Enhanced betatron X-rays from axially modulated plasma wakefields
Plasma Physics
2015-05-01 v1 Accelerator Physics
Abstract
In the cavitation regime of plasma-based accelerators, a population of high-energy electrons tailing the driver can undergo betatron motion. The motion results in X-ray emission, but the brilliance and photon energy are limited by the electrons' initial transverse coordinate. To overcome this, we exploit parametrically unstable betatron motion in a cavitated, axially modulated plasma. Theory and simulations are presented showing that the unstable oscillations increase both the total X-ray energy and average photon energy.
Cite
@article{arxiv.1504.07965,
title = {Enhanced betatron X-rays from axially modulated plasma wakefields},
author = {J. P. Palastro and D. Kaganovich and D. Gordon},
journal= {arXiv preprint arXiv:1504.07965},
year = {2015}
}