Direct evidence of strongly inhomogeneous energy deposition in target heating with laser-produced ion beams.
Phys Rev E Stat Nonlin Soft Matter Phys
; 75(6 Pt 2): 065401, 2007 Jun.
Article
em En
| MEDLINE
| ID: mdl-17677318
ABSTRACT
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.
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Base de dados:
MEDLINE
Idioma:
En
Ano de publicação:
2007
Tipo de documento:
Article