Slice Emittance Preservation and Focus Control in a Passive Plasma Lens
Accelerator Physics
2026-03-09 v2 Plasma Physics
Abstract
Strong, symmetrically focusing plasma lenses are promising for accommodating the small beams associated with plasma-based accelerators and collider final foci. However, while focusing with active and passive plasma lenses has been experimentally demonstrated, compatibility with high-brightness beams relevant for applications has not. In this Letter, we show experimentally that passive plasma lenses can preserve free-electron-laser-quality slice emittance while focusing two orders of magnitude more strongly than quadrupole magnets, and that the focal parameters can be controlled.
Cite
@article{arxiv.2509.08420,
title = {Slice Emittance Preservation and Focus Control in a Passive Plasma Lens},
author = {J. Björklund Svensson and J. Beinortaitė and L. Boulton and B. Foster and J. M. Garland and P. González Caminal and M. Huck and H. Jones and A. Kanekar and G. Loisch and J. Osterhoff and F. Peña and S. Schröder and M. Thévenet and S. Wesch and M. Wing and J. C. Wood and R. D'Arcy},
journal= {arXiv preprint arXiv:2509.08420},
year = {2026}
}
Comments
10 pages, 7 figures