2015/04/29 by J. P. Palastro, Palastro, J. P., D. Kaganovich +3
Engineering · Physics and Astronomy · #Accelerator Physics (physics.acc-ph) #FOS: Physical sciences #Gyrotron and Vacuum Electronics Research #Laser-Plasma Interactions and Diagnostics #Particle accelerators and beam dynamics #Plasma Physics (physics.plasm-ph) #physics.acc-ph #physics.plasm-ph
paper · pdf · doi:10.48550/arxiv.1504.07965
arxiv created 2015/04/29 · openalex publication_date 2015/04/29 · arxiv updated 2015/05/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
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.