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Phys Rev Lett. 2008 Feb 22;100(7):075002. doi: 10.1103/PhysRevLett.100.075002. Epub 2008 Feb 20.

Enhanced direct-drive implosions with thin high-Z ablation layers.

Physical review letters

Andrew N Mostovych, Denis G Colombant, Max Karasik, James P Knauer, Andrew J Schmitt, James L Weaver

Affiliations

  1. Enterprise Sciences, Inc., Silver Spring, Maryland 20905, USA.

PMID: 18352563 DOI: 10.1103/PhysRevLett.100.075002

Abstract

New direct-drive spherical implosion experiments with deuterium filled plastic shells have demonstrated significant and absolute (2x) improvements in neutron yield when the shells are coated with a very thin layer ( approximately 200-400 A) of high-Z material such as palladium. This improvement is interpreted as resulting from increased stability of the imploding shell. These results provide for a possible path to control laser imprint and stability in laser-fusion-energy target designs.

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