Search Menu
DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information
Search Scholarly Publications

Title: Mitigating the impact of hohlraum asymmetries in National Ignition Facility implosions using capsule shims

Abstract

Here, current indirect drive implosion experiments on the National Ignition Facility (NIF) are believed to be strongly impacted by long wavelength perturbations driven by asymmetries in the hohlraum x-ray flux. To address this perturbation source, active efforts are underway to develop modified hohlraum designs with reduced asymmetry imprint. An alternative strategy, however, is to modify the capsule design to be more resilient to a given amount of hohlraum asymmetry. In particular, the capsule may be deliberately misshaped, or “shimmed,” so as to counteract the expected asymmetries from the hohlraum. Here, the efficacy of capsule shimming to correct the asymmetries in two recent NIF implosion experiments is assessed using two-dimensional radiation hydrodynamics simulations. Despite the highly time-dependent character of the asymmetries and the high convergence ratios of these implosions, simulations suggest that shims could be highly effective at counteracting current asymmetries and result in factors of a few enhancements in neutron yields. For higher compression designs, the yield improvement could be even greater.

Authors:
ORCiD logo [1];  [1];  [1];  [1];  [1];  [1];  [1]
+ Show Author Affiliations
  1. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1438727
Alternate Identifier(s):
OSTI ID: 1268442
Report Number(s):
LLNL-JRNL-691112
Journal ID: ISSN 1070-664X; PHPAEN; TRN: US1900505
Grant/Contract Number:  
AC52-07NA27344
Resource Type:
Accepted Manuscript
Journal Name:
Physics of Plasmas
Additional Journal Information:
Journal Volume: 23; Journal Issue: 7; Journal ID: ISSN 1070-664X
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION

Citation Formats

Clark, D. S., Weber, C. R., Smalyuk, V. A., Robey, H. F., Kritcher, A. L., Milovich, J. L., and Salmonson, J. D. Mitigating the impact of hohlraum asymmetries in National Ignition Facility implosions using capsule shims. United States: N. p., 2016. Web. doi:10.1063/1.4958812.
Copy to clipboard
Clark, D. S., Weber, C. R., Smalyuk, V. A., Robey, H. F., Kritcher, A. L., Milovich, J. L., & Salmonson, J. D. Mitigating the impact of hohlraum asymmetries in National Ignition Facility implosions using capsule shims. United States. https://doi.org/10.1063/1.4958812
Copy to clipboard
Clark, D. S., Weber, C. R., Smalyuk, V. A., Robey, H. F., Kritcher, A. L., Milovich, J. L., and Salmonson, J. D. Fri . "Mitigating the impact of hohlraum asymmetries in National Ignition Facility implosions using capsule shims". United States. https://doi.org/10.1063/1.4958812. https://www.osti.gov/servlets/purl/1438727.
Copy to clipboard
@article{osti_1438727,
title = {Mitigating the impact of hohlraum asymmetries in National Ignition Facility implosions using capsule shims},
author = {Clark, D. S. and Weber, C. R. and Smalyuk, V. A. and Robey, H. F. and Kritcher, A. L. and Milovich, J. L. and Salmonson, J. D.},
abstractNote = {Here, current indirect drive implosion experiments on the National Ignition Facility (NIF) are believed to be strongly impacted by long wavelength perturbations driven by asymmetries in the hohlraum x-ray flux. To address this perturbation source, active efforts are underway to develop modified hohlraum designs with reduced asymmetry imprint. An alternative strategy, however, is to modify the capsule design to be more resilient to a given amount of hohlraum asymmetry. In particular, the capsule may be deliberately misshaped, or “shimmed,” so as to counteract the expected asymmetries from the hohlraum. Here, the efficacy of capsule shimming to correct the asymmetries in two recent NIF implosion experiments is assessed using two-dimensional radiation hydrodynamics simulations. Despite the highly time-dependent character of the asymmetries and the high convergence ratios of these implosions, simulations suggest that shims could be highly effective at counteracting current asymmetries and result in factors of a few enhancements in neutron yields. For higher compression designs, the yield improvement could be even greater.},
doi = {10.1063/1.4958812},
journal = {Physics of Plasmas},
number = 7,
volume = 23,
place = {United States},
year = {Fri Jul 22 00:00:00 EDT 2016},
month = {Fri Jul 22 00:00:00 EDT 2016}
}
Copy to clipboard
Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
https://doi.org/10.1063/1.4958812
Copyright Statement
Other availability
Search WorldCat Search WorldCat to find libraries that may hold this journal
Citation Metrics:
Cited by: 20 works
Citation information provided by
Web of Science
Save / Share:
Export Metadata
Save to My Library
You must Sign In or Create an Account in order to save documents to your library.

