Descripción
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We present experimental and numerical results on intenselaser- pulse-produced fast electron beams transport through aluminum samples, either solid or compressed and heated by laser-induced planar shock propagation. Thanks to absolute K(alpha) yield measurements and its very good agreement with results from numerical simulations, we quantify the collisional and resistive fast electron stopping powers: for electron current densities of 8 * 10(10) A/cm(2) they reach 1.5 keV/mum and 0.8 keV/mum, respectively. For higher current densities up to 10(12)A/cm(2), numerical simulations show resistive and collisional energy losses at comparable levels. Analytical estimations predict the resistive stopping power will be kept on the level of 1 keV/mum for electron current densities of 10(14)A/cm (2), representative of the full-scale conditions in the fast ignition of inertially confined fusion targets. | |
Internacional
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Si |
JCR del ISI
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Si |
Título de la revista
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Physical Review Letters |
ISSN
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0031-9007 |
Factor de impacto JCR
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7,37 |
Información de impacto
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Volumen
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109 |
DOI
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Número de revista
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25 |
Desde la página
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255002 |
Hasta la página
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255002 |
Mes
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DICIEMBRE |
Ranking
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