Ensemble simulations of inertial confinement fusion implosions

Nora, Ryan; Peterson, Jayson Luc; Spears, Brian Keith; Field, John Everett; Brandon, Scott

doi:10.1002/sam.11344

Ensemble simulations of inertial confinement fusion implosions

Journal Article · Wed May 24 00:00:00 EDT 2017 · Statistical Analysis and Data Mining

DOI:https://doi.org/10.1002/sam.11344· OSTI ID:1346130

^[1]; Peterson, Jayson Luc ^[1]; Spears, Brian Keith ^[1]; Field, John Everett ^[1]; Brandon, Scott ^[1]

Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

The achievement of inertial confinement fusion ignition on the National Ignition Facility relies on the collection and interpretation of a limited (and expensive) set of experimental data. These data are therefore supplemented with state-of-the-art multi-dimensional radiation-hydrodynamic simulations to provide a better understanding of implosion dynamics and behavior. We present a relatively large number (~4000) of systematically perturbed 2D simulations to probe our understanding of low-mode fuel and ablator asymmetries seeded by asymmetric illumination. We find that Gaussian process surrogate models are able to predict both the total neutron yield and the degradation in performance due to asymmetries. Furthermore, the surrogates are then applied to simulations containing new sources of degradation to quantify the impact of the new source.

View Accepted Manuscript (DOE)

Research Organization:: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)

Sponsoring Organization:: USDOE

Grant/Contract Number:: AC52-07NA27344

OSTI ID:: 1346130

Report Number(s):: LLNL-PROC--694784

Journal Information:: Statistical Analysis and Data Mining, Journal Name: Statistical Analysis and Data Mining Journal Issue: 4 Vol. 10; ISSN 1932-1864

Publisher:: WileyCopyright Statement

Country of Publication:: United States

Language:: English

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Zonal flow generation in inertial confinement fusion implosions Peterson, J. L.; Humbird, K. D.; Field, J. E. Physics of Plasmas, Vol. 24, Issue 3 https://doi.org/10.1063/1.4977912	journal	March 2017
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Progress of indirect drive inertial confinement fusion in the United States Kline, J. L.; Batha, S. H.; Benedetti, L. R. Nuclear Fusion, Vol. 59, Issue 11 https://doi.org/10.1088/1741-4326/ab1ecf	journal	July 2019

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