Works referenced in this record:

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

Symmetry tuning of a near one-dimensional 2-shock platform for code validation at the National Ignition Facility
journal, April 2016

  • Khan, S. F.; MacLaren, S. A.; Salmonson, J. D.
  • Physics of Plasmas, Vol. 23, Issue 4
  • DOI: 10.1063/1.4947223

First beryllium capsule implosions on the National Ignition Facility
journal, May 2016

  • Kline, J. L.; Yi, S. A.; Simakov, A. N.
  • Physics of Plasmas, Vol. 23, Issue 5
  • DOI: 10.1063/1.4948277

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

A polar-drive–ignition design for the National Ignition Facility
journal, May 2012

  • Collins, T. J. B.; Marozas, J. A.; Anderson, K. S.
  • Physics of Plasmas, Vol. 19, Issue 5
  • DOI: 10.1063/1.3693969

Symmetry tuning via controlled crossed-beam energy transfer on the National Ignition Facility
journal, May 2010

  • Michel, P.; Glenzer, S. H.; Divol, L.
  • Physics of Plasmas, Vol. 17, Issue 5
  • DOI: 10.1063/1.3325733

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

Effect of the mounting membrane on shape in inertial confinement fusion implosions
journal, February 2015

  • Nagel, S. R.; Haan, S. W.; Rygg, J. R.
  • Physics of Plasmas, Vol. 22, Issue 2
  • DOI: 10.1063/1.4907179

Heavy-ion target physics and design in the USA
journal, May 2005

  • Callahan, D. A.; Clark, D. S.; Koniges, A. E.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 544, Issue 1-2
  • DOI: 10.1016/j.nima.2005.01.177

Nuclear imaging of the fuel assembly in ignition experiments
journal, May 2013

  • Grim, G. P.; Guler, N.; Merrill, F. E.
  • Physics of Plasmas, Vol. 20, Issue 5
  • DOI: 10.1063/1.4807291

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

Metrics for long wavelength asymmetries in inertial confinement fusion implosions on the National Ignition Facility
journal, April 2014

  • Kritcher, A. L.; Town, R.; Bradley, D.
  • Physics of Plasmas, Vol. 21, Issue 4
  • DOI: 10.1063/1.4871718

The near vacuum hohlraum campaign at the NIF: A new approach
journal, May 2016

  • Le Pape, S.; Berzak Hopkins, L. F.; Divol, L.
  • Physics of Plasmas, Vol. 23, Issue 5
  • DOI: 10.1063/1.4950843

2D X-Ray Radiography of Imploding Capsules at the National Ignition Facility
journal, May 2014

Integrated modeling of cryogenic layered highfoot experiments at the NIF
journal, May 2016

  • Kritcher, A. L.; Hinkel, D. E.; Callahan, D. A.
  • Physics of Plasmas, Vol. 23, Issue 5
  • DOI: 10.1063/1.4949351

Compensation for Time-Dependent Radiation-Drive Asymmetries in Inertial-Fusion Capsules
journal, October 2007

Polar-direct-drive experiments with contoured-shell targets on OMEGA
journal, January 2016

  • Marshall, F. J.; Radha, P. B.; Bonino, M. J.
  • Physics of Plasmas, Vol. 23, Issue 1
  • DOI: 10.1063/1.4940939

Diagnosing implosion performance at the National Ignition Facility (NIF) by means of neutron spectrometry
journal, March 2013

