High-charge collimated and energy-selected laser-driven MeV electron beams produced by magnetic selection
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.
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BibTeX
@misc{cohen2026highcharge,
title = {{High-charge collimated and energy-selected laser-driven MeV electron beams produced by magnetic selection}},
author = {I. Cohen and I. Slabu and Q. Peysson and S. Dorard and Y. Abe and J. Béard and T. Moraine and S. N. Chen and A. Chessa and K. Iida and P. Kempski and Y. Kuramitsu and H. Kusano and F. Nikaido and M. Ruszkowski and K. Sakai and N. Tamaki and O. Tesileanu and J. Fuchs},
howpublished = {arXiv},
year = {2026},
month = sep,
doi = {10.48550/arxiv.2608.25020},
eprint = {2608.25020},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2608.25020},
}
RIS
TY - UNPB
TI - High-charge collimated and energy-selected laser-driven MeV electron beams produced by magnetic selection
AU - I. Cohen
AU - I. Slabu
AU - Q. Peysson
AU - S. Dorard
AU - Y. Abe
AU - J. Béard
AU - T. Moraine
AU - S. N. Chen
AU - A. Chessa
AU - K. Iida
AU - P. Kempski
AU - Y. Kuramitsu
AU - H. Kusano
AU - F. Nikaido
AU - M. Ruszkowski
AU - K. Sakai
AU - N. Tamaki
AU - O. Tesileanu
AU - J. Fuchs
PY - 2026
DA - 2026/09/04
PB - arXiv
DO - 10.48550/arxiv.2608.25020
UR - https://arxiv.org/abs/2608.25020
AB - 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.
ER -