Direct evidence of strongly inhomogeneous energy deposition in target heating with laser-produced ion beams
Langue
en
Article de revue
Ce document a été publié dans
Physical Review E : Statistical, Nonlinear, and Soft Matter Physics. 2007, vol. 75, p. 065401
American Physical Society
Résumé en anglais
We report on strong nonuniformities in target heating with intense, laser-produced proton beams. The observed inhomogeneity in energy deposition can strongly perturb equation of state EOS measurements with laser-accelerated ...Lire la suite >
We report on strong nonuniformities in target heating with intense, laser-produced proton beams. The observed inhomogeneity in energy deposition can strongly perturb equation of state EOS measurements with laser-accelerated ions which are planned in several laboratories. Interferometric measurements of the target expansion show different expansion velocities on the front and rear surfaces, indicating a strong difference in local temperature. The nonuniformity indicates at an additional heating mechanism, which seems to originate from electrons in the keV range.< Réduire
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