Demonstration of radiation symmetry control for inertial confinement fusion in double Z-pinch hohlraums |
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| Authors: | Vesey R A Cuneo M E Bennett G R Porter J L Adams R G Aragon R A Rambo P K Ruggles L E Simpson W W Smith I C |
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| Affiliation: | Sandia National Laboratories, P.O. Box 5800, Albuquerque, New Mexico 87185-1186, USA. ravesey@sandia.gov |
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| Abstract: | Simulations of a double Z-pinch hohlraum, relevant to the high-yield inertial-confinement-fusion concept, predict that through geometry design the time-integrated P2 Legendre mode drive asymmetry can be systematically controlled from positive to negative coefficient values. Studying capsule elongation, recent experiments on Z confirm such control by varying the secondary hohlraum length. Since the experimental trend and optimum length are correctly modeled, confidence is gained in the simulation tools; the same tools predict capsule drive uniformity sufficient for high-yield fusion ignition. |
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