3 papers
physics.acc-ph2026
Advanced Control of Electron Beams: Tailoring X-ray Production with Programmable Laser Shaping
Jack Hirschman, Randy Lemons, Hao Zhang +23
Leveraging the full scientific capabilities of next-generation high-repetition-rate free-electron lasers requires programmable control over electron-beam properties at their source…
physics.optics2026
Upstream Laser-based Longitudinal Enhancement of Relativistic Photoelectrons
Hao Zhang, Randy Lemons, Jack Hirschman +23
Controlling the longitudinal phase space of high-brightness relativistic electron beams is crucial for advancing a broad spectrum of charged-particle-based instrumentation and scie…
physics.acc-ph2025
Beam Halo Formation via Longitudinal-Transverse Coupling in Continuous-Wave Photoinjectors
Zhen Zhang, Yuantao Ding, David Cesar +3
Beam halo formation poses a critical challenge for high-repetition-rate continuous-wave (CW) free-electron lasers (FELs), directly affecting beam quality and machine protection, as…