EPJ Web of Conferences
Volume 59, 2013IFSA 2011 – Seventh International Conference on Inertial Fusion Sciences and Applications
|Number of page(s)||4|
|Section||IV. Implosion Hydrodynamics and Hydro-Instabilities|
|Published online||15 November 2013|
Integrated thermodynamic model for ignition target performance
1 LLNL, Livermore, CA, USA
2 LANL Los Alamos, NM, USA
3 MIT, Cambridge, Ma, USA
4 Laboratory for Laser Energetics, Rochester, NY, USA
Published online: 15 November 2013
We have derived a 3-dimensional synthetic model for NIF implosion conditions, by predicting and optimizing fits to a broad set of x-ray and nuclear diagnostics obtained on each shot. By matching x-ray images, burn width, neutron time-of-flight ion temperature, yield, and fuel ρr, we obtain nearly unique constraints on conditions in the hotspot and fuel in a model that is entirely consistent with the observables. This model allows us to determine hotspot density, pressure, areal density (ρr), total energy, and other ignition-relevant parameters not available from any single diagnostic. This article describes the model and its application to National Ignition Facility (NIF) tritium–hydrogen–deuterium (THD) and DT implosion data, and provides an explanation for the large yield and ρr degradation compared to numerical code predictions.
© Owned by the authors, published by EDP Sciences, 2013
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 2.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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