FEL2026 - 42nd International Free Electron Laser Conference

Session

Electron Sources (Contributed)

THA

27 Aug 2026, 09:30

14. An alternative method to generate CW electron beams for Hard X-ray FEL (THA01)

Nikhil Bachhawat (Stony Brook University)

27/08/2026, 09:30

Session 7: Electron Sources

Contributed Oral Presentation

The generation of high-quality continuous-wave (CW) electron beams with parameters suitable for hard X-ray free-electron lasers (FELs) has so far not been demonstrated experimentally. Traditionally, photoinjectors operating at very high accelerating gradients are considered necessary to meet the stringent beam-quality requirements of hard X-ray FELs. While high-gradient guns have been...

142. Upstream Photocathode Laser Tailoring for Optimized Longitudinal Phase Space in High-Brightness FELs (THA02)

HAO ZHANG (University of California, Los Angeles)

27/08/2026, 09:50

Session 7: Electron Sources

Contributed Oral Presentation

Generating high-brightness electron beams with optimized longitudinal phase space is essential for driving next-generation free-electron lasers (FELs). However, accelerator-induced distortions often degrade beam quality and lasing performance. Here, we present a novel approach to counteract these effects by manipulating the photoemission laser’s temporal distribution*. By introducing a...