Mixing in ICF implosions on the National Ignition Facility caused by the fill-tube

Weber, C. R.; Clark, D. S.; Pak, A.; Alfonso, N.; Bachmann, B.; Berzak Hopkins, L. F.; Bunn, T.; Crippen, J.; Divol, L.; Dittrich, T.; Kritcher, A. L.; Landen, O. L.; Le Pape, S.; MacPhee, A. G.; Marley, E.; Masse, L. P.; Milovich, J. L.; Nikroo, A.; Patel, P. K.; Pickworth, L. A.; Rice, N.; Smalyuk, V. A.; Stadermann, M.

doi:10.1063/1.5125599

Mixing in ICF implosions on the National Ignition Facility caused by the fill-tube

Journal Article · Wed Mar 04 00:00:00 EST 2020 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.5125599· OSTI ID:1669246

^[1]; ^[1]; Pak, A. ^[1]; Alfonso, N. ^[2]; ^[1]; ^[1]; Bunn, T. ^[1]; ^[2]; Divol, L. ^[1]; Dittrich, T. ^[1]; Kritcher, A. L. ^[1]; ^[1]; Le Pape, S. ^[3]; ^[1]; Marley, E. ^[1]; ^[1]; Milovich, J. L. ^[1]; ^[1]; ^[1]; ^[1] more »

Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
General Atomics, San Diego, CA (United States)
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); LULI-CNRS Ecole Polytechnique, Univ. Paris-Saclay, Palaiseau (France)

The micrometer-scale tube that fills capsules with thermonuclear fuel in inertial confinement fusion experiments at the National Ignition Facility is also one of the implosion's main degradation sources. It seeds a perturbation that injects the ablator material into the center, radiating away some of the hot-spot energy. This paper discusses how the perturbation arises in experiments using high-density carbon ablators and how the ablator mix interacts once it enters the hot-spot. Both modeling and experiments show an in-flight areal-density perturbation and localized x-ray emission at stagnation from the fill-tube. Simulations suggest that the fill-tube is degrading an otherwise 1D implosion by ~2×, but when other degradation sources are present, the yield reduction is closer to 20%. Characteristics of the fill-tube assembly, such as the through-hole size and the glue mass, alter the dynamics and magnitude of the degradation. Overall, these aspects point the way toward improvements in the design, some of which (smaller diameter fill-tube) have already shown improvements.

View Accepted Manuscript (DOE)

Research Organization:: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)

Sponsoring Organization:: USDOE; USDOE National Nuclear Security Administration (NNSA)

Grant/Contract Number:: AC52-07NA27344; NA0001808

OSTI ID:: 1669246

Alternate ID(s):: OSTI ID: 1602892

Report Number(s):: LLNL-JRNL--786080; 979070

Journal Information:: Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 3 Vol. 27; ISSN 1070-664X

Publisher:: American Institute of Physics (AIP)Copyright Statement

Country of Publication:: United States

Language:: English

References (42)

