Mapping the X-Ray Emission Region in a Laser-Plasma Accelerator
Plasma Physics
2015-03-19 v2 Accelerator Physics
Abstract
The x-ray emission in laser-plasma accelerators can be a powerful tool to understand the physics of relativistic laser-plasma interaction. It is shown here that the mapping of betatron x-ray radiation can be obtained from the x-ray beam profile when an aperture mask is positioned just beyond the end of the emission region. The influence of the plasma density on the position and the longitudinal profile of the x-ray emission is investigated and compared to particle-in-cell simulations. The measurement of the x-ray emission position and length provides insight on the dynamics of the interaction, including the electron self-injection region, possible multiple injection, and the role of the electron beam driven wakefield.
Keywords
Cite
@article{arxiv.1104.2451,
title = {Mapping the X-Ray Emission Region in a Laser-Plasma Accelerator},
author = {S. Corde and C. Thaury and K. Ta Phuoc and A. Lifschitz and G. Lambert and J. Faure and O. Lundh and E. Benveniste and A. Ben-Ismail and L. Arantchuk and A. Marciniak and A. Stordeur and P. Brijesh and A. Rousse and A. Specka and V. Malka},
journal= {arXiv preprint arXiv:1104.2451},
year = {2015}
}
Comments
5 pages, 4 figures