The National Ignition Facility: Ushering in a new age for high energy density science
journal, April 2009

  • Moses, E. I.; Boyd, R. N.; Remington, B. A.
  • Physics of Plasmas, Vol. 16, Issue 4
  • DOI: 10.1063/1.3116505

Tungsten wire-array Z-pinch experiments at 200 TW and 2 MJ
journal, May 1998

  • Spielman, R. B.; Deeney, C.; Chandler, G. A.
  • Physics of Plasmas, Vol. 5, Issue 5
  • DOI: 10.1063/1.872881

Implosion dynamics measurements at the National Ignition Facility
journal, December 2012

  • Hicks, D. G.; Meezan, N. B.; Dewald, E. L.
  • Physics of Plasmas, Vol. 19, Issue 12
  • DOI: 10.1063/1.4769268

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

Dynamic symmetry of indirectly driven inertial confinement fusion capsules on the National Ignition Facility
journal, May 2014

  • Town, R. P. J.; Bradley, D. K.; Kritcher, A.
  • Physics of Plasmas, Vol. 21, Issue 5
  • DOI: 10.1063/1.4876609

Shock timing experiments on the National Ignition Facility: Initial results and comparison with simulation
journal, April 2012

  • Robey, H. F.; Boehly, T. R.; Celliers, P. M.
  • Physics of Plasmas, Vol. 19, Issue 4
  • DOI: 10.1063/1.3694122

Effects of fuel-capsule shimming and drive asymmetry on inertial-confinement-fusion symmetry and yield
journal, March 2016

  • Séguin, F. H.; Li, C. K.; DeCiantis, J. L.
  • Physics of Plasmas, Vol. 23, Issue 3
  • DOI: 10.1063/1.4943883

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

A strategy for reducing stagnation phase hydrodynamic instability growth in inertial confinement fusion implosions
journal, May 2015

  • Clark, D. S.; Robey, H. F.; Smalyuk, V. A.
  • Physics of Plasmas, Vol. 22, Issue 5
  • DOI: 10.1063/1.4921134

Symmetry tuning for ignition capsules via the symcap technique
journal, May 2011

  • Kyrala, G. A.; Kline, J. L.; Dixit, S.
  • Physics of Plasmas, Vol. 18, Issue 5
  • DOI: 10.1063/1.3574504

Adiabat-shaping in indirect drive inertial confinement fusion
journal, May 2015

  • Baker, K. L.; Robey, H. F.; Milovich, J. L.
  • Physics of Plasmas, Vol. 22, Issue 5
  • DOI: 10.1063/1.4919694

Witness foam‐ball diagnostic for Nova hohlraum time‐dependent drive asymmetry
journal, January 1995

  • Amendt, Peter; Glendinning, S. G.; Hammel, B. A.
  • Review of Scientific Instruments, Vol. 66, Issue 1
  • DOI: 10.1063/1.1146221

Symmetry experiments in gas‐filled hohlraums at NOVA
journal, May 1996

  • Delamater, N. D.; Murphy, T. J.; Hauer, A. A.
  • Physics of Plasmas, Vol. 3, Issue 5
  • DOI: 10.1063/1.871999

Tent-induced perturbations on areal density of implosions at the National Ignition Facilitya)
journal, May 2015

  • Tommasini, R.; Field, J. E.; Hammel, B. A.
  • Physics of Plasmas, Vol. 22, Issue 5
  • DOI: 10.1063/1.4921218

A high-resolution integrated model of the National Ignition Campaign cryogenic layered experiments
journal, May 2012

  • Jones, O. S.; Cerjan, C. J.; Marinak, M. M.
  • Physics of Plasmas, Vol. 19, Issue 5
  • DOI: 10.1063/1.4718595

The high-foot implosion campaign on the National Ignition Facility
journal, May 2014

  • Hurricane, O. A.; Callahan, D. A.; Casey, D. T.
  • Physics of Plasmas, Vol. 21, Issue 5
  • DOI: 10.1063/1.4874330

