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Title:
Shock ignition: an alternative scheme for HiPER
Authors:
Ribeyre, X.; Schurtz, G.; Lafon, M.; Galera, S.; Weber, S.
Affiliation:
AA(Centre Lasers Intenses et Applications, Université Bordeaux 1, CNRS, CEA, Université Bordeaux 1, 351, Cours de la Libération, 33405 Talence, France ), AB(Centre Lasers Intenses et Applications, Université Bordeaux 1, CNRS, CEA, Université Bordeaux 1, 351, Cours de la Libération, 33405 Talence, France ), AC(Centre Lasers Intenses et Applications, Université Bordeaux 1, CNRS, CEA, Université Bordeaux 1, 351, Cours de la Libération, 33405 Talence, France ), AD(Centre Lasers Intenses et Applications, Université Bordeaux 1, CNRS, CEA, Université Bordeaux 1, 351, Cours de la Libération, 33405 Talence, France ), AE(Centre Lasers Intenses et Applications, Université Bordeaux 1, CNRS, CEA, Université Bordeaux 1, 351, Cours de la Libération, 33405 Talence, France )
Publication:
Plasma Physics and Controlled Fusion, Volume 51, Issue 1, article id. 015013, 19 pp. (2009).
Publication Date:
01/2009
Origin:
IOP
DOI:
10.1088/0741-3335/51/1/015013
Bibliographic Code:
2009PPCF...51a5013R

Abstract

Two main paths are now under investigation that aim at thermonuclear ignition of hydrogen isotopes using lasers: central hot spot self-ignition and externally driven fast ignition of preassembled fuel. A third, intermediate, scheme is shock ignition, which combines the simplicity of self-ignition capsules to the hydrodynamic robustness of the fast ignition fuel assembly. This study addresses the potential of shock ignition for the HiPER project and provides a preliminary assessment of possible detrimental effects. Monodimensional simulations are performed to study the robustness of the ignition scheme in terms of shock launching time and laser power. Bidimensional simulations address the sensitivity of shock ignition to irradiation nonuniformity and to low mode asymmetries of the fuel assembly.
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arXiv e-prints