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Title: Three-dimensional modeling and hydrodynamic scaling of National Ignition Facility implosions

Journal Article · · Physics of Plasmas
DOI:https://doi.org/10.1063/1.5091449· OSTI ID:1756731

The goal of an inertially confined, igniting plasma on the National Ignition Facility (NIF) [M. L. Spaeth, Fusion Sci. Technol. 69, 25 (2016)] remains elusive. However, there is a growing understanding of the factors that appear to be limiting current implosion performance. And with this understanding, the question naturally arises: What conditions will ultimately be required to achieve ignition, either by continuing to improve the quality of current implosions, or by hydrodynamically scaling those implosions to larger driver energies on some future facility? Given the complexity of NIF implosions, answering this question must rely heavily on sophisticated numerical simulations. In particular, those simulations must respect the three-dimensionality of real NIF implosions and also resolve the wide range of scales for the many perturbation sources that degrade them. This prospectus article reviews the current state of detailed modeling of NIF implosions, the scaling to ignition from recent experiments that that modeling implies, and areas for future improvements in modeling technique that could increase understanding and further enhance predictive capabilities. Furthermore, given the uncertainties inherent in any extrapolation, particularly for a process as nonlinear as ignition, there will be no definitive answer on the requirements for ignition until it is actually demonstrated experimentally. However, with continuing improvements in modeling technique and a growing experience base from NIF, the requirements for ignition are becoming clearer.

Research Organization:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
AC52-07NA27344
OSTI ID:
1756731
Alternate ID(s):
OSTI ID: 1515612
Report Number(s):
LLNL-JRNL-766564; 956605; TRN: US2205671
Journal Information:
Physics of Plasmas, Vol. 26, Issue 5; ISSN 1070-664X
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 62 works
Citation information provided by
Web of Science

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Cited By (6)

Mixing in ICF implosions on the National Ignition Facility caused by the fill-tube journal March 2020
First experiments on Revolver shell collisions at the OMEGA laser journal July 2019
Analysis of NIF scaling using physics informed machine learning journal January 2020
Announcement: The 2018 Ronald C. Davidson Award for Plasma Physics journal May 2019
First experiments on Revolver shell collisions at the OMEGA Laser text January 2019
Making inertial confinement fusion models more predictive journal August 2019

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