Measurements of core and pusher conditions in surrogate capsule implosions on the OMEGA laser system

Autor:	Mark Gunderson, W. Seka, D. D. Meyerhofer, Susan Regan, C. F. Hooper, D. K. Bradley, F. J. Marshall, T. R. Boehly, C. P. Verdon, Ronald M. Epstein, D. A. Haynes, Perry M. Bell, V. A. Smalyuk, Richard Town, J. A. Delettrez, R. A. Lerche, T. J. Ognibene, J. P. Knauer, B. Yaakobi, Gwyneth Junkel
Rok vydání:	1998
Předmět:	Physics Laser ablation Plasma Condensed Matter Physics Laser Omega law.invention Deuterium Physics::Plasma Physics law Electron temperature Plasma diagnostics Rayleigh–Taylor instability Atomic physics
Zdroj:	Physics of Plasmas. 5:1870-1879
ISSN:	1089-7674 1070-664X
Popis:	Experiments have been carried out on the 60-beam, 30 kJ OMEGA laser system [T. R. Boehly et al., Opt. Commun. 133, 495 (1997)] as part of an integrated program to diagnose all phases of direct-drive capsule implosions. Laser-imprint levels and Rayleigh–Taylor growth rates associated with the spherical implosions have been inferred from planar-foil radiography experiments. In spherical targets, measurements of the combined effects of imprint and unstable growth at the ablation surface have been carried out using the burnthrough technique [J. Delettrez et al., Phys. Plasmas 1, 2342 (1994)]. Target behavior during the deceleration phase has been investigated using a series of surrogate cryogenic capsules in which the main fuel layer is represented by a Ti-doped CH shell and the hot spot is represented by an Ar-doped deuterium fill gas.
Databáze:	OpenAIRE
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