High-mode Rayleigh-Taylor growth in NIF ignition capsules Hammel, B. A.; Haan, S. W.; Clark, D. S. High Energy Density Physics, Vol. 6, Issue 2 https://doi.org/10.1016/j.hedp.2009.12.005	journal	June 2010
Implicit Large Eddy Simulation: Computing Turbulent Fluid Dynamics Grinstein, Fernando F.; Margolin, Len G.; Rider, William J. https://doi.org/10.1017/CBO9780511618604	book	July 2007
The mixing transition in turbulent flows Dimotakis, Paul E. Journal of Fluid Mechanics, Vol. 409 https://doi.org/10.1017/S0022112099007946	journal	April 2000
Three-dimensional HYDRA simulations of National Ignition Facility targets Marinak, M. M.; Kerbel, G. D.; Gentile, N. A. Physics of Plasmas, Vol. 8, Issue 5 https://doi.org/10.1063/1.1356740	journal	May 2001
The effects of fill tubes on the hydrodynamics of ignition targets and prospects for ignition Edwards, John; Marinak, Marty; Dittrich, Tom Physics of Plasmas, Vol. 12, Issue 5 https://doi.org/10.1063/1.1914809	journal	May 2005
Artificial fluid properties for large-eddy simulation of compressible turbulent mixing Cook, Andrew W. Physics of Fluids, Vol. 19, Issue 5 https://doi.org/10.1063/1.2728937	journal	May 2007
Short-wavelength and three-dimensional instability evolution in National Ignition Facility ignition capsule designs Clark, D. S.; Haan, S. W.; Cook, A. W. Physics of Plasmas, Vol. 18, Issue 8 https://doi.org/10.1063/1.3609834	journal	August 2011
Experimental investigation of bright spots in broadband, gated x-ray images of ignition-scale implosions on the National Ignition Facility Barrios, M. A.; Regan, S. P.; Suter, L. J. Physics of Plasmas, Vol. 20, Issue 7 https://doi.org/10.1063/1.4816034	journal	July 2013
An in-flight radiography platform to measure hydrodynamic instability growth in inertial confinement fusion capsules at the National Ignition Facility Raman, K. S.; Smalyuk, V. A.; Casey, D. T. Physics of Plasmas, Vol. 21, Issue 7 https://doi.org/10.1063/1.4890570	journal	July 2014
Radiation hydrodynamics modeling of the highest compression inertial confinement fusion ignition experiment from the National Ignition Campaign Clark, D. S.; Marinak, M. M.; Weber, C. R. Physics of Plasmas, Vol. 22, Issue 2 https://doi.org/10.1063/1.4906897	journal	February 2015
Three-dimensional hydrodynamics of the deceleration stage in inertial confinement fusion Weber, C. R.; Clark, D. S.; Cook, A. W. Physics of Plasmas, Vol. 22, Issue 3 https://doi.org/10.1063/1.4914157	journal	March 2015
Validating hydrodynamic growth in National Ignition Facility implosionsa) Peterson, J. L.; Casey, D. T.; Hurricane, O. A. Physics of Plasmas, Vol. 22, Issue 5 https://doi.org/10.1063/1.4920952	journal	May 2015
Tent-induced perturbations on areal density of implosions at the National Ignition Facilitya) Tommasini, R.; Field, J. E.; Hammel, B. A. Physics of Plasmas, Vol. 22, Issue 5 https://doi.org/10.1063/1.4921218	journal	May 2015
Hydrodynamic instability growth of three-dimensional, “native-roughness” modulations in x-ray driven, spherical implosions at the National Ignition Facility Smalyuk, V. A.; Weber, S. V.; Casey, D. T. Physics of Plasmas, Vol. 22, Issue 7 https://doi.org/10.1063/1.4926591	journal	July 2015
Three-dimensional simulations of low foot and high foot implosion experiments on the National Ignition Facility Clark, D. S.; Weber, C. R.; Milovich, J. L. Physics of Plasmas, Vol. 23, Issue 5 https://doi.org/10.1063/1.4943527	journal	March 2016
Improving ICF implosion performance with alternative capsule supports Weber, C. R.; Casey, D. T.; Clark, D. S. Physics of Plasmas, Vol. 24, Issue 5 https://doi.org/10.1063/1.4977536	journal	May 2017
Symmetry control of an indirectly driven high-density-carbon implosion at high convergence and high velocity Divol, L.; Pak, A.; Berzak Hopkins, L. F. Physics of Plasmas, Vol. 24, Issue 5 https://doi.org/10.1063/1.4982215	journal	May 2017
Capsule physics comparison of National Ignition Facility implosion designs using plastic, high density carbon, and beryllium ablators Clark, D. S.; Kritcher, A. L.; Yi, S. A. Physics of Plasmas, Vol. 25, Issue 3 https://doi.org/10.1063/1.5016874	journal	March 2018
Mitigation of X-ray shadow seeding of hydrodynamic instabilities on inertial confinement fusion capsules using a reduced diameter fuel fill-tube MacPhee, A. G.; Smalyuk, V. A.; Landen, O. L. Physics of Plasmas, Vol. 25, Issue 5 https://doi.org/10.1063/1.5025183	journal	May 2018
Hydrodynamic instabilities seeded by the X-ray shadow of ICF capsule fill-tubes MacPhee, A. G.; Smalyuk, V. A.; Landen, O. L. Physics of Plasmas, Vol. 25, Issue 8 https://doi.org/10.1063/1.5037816	journal	August 2018
Sub-nanosecond single line-of-sight (SLOS) x-ray imagers (invited) Engelhorn, K.; Hilsabeck, T. J.; Kilkenny, J. Review of Scientific Instruments, Vol. 89, Issue 10 https://doi.org/10.1063/1.5039648	journal	October 2018
The Crystal Backlighter Imager: A spherically bent crystal imager for radiography on the National Ignition Facility Hall, G. N.; Krauland, C. M.; Schollmeier, M. S. Review of Scientific Instruments, Vol. 90, Issue 1 https://doi.org/10.1063/1.5058700	journal	January 2019
Robustness to hydrodynamic instabilities in indirectly driven layered capsule implosions Haines, Brian M.; Olson, R. E.; Sweet, W. Physics of Plasmas, Vol. 26, Issue 1 https://doi.org/10.1063/1.5080262	journal	January 2019
Three-dimensional modeling and hydrodynamic scaling of National Ignition Facility implosions Clark, D. S.; Weber, C. R.; Milovich, J. L. Physics of Plasmas, Vol. 26, Issue 5 https://doi.org/10.1063/1.5091449	journal	May 2019
Toward a burning plasma state using diamond ablator inertially confined fusion (ICF) implosions on the National Ignition Facility (NIF) Hopkins, L. Berzak; LePape, S.; Divol, L. Plasma Physics and Controlled Fusion, Vol. 61, Issue 1 https://doi.org/10.1088/1361-6587/aad97e	journal	November 2018
