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

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 spheric...

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Published in:Physics of Plasmas 1998-05, Vol.5 (5), p.1870-1879
Main Authors: Bradley, D. K., Delettrez, J. A., Epstein, R., Town, R. P. J., Verdon, C. P., Yaakobi, B., Regan, S., Marshall, F. J., Boehly, T. R., Knauer, J. P., Meyerhofer, D. D., Smalyuk, V. A., Seka, W., Haynes, D. A., Gunderson, M., Junkel, G., Hooper, C. F., Bell, P. M., Ognibene, T. J., Lerche, R. A.
Format: Article
Language:English
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Summary: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.
ISSN:1070-664X
1089-7674
DOI:10.1063/1.872858