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Title: Design of a deuterium and tritium-ablator shock ignition target for the National Ignition Facility

Abstract

Shock ignition presents a viable path to ignition and high gain on the National Ignition Facility (NIF). In this paper, we describe the development of the 1D design of 0.5 MJ class, all-deuterium and tritium (fuel and ablator) shock ignition target that should be reasonably robust to Rayleigh-Taylor fluid instabilities, mistiming, and hot electron preheat. The target assumes 'day one' NIF hardware and produces a yield of 31 MJ with reasonable allowances for laser backscatter, absorption efficiency, and polar drive power variation. The energetics of polar drive laser absorption require a beam configuration with half of the NIF quads dedicated to launching the ignitor shock, while the remaining quads drive the target compression. Hydrodynamic scaling of the target suggests that gains of 75 and yields 70 MJ may be possible.

Authors:
; ;  [1]
  1. Lawrence Livermore National Laboratory, 7000 East Ave., Livermore, California 94550 (United States)
Publication Date:
OSTI Identifier:
22068898
Resource Type:
Journal Article
Journal Name:
Physics of Plasmas
Additional Journal Information:
Journal Volume: 19; Journal Issue: 11; Other Information: (c) 2012 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1070-664X
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; 36 MATERIALS SCIENCE; ABSORPTION; BACKSCATTERING; BEAM PROFILES; DEUTERIUM; GAIN; HYDRODYNAMICS; LASER RADIATION; RAYLEIGH-TAYLOR INSTABILITY; TRITIUM; US NATIONAL IGNITION FACILITY

Citation Formats

Terry, Matthew R., Perkins, L. John, and Sepke, Scott M. Design of a deuterium and tritium-ablator shock ignition target for the National Ignition Facility. United States: N. p., 2012. Web. doi:10.1063/1.4765354.
Terry, Matthew R., Perkins, L. John, & Sepke, Scott M. Design of a deuterium and tritium-ablator shock ignition target for the National Ignition Facility. United States. doi:10.1063/1.4765354.
Terry, Matthew R., Perkins, L. John, and Sepke, Scott M. Thu . "Design of a deuterium and tritium-ablator shock ignition target for the National Ignition Facility". United States. doi:10.1063/1.4765354.
@article{osti_22068898,
title = {Design of a deuterium and tritium-ablator shock ignition target for the National Ignition Facility},
author = {Terry, Matthew R. and Perkins, L. John and Sepke, Scott M.},
abstractNote = {Shock ignition presents a viable path to ignition and high gain on the National Ignition Facility (NIF). In this paper, we describe the development of the 1D design of 0.5 MJ class, all-deuterium and tritium (fuel and ablator) shock ignition target that should be reasonably robust to Rayleigh-Taylor fluid instabilities, mistiming, and hot electron preheat. The target assumes 'day one' NIF hardware and produces a yield of 31 MJ with reasonable allowances for laser backscatter, absorption efficiency, and polar drive power variation. The energetics of polar drive laser absorption require a beam configuration with half of the NIF quads dedicated to launching the ignitor shock, while the remaining quads drive the target compression. Hydrodynamic scaling of the target suggests that gains of 75 and yields 70 MJ may be possible.},
doi = {10.1063/1.4765354},
journal = {Physics of Plasmas},
issn = {1070-664X},
number = 11,
volume = 19,
place = {United States},
year = {2012},
month = {11}
}