Dynamic Control of Laser Produced Proton Beams
Plasma Physics
2009-11-13 v1 Accelerator Physics
Abstract
The emission characteristics of intense laser driven protons are controlled using ultra-strong (of the order of 10^9 V/m) electrostatic fields varying on a few ps timescale. The field structures are achieved by exploiting the high potential of the target (reaching multi-MV during the laser interaction). Suitably shaped targets result in a reduction in the proton beam divergence, and hence an increase in proton flux while preserving the high beam quality. The peak focusing power and its temporal variation are shown to depend on the target characteristics, allowing for the collimation of the inherently highly divergent beam and the design of achromatic electrostatic lenses.
Cite
@article{arxiv.0710.4014,
title = {Dynamic Control of Laser Produced Proton Beams},
author = {S. Kar and K. Markey and P. T. Simpson and B. Dromey and M. Borghesi and M. Zepf and C. Bellei and S. R. Nagel and S. Kneip and L. Willingale and Z. Najmudin and K. Krushelnick and J. S. Green and P. Norreys and R. J. Clarke and D. Neely and D. C. Carroll and P. McKenna and E. L. Clark},
journal= {arXiv preprint arXiv:0710.4014},
year = {2009}
}
Comments
9 Pages, 5 figures