TITLE

Proton spectra from ultraintense laser–plasma interaction with thin foils: Experiments, theory, and simulation

AUTHOR(S)
Allen, M.; Sentoku, Y.; Audebert, P.; Blazevic, A.; Cowan, T.; Fuchs, J.; Gauthier, J. C.; Geissel, M.; Hegelich, M.; Karsch, S.; Morse, E.; Patel, P. K.; Roth, M.
PUB. DATE
August 2003
SOURCE
Physics of Plasmas;Aug2003, Vol. 10 Issue 8, p3283
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
A beam of high energy ions and protons is observed from targets irradiated with intensities up to 5 × 10[sup 19] W/cm². Maximum proton energy is shown to strongly correlate with laser-irradiance on target. Energy spectra from a magnetic spectrometer show a plateau region near the maximum energy cutoff and modulations in the spectrum at approximately 65% of the cutoff energy. Presented two-dimensional particle-in-cell simulations suggest that modulations in the proton spectrum are caused by the presence of multiple heavy-ion species in the expanding plasma.
ACCESSION #
10301751

 

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