학술논문

High-intensity laser interactions with mass-limited solid targets and implications for fast-ignition experiments on OMEGA EP.
Document Type
Article
Source
Physics of Plasmas. May2007, Vol. 14 Issue 5, p056301. 8p. 8 Graphs.
Subject
*LASER plasmas
*HOT carriers
*ELECTRONS
*IONS
*PARTICLES (Nuclear physics)
Language
ISSN
1070-664X
Abstract
The modeling of petawatt laser-generated hot electrons in mass-limited solid-foil-target interactions at “relativistic” laser intensities is presented using copper targets and parameters motivated by recent experiments at the Rutherford Appleton Laboratory Petawatt and 100-TW facilities [Theobald et al., Phys. Plasmas 13, 043102 (2006)]. Electron refluxing allows a unique determination of the laser-electron conversion efficiency and a test with simulations. Good agreement between experiments and simulations is found for conversion efficiencies of 10%. [ABSTRACT FROM AUTHOR]