Beam intensity limitations in future multibend achromat light sources
Abstract
We show that the emittance of fourth-generation 6 GeV machines such as PETRA IV is close to what is theoretically achievable due to beam intensity limitations from space charge and intrabeam scattering. By investigating these limitations, in particular their scaling with the bare lattice emittance and the beam energy, we argue that achieving further significant emittance reduction is only possible by increasing the beam energy. We show further that electron energy increase is also the most efficient path toward higher radiation brightness.
Fields of Study & Subjects
Particle Accelerators and Free-Electron Lasers
Photocathodes and Microchannel Plates
Particle accelerators and beam dynamics
Publication details
- Journal / source
- Physical Review Accelerators and Beams
- Publisher
- American Physical Society (APS)
- Volume
- 29
- Issue
- 2
- Publication date
- 21 January 2026
- Language
- EN