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Start Over Author "Crippen, J. W." Topic inertial confinement fusion
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1. Mitigation of X-ray shadow seeding of hydrodynamic instabilities on inertial confinement fusion capsules using a reduced diameter fuel fill-tube.

Author

MacPhee, A. G., Smalyuk, V. A., Landen, O. L., Weber, C. R., Robey, H. F., Alfonso, E. L., Biener, J., Bunn, T., Crippen, J. W., Farrell, M., Felker, S., Field, J. E., Hsing, W. W., Kong, C., Milovich, J., Moore, A., Nikroo, A., Rice, N., Stadermann, M., and Wild, C.

Subjects
INERTIAL confinement fusion, HYDRODYNAMICS, X-rays, NUCLEAR fuels, TUBES
Abstract

We report a reduced X-ray shadow imprint of hydrodynamic instabilities on the high-density carbon ablator surface of inertial confinement fusion (ICF) capsules using a reduced diameter fuel fill tube on the National Ignition Facility (NIF). The perturbation seed mass from hydrodynamic instabilities was reduced by approximately an order of magnitude by reducing both the diameter and wall thickness of the fill tube by ∼2×, consistent with analytical estimates. This work demonstrates a successful mitigation strategy for engineered features for ICF implosions on the NIF. [ABSTRACT FROM AUTHOR]

Published
2018
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