Brightness limits of electron sources and storage rings
A bright beam packs many electrons into a small, nearly parallel, short package, which decides how sharp an x-ray source or electron camera can be. Limits come from the cathode, from the electrons pushing each other apart, and from collisions inside the beam.
Why it matters
Brightness sets the performance of x-ray FELs, ultrafast electron diffraction and diffraction-limited synchrotron light sources.
Review
P. Musumeci, J. Giner Navarro, J. B. Rosenzweig et al., Advances in bright electron sources, Nuclear Instruments and Methods in Physics Research A, 2018. https://doi.org/10.1016/j.nima.2018.03.019 reference checked
See also
- More general than Minimum intrinsic emittance of photocathodes
Timestamp record
- Signed record
- 3311684a3644…
- Public log
- Entry 62, in checkpoint 2,123
- In the log by
- Block 969,698, 2026-10-03
This text was in the PubPhys log by that date. The date says nothing about when the problem was first posed.