The Physics of Inertial Fusion
book, January 2004

Cryogenic thermonuclear fuel implosions on the National Ignition Facility
journal, May 2012

  • Glenzer, S. H.; Callahan, D. A.; MacKinnon, A. J.
  • Physics of Plasmas, Vol. 19, Issue 5
  • DOI: 10.1063/1.4719686

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

Modeling and Interpretation of Nova's Symmetry Scaling Data Base
journal, October 1994

Radiation transport between two concentric spheres
journal, December 2000

A hardened gated x-ray imaging diagnostic for inertial confinement fusion experiments at the National Ignition Facility
journal, October 2010

  • Glenn, S.; Koch, J.; Bradley, D. K.
  • Review of Scientific Instruments, Vol. 81, Issue 10
  • DOI: 10.1063/1.3478897

Higher velocity, high-foot implosions on the National Ignition Facility lasera)
journal, May 2015

  • Callahan, D. A.; Hurricane, O. A.; Hinkel, D. E.
  • Physics of Plasmas, Vol. 22, Issue 5
  • DOI: 10.1063/1.4921144

Diamond spheres for inertial confinement fusion
journal, September 2009

Hydrodynamic instabilities in beryllium targets for the National Ignition Facility
journal, September 2014

  • Yi, S. A.; Simakov, A. N.; Wilson, D. C.
  • Physics of Plasmas, Vol. 21, Issue 9
  • DOI: 10.1063/1.4894112

Improved Performance of High Areal Density Indirect Drive Implosions at the National Ignition Facility using a Four-Shock Adiabat Shaped Drive
journal, September 2015

    Sort by:
    [ × clear filter / sort ]

    Works referencing / citing this record:

    P2 asymmetry of Au's M-band flux and its smoothing effect due to high-Z ablator dopants
    journal, March 2017

    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

    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

    Examining the radiation drive asymmetries present in the high foot series of implosion experiments at the National Ignition Facility
    journal, May 2017

    • Pak, A.; Divol, L.; Kritcher, A. L.
    • Physics of Plasmas, Vol. 24, Issue 5
    • DOI: 10.1063/1.4979192

    The physics of long- and intermediate-wavelength asymmetries of the hot spot: Compression hydrodynamics and energetics
    journal, October 2017

    • Bose, A.; Betti, R.; Shvarts, D.
    • Physics of Plasmas, Vol. 24, Issue 10
    • DOI: 10.1063/1.4995250

    Mitigation of X-ray shadow seeding of hydrodynamic instabilities on inertial confinement fusion capsules using a reduced diameter fuel fill-tube
    journal, May 2018

    • MacPhee, A. G.; Smalyuk, V. A.; Landen, O. L.
    • Physics of Plasmas, Vol. 25, Issue 5
    • DOI: 10.1063/1.5025183

    Hydrodynamic instabilities seeded by the X-ray shadow of ICF capsule fill-tubes
    journal, August 2018

    • MacPhee, A. G.; Smalyuk, V. A.; Landen, O. L.
    • Physics of Plasmas, Vol. 25, Issue 8
    • DOI: 10.1063/1.5037816

    Mitigation of cross-beam energy transfer in ignition-scale polar-direct-drive target designs for the National Ignition Facility
    journal, July 2018

    • Collins, T. J. B.; Marozas, J. A.
    • Physics of Plasmas, Vol. 25, Issue 7
    • DOI: 10.1063/1.5039513

    Instability growth seeded by DT density perturbations in ICF capsules
    journal, September 2018

    • Peterson, J. R.; Johnson, B. M.; Haan, S. W.
    • Physics of Plasmas, Vol. 25, Issue 9
    • DOI: 10.1063/1.5040525

    A theoretical model for low-mode asymmetries in ICF implosions
    journal, February 2019

    • Zhang, Cunbo; Yu, Chengxin; Yang, Chen
    • Physics of Plasmas, Vol. 26, Issue 2
    • DOI: 10.1063/1.5082586
      Sort by:
      [ × clear filter / sort ]

      Similar Records in DOE PAGES and OSTI.GOV collections: