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REV3 Update of Requirements for NIF Ignition Targets

S. W. Haan, D. A. Callahan, M. J. Edwards, B. A. Hammel, D. D. Ho, O. S. Jones, J. D. Lindl, B. J. MacGowan, M. M. Marinak, D. H. Munro, S. M. Pollaine, J. D. Salmonson, B. K. Spears, L. J. Suter

Fusion Science and Technology / Volume 55 / Number 3 / Pages 227-232

April 2009

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Targets intended to produce ignition on the National Ignition Facility are being simulated, and the simulations are used to set specifications for target fabrication. Recent design work has focused on refining designs that use 1.3 MJ of laser energy, with an ablator of Be(Cu) or CH(Ge). The mainline hohlraum design now has a He-H gas fill and a wall of U-Au layers. The emphasis in this paper is on changes in the requirements over the last year. Complete tables of specifications are regularly updated for all of the targets. All the specifications are rolled together into an error budget indicating adequate margin for ignition with all of the designs.

 
 
 
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