Buffered spectrally-peaked proton beams in the relativistic-transparency regime
Plasma Physics
2014-06-16 v1
Abstract
Spectrally-peaked proton beams ( MeV, MeV) have been observed from the interaction of an intense laser ( Wcm) with ultrathin CH foils, as measured by spectrally-resolved full beam profiles. These beams are reproducibly generated for foil thicknesses (5-100 nm), and exhibit narrowing divergence with decreasing target thickness down to for 5 nm. Simulations demonstrate that the narrow energy spread feature is a result of buffered acceleration of protons. Due to their higher charge-to-mass ratio, the protons outrun a carbon plasma driven in the relativistic transparency regime.
Keywords
Cite
@article{arxiv.1406.3540,
title = {Buffered spectrally-peaked proton beams in the relativistic-transparency regime},
author = {N. P. Dover and M. J. V. Streeter and C. A. J. Palmer and H. Ahmed and B. Albertazzi and M. Borghesi and D. C. Carroll and J. Fuchs and R. Heathcote and P. Hilz and K. F. Kakolee and S. Kar and R. Kodama and A. Kon and D. A. MacLellan and P. McKenna and S. R. Nagel and M. Nakatsutsumi and D. Neely and M. M. Notley and R. Prasad and G. Scott and M. Tampo and M. Zepf and J. Schreiber and Z. Najmudin},
journal= {arXiv preprint arXiv:1406.3540},
year = {2014}
}