pulses provides an attractive option for compact radiation sources in the (soft) X-ray spectral range. Tunability of the radiation wavelength is greatly increased by varying the crossing angle in the interaction. On the other hand, the radiated power from these sources is typically rather low, limiting the range of...