Phys. Rev. Lett. 100, 075002 (2008) [4 pages]Enhanced Direct-Drive Implosions with Thin High-Z Ablation LayersReceived 21 August 2007; published 20 February 2008 New direct-drive spherical implosion experiments with deuterium filled plastic shells have demonstrated significant and absolute (2×) improvements in neutron yield when the shells are coated with a very thin layer (∼200–400 Å) 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. © 2008 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.100.075002
DOI:
10.1103/PhysRevLett.100.075002
PACS:
52.57.Fg, 52.38.Dx, 52.38.Mf
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