Controlling Electron-Beam Emittance Partitioning for Future X-Ray Light Sources
Abstract
Motivated by the emittance requirements for future light sources, we show how longitudinal-transverse correlations can be introduced to create beams with large emittance asymmetry. This concept generalizes a key aspect of a Flat Beam Transform, which introduces initial correlations among the transverse planes, to systems with initial longitudinal-transverse correlations. We present an eigen-emittance formalism to analyze such systems. We illustrate the approach by analyzing an electron beam emitted from a photoinjector utilizing a laser with a tilted pulse front. This approach can be used to design beam delivery systems that achieve extraordinarily transversely bright electron beams.
Cite
@article{arxiv.1010.1558,
title = {Controlling Electron-Beam Emittance Partitioning for Future X-Ray Light Sources},
author = {Nikolai Yampolsky and Bruce Carlsten and Robert Ryne and Kip Bishofberger and Steven Russell and Alex Dragt},
journal= {arXiv preprint arXiv:1010.1558},
year = {2010}
}
Comments
Corrected typos; extended paragraph on p.2 describing minimum emittance theorem