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Title: Adiabat-shaping in indirect drive inertial confinement fusion

Abstract

Adiabat-shaping techniques were investigated in this paper in indirect drive inertial confinement fusion experiments on the National Ignition Facility as a means to improve implosion stability, while still maintaining a low adiabat in the fuel. Adiabat-shaping was accomplished in these indirect drive experiments by altering the ratio of the picket and trough energies in the laser pulse shape, thus driving a decaying first shock in the ablator. This decaying first shock is designed to place the ablation front on a high adiabat while keeping the fuel on a low adiabat. These experiments were conducted using the keyhole experimental platform for both three and four shock laser pulses. This platform enabled direct measurement of the shock velocities driven in the glow-discharge polymer capsule and in the liquid deuterium, the surrogate fuel for a DT ignition target. The measured shock velocities and radiation drive histories are compared to previous three and four shock laser pulses. This comparison indicates that in the case of adiabat shaping the ablation front initially drives a high shock velocity, and therefore, a high shock pressure and adiabat. The shock then decays as it travels through the ablator to pressures similar to the original low-adiabat pulses when itmore » reaches the fuel. Finally, this approach takes advantage of initial high ablation velocity, which favors stability, and high-compression, which favors high stagnation pressures.« less

Authors:
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+ Show Author Affiliations
  1. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  2. General Atomics, San Diego, CA (United States)
Publication Date:
Research Org.:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1253682
Alternate Identifier(s):
OSTI ID: 1228616
Report Number(s):
LLNL-JRNL-666536
Journal ID: ISSN 1070-664X
Grant/Contract Number:  
AC52-07NA27344
Resource Type:
Accepted Manuscript
Journal Name:
Physics of Plasmas
Additional Journal Information:
Journal Volume: 22; Journal Issue: 5; Journal ID: ISSN 1070-664X
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; velocity measurement; hohlraum; laser ablation; x-rays; x-ray lasers

Citation Formats

Baker, K. L., Robey, H. F., Milovich, J. L., Jones, O. S., Smalyuk, V. A., Casey, D. T., MacPhee, A. G., Pak, A., Celliers, P. M., Clark, D. S., Landen, O. L., Peterson, J. L., Berzak-Hopkins, L. F., Weber, C. R., Haan, S. W., Döppner, T. D., Dixit, S., Giraldez, E., Hamza, A. V., Jancaitis, K. S., Kroll, J. J., Lafortune, K. N., MacGowan, B. J., Moody, J. D., Nikroo, A., and Widmayer, C. C. Adiabat-shaping in indirect drive inertial confinement fusion. United States: N. p., 2015. Web. doi:10.1063/1.4919694.
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Baker, K. L., Robey, H. F., Milovich, J. L., Jones, O. S., Smalyuk, V. A., Casey, D. T., MacPhee, A. G., Pak, A., Celliers, P. M., Clark, D. S., Landen, O. L., Peterson, J. L., Berzak-Hopkins, L. F., Weber, C. R., Haan, S. W., Döppner, T. D., Dixit, S., Giraldez, E., Hamza, A. V., Jancaitis, K. S., Kroll, J. J., Lafortune, K. N., MacGowan, B. J., Moody, J. D., Nikroo, A., & Widmayer, C. C. Adiabat-shaping in indirect drive inertial confinement fusion. United States. https://doi.org/10.1063/1.4919694
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Baker, K. L., Robey, H. F., Milovich, J. L., Jones, O. S., Smalyuk, V. A., Casey, D. T., MacPhee, A. G., Pak, A., Celliers, P. M., Clark, D. S., Landen, O. L., Peterson, J. L., Berzak-Hopkins, L. F., Weber, C. R., Haan, S. W., Döppner, T. D., Dixit, S., Giraldez, E., Hamza, A. V., Jancaitis, K. S., Kroll, J. J., Lafortune, K. N., MacGowan, B. J., Moody, J. D., Nikroo, A., and Widmayer, C. C. Tue . "Adiabat-shaping in indirect drive inertial confinement fusion". United States. https://doi.org/10.1063/1.4919694. https://www.osti.gov/servlets/purl/1253682.
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@article{osti_1253682,
title = {Adiabat-shaping in indirect drive inertial confinement fusion},
author = {Baker, K. L. and Robey, H. F. and Milovich, J. L. and Jones, O. S. and Smalyuk, V. A. and Casey, D. T. and MacPhee, A. G. and Pak, A. and Celliers, P. M. and Clark, D. S. and Landen, O. L. and Peterson, J. L. and Berzak-Hopkins, L. F. and Weber, C. R. and Haan, S. W. and Döppner, T. D. and Dixit, S. and Giraldez, E. and Hamza, A. V. and Jancaitis, K. S. and Kroll, J. J. and Lafortune, K. N. and MacGowan, B. J. and Moody, J. D. and Nikroo, A. and Widmayer, C. C.},
abstractNote = {Adiabat-shaping techniques were investigated in this paper in indirect drive inertial confinement fusion experiments on the National Ignition Facility as a means to improve implosion stability, while still maintaining a low adiabat in the fuel. Adiabat-shaping was accomplished in these indirect drive experiments by altering the ratio of the picket and trough energies in the laser pulse shape, thus driving a decaying first shock in the ablator. This decaying first shock is designed to place the ablation front on a high adiabat while keeping the fuel on a low adiabat. These experiments were conducted using the keyhole experimental platform for both three and four shock laser pulses. This platform enabled direct measurement of the shock velocities driven in the glow-discharge polymer capsule and in the liquid deuterium, the surrogate fuel for a DT ignition target. The measured shock velocities and radiation drive histories are compared to previous three and four shock laser pulses. This comparison indicates that in the case of adiabat shaping the ablation front initially drives a high shock velocity, and therefore, a high shock pressure and adiabat. The shock then decays as it travels through the ablator to pressures similar to the original low-adiabat pulses when it reaches the fuel. Finally, this approach takes advantage of initial high ablation velocity, which favors stability, and high-compression, which favors high stagnation pressures.},
doi = {10.1063/1.4919694},
journal = {Physics of Plasmas},
number = 5,
volume = 22,
place = {United States},
year = {Tue May 05 00:00:00 EDT 2015},
month = {Tue May 05 00:00:00 EDT 2015}
}
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https://doi.org/10.1063/1.4919694
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Works referenced in this record:

The effects of early time laser drive on hydrodynamic instability growth in National Ignition Facility implosions
journal, September 2014

  • Peterson, J. L.; Clark, D. S.; Masse, L. P.
  • Physics of Plasmas, Vol. 21, Issue 9
  • DOI: 10.1063/1.4896708

Progress towards ignition on the National Ignition Facility
journal, July 2013

  • Edwards, M. J.; Patel, P. K.; Lindl, J. D.
  • Physics of Plasmas, Vol. 20, Issue 7
  • DOI: 10.1063/1.4816115

Line-imaging velocimeter for shock diagnostics at the OMEGA laser facility
journal, November 2004

  • Celliers, P. M.; Bradley, D. K.; Collins, G. W.
  • Review of Scientific Instruments, Vol. 75, Issue 11
  • DOI: 10.1063/1.1807008

Measurements of the effects of the intensity pickets on laser imprinting for direct-drive, adiabat-shaping designs on OMEGA
journal, March 2007

  • Smalyuk, V. A.; Goncharov, V. N.; Anderson, K. S.
  • Physics of Plasmas, Vol. 14, Issue 3
  • DOI: 10.1063/1.2715550

Fuel gain exceeding unity in an inertially confined fusion implosion
journal, February 2014

  • Hurricane, O. A.; Callahan, D. A.; Casey, D. T.
  • Nature, Vol. 506, Issue 7488
  • DOI: 10.1038/nature13008

Laser interferometer for measuring high velocities of any reflecting surface
journal, November 1972

  • Barker, L. M.; Hollenbach, R. E.
  • Journal of Applied Physics, Vol. 43, Issue 11
  • DOI: 10.1063/1.1660986

Radiative heating of low- Z solid foils by laser-generated x rays
journal, December 1995

Precision equation-of-state measurements on National Ignition Facility ablator materials from 1 to 12 Mbar using laser-driven shock waves
journal, May 2012

  • Barrios, M. A.; Boehly, T. R.; Hicks, D. G.
  • Journal of Applied Physics, Vol. 111, Issue 9
  • DOI: 10.1063/1.4712050

Theory of laser-induced adiabat shaping in inertial fusion implosions: The relaxation method
journal, April 2005

  • Betti, R.; Anderson, K.; Knauer, J.
  • Physics of Plasmas, Vol. 12, Issue 4
  • DOI: 10.1063/1.1856481

Onset of Hydrodynamic Mix in High-Velocity, Highly Compressed Inertial Confinement Fusion Implosions
journal, August 2013

A survey of pulse shape options for a revised plastic ablator ignition design
journal, November 2014

  • Clark, D. S.; Milovich, J. L.; Hinkel, D. E.
  • Physics of Plasmas, Vol. 21, Issue 11
  • DOI: 10.1063/1.4901572

X-ray driven implosions at ignition relevant velocities on the National Ignition Facility
journal, May 2013

  • Meezan, N. B.; MacKinnon, A. J.; Hicks, D. G.
  • Physics of Plasmas, Vol. 20, Issue 5
  • DOI: 10.1063/1.4803915

Equations of state for hydrogen and deuterium.
report, December 2003

The first measurements of soft x-ray flux from ignition scale Hohlraums at the National Ignition Facility using DANTE (invited)
journal, October 2010

  • Kline, J. L.; Widmann, K.; Warrick, A.
  • Review of Scientific Instruments, Vol. 81, Issue 10
  • DOI: 10.1063/1.3491032

Reduced instability growth with high-adiabat high-foot implosions at the National Ignition Facility
journal, July 2014

Precision Shock Tuning on the National Ignition Facility
journal, May 2012

Equation of state of CH 1.36 : First-principles molecular dynamics simulations and shock-and-release wave speed measurements
journal, September 2012

Theory of laser-induced adiabat shaping in inertial fusion implosions: The decaying shock
journal, November 2003

  • Anderson, K.; Betti, R.
  • Physics of Plasmas, Vol. 10, Issue 11
  • DOI: 10.1063/1.1616559

Point design targets, specifications, and requirements for the 2010 ignition campaign on the National Ignition Facility
journal, May 2011

  • Haan, S. W.; Lindl, J. D.; Callahan, D. A.
  • Physics of Plasmas, Vol. 18, Issue 5
  • DOI: 10.1063/1.3592169

Dante soft x-ray power diagnostic for National Ignition Facility
journal, October 2004

  • Dewald, E. L.; Campbell, K. M.; Turner, R. E.
  • Review of Scientific Instruments, Vol. 75, Issue 10
  • DOI: 10.1063/1.1788872

Shock timing measurements and analysis in deuterium-tritium-ice layered capsule implosions on NIF
journal, February 2014

  • Robey, H. F.; Celliers, P. M.; Moody, J. D.
  • Physics of Plasmas, Vol. 21, Issue 2
  • DOI: 10.1063/1.4863975

Instability of the interface of two gases accelerated by a shock wave
journal, January 1972

Improved performance of direct-drive inertial confinement fusion target designs with adiabat shaping using an intensity picket
journal, May 2003

  • Goncharov, V. N.; Knauer, J. P.; McKenty, P. W.
  • Physics of Plasmas, Vol. 10, Issue 5
  • DOI: 10.1063/1.1562166

The instability of liquid surfaces when accelerated in a direction perpendicular to their planes. I
journal, March 1950

  • Taylor, Geoffrey Ingram
  • Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, Vol. 201, Issue 1065, p. 192-196
  • DOI: 10.1098/rspa.1950.0052

High-Adiabat High-Foot Inertial Confinement Fusion Implosion Experiments on the National Ignition Facility
journal, February 2014

Taylor instability in shock acceleration of compressible fluids
journal, May 1960

  • Richtmyer, Robert D.
  • Communications on Pure and Applied Mathematics, Vol. 13, Issue 2
  • DOI: 10.1002/cpa.3160130207

Differential ablator-fuel adiabat tuning in indirect-drive implosions
journal, March 2015

Theory of the Ablative Richtmyer-Meshkov Instability
journal, March 1999

Three-dimensional HYDRA simulations of National Ignition Facility targets
journal, May 2001

  • Marinak, M. M.; Kerbel, G. D.; Gentile, N. A.
  • Physics of Plasmas, Vol. 8, Issue 5
  • DOI: 10.1063/1.1356740
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    Works referencing / citing this record:

    Inertial-confinement fusion with lasers
    journal, May 2016

    • Betti, R.; Hurricane, O. A.
    • Nature Physics, Vol. 12, Issue 5
    • DOI: 10.1038/nphys3736

    Analysis of NIF experiments with the minimal energy implosion model
    journal, August 2015

    • Cheng, B.; Kwan, T. J. T.; Wang, Y. M.
    • Physics of Plasmas, Vol. 22, Issue 8
    • DOI: 10.1063/1.4928093

    Stabilization of high-compression, indirect-drive inertial confinement fusion implosions using a 4-shock adiabat-shaped drive
    journal, August 2015

    • MacPhee, A. G.; Peterson, J. L.; Casey, D. T.
    • Physics of Plasmas, Vol. 22, Issue 8
    • DOI: 10.1063/1.4928909

    Three-dimensional simulations of low foot and high foot implosion experiments on the National Ignition Facility
    journal, March 2016

    • Clark, D. S.; Weber, C. R.; Milovich, J. L.
    • Physics of Plasmas, Vol. 23, Issue 5
    • DOI: 10.1063/1.4943527

    Performance of indirectly driven capsule implosions on the National Ignition Facility using adiabat-shaping
    journal, May 2016

    • Robey, H. F.; Smalyuk, V. A.; Milovich, J. L.
    • Physics of Plasmas, Vol. 23, Issue 5
    • DOI: 10.1063/1.4944821

    Experimental results of radiation-driven, layered deuterium-tritium implosions with adiabat-shaped drives at the National Ignition Facility
    journal, October 2016

    • Smalyuk, V. A.; Robey, H. F.; Döppner, T.
    • Physics of Plasmas, Vol. 23, Issue 10
    • DOI: 10.1063/1.4964919

    Effects of preheat and mix on the fuel adiabat of an imploding capsule
    journal, December 2016

    • Cheng, B.; Kwan, T. J. T.; Wang, Y. M.
    • Physics of Plasmas, Vol. 23, Issue 12
    • DOI: 10.1063/1.4971814

    Improving ICF implosion performance with alternative capsule supports
    journal, May 2017

    • Weber, C. R.; Casey, D. T.; Clark, D. S.
    • Physics of Plasmas, Vol. 24, Issue 5
    • DOI: 10.1063/1.4977536

    Hydro-instability growth of perturbation seeds from alternate capsule-support strategies in indirect-drive implosions on National Ignition Facility
    journal, October 2017

    • Martinez, D. A.; Smalyuk, V. A.; MacPhee, A. G.
    • Physics of Plasmas, Vol. 24, Issue 10
    • DOI: 10.1063/1.4995568

    Review of hydro-instability experiments with alternate capsule supports in indirect-drive implosions on the National Ignition Facility
    journal, July 2018

    • Smalyuk, V. A.; Robey, H. F.; Alday, C. L.
    • Physics of Plasmas, Vol. 25, Issue 7
    • DOI: 10.1063/1.5042081
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