High-charge collimated and energy-selected laser-driven MeV electron beams produced by magnetic selection
Year: 2026
Type: preprint
Abstract: We have developed a compact passive energy-selector for MeV-range electrons produced by irradiating solid targets by ultra-intense short-pulse lasers. The device allows for generating electron beams with a variable energy spread over a broad range of energies, from tens of keV to tens of MeV. Here we have demonstrated its use by producing electrons from solid targets in the MeV range and with a ~10% bandwidth, thereby compensating the intrinsic broadband nature of the electrons produced from such source. Coupled with a pulsed magnetic field to further compensate the intrinsic large divergence of this source, it allows to produce a highly-collimated beam of narrow-band and ultra-fast electrons, suitable for a wide range of applications, e.g. radiation therapy or time-resolved electron probing.
Source: arXiv (Cornell University)
Institutions: Technion – Israel Institute of Technology, University of Bucharest, Horia Hulubei National Institute for R and D in Physics and Nuclear Engineering, Centre National de la Recherche Scientifique, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Laboratoire pour l'Utilisation des Lasers Intenses, The University of Osaka, Laboratoire National des Champs Magnétiques Intenses, Université Grenoble Alpes, University of Lisbon, Instituto Superior Técnico, École Polytechnique, University of Michigan, Sorbonne Université, National Institute for Fusion Science
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W7204458098