Wake fields effects in dielectric capillary
Abstract
Plasma wake-field acceleration experiments are performed at the SPARC LAB test facility by using a gas-filled capillary plasma source composed of a dielectric capillary. The electron can reach GeV energy in a few centimeters, with an accelerating gradient orders of magnitude larger than provided by conventional techniques. In this acceleration scheme, wake fields produced by passing electron beams through dielectric structures can determine a strong beam instability that represents an important hurdle towards the capability to focus high-current electron beams in the transverse plane. For these reasons, the estimation of the transverse wakefield amplitudes assumes a fundamental role in the implementation of the plasma wake-field acceleration. In this work, it presented a study to investigate which parameters affect the wake-field formation inside a cylindrical dielectric structure, both the capillary dimensions and the beam parameters, and it is introduced a quantitative evaluation of the longitudinal and transverse electric fields.
Cite
@article{arxiv.1801.04200,
title = {Wake fields effects in dielectric capillary},
author = {A. Biagioni and M. P. Anania and M. Bellaveglia and E. Brentegani and G. Castorina and E. Chiadroni and A. Cianchi and D. Di Giovenale and G. Di Pirro and H. Fares and L. Ficcadenti and F. Filippi and M. Ferrario and A. Mostacci and R. Pompili and J. Scifo and B. Spataro and C. Vaccarezza and F. Villa and A. Zigler},
journal= {arXiv preprint arXiv:1801.04200},
year = {2018}
}