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Progress in 2 mm Glow Discharge Polymer Mandrel Development for NIF
Volume 45 · Number 2 · March 2004 · Pages 165-170
Technical Paper · Target Fabrication
A. Nikroo, J. Bousquet, R. Cook, B. W. McQuillan, R. Paguio, M. Takagi
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All planned National Ignition Facility (NIF) capsule targets except machined beryllium require a glow discharge polymer (GDP) mandrel upon which the ablator is applied. This mandrel, ~2 mm in diameter, must at least meet if not exceed the symmetry and surface finish requirements of the final capsule. Such mandrels are currently produced by the three-step depolymerizable mandrel technique. The quality of the final mandrel depends upon precise optimization and execution of each of the three steps. We had shown previously that fabrication of a mandrel which met the symmetry and surface finish requirements was feasible using this technique. In this paper we will discuss recent progress towards converting this process into a high yield, production scale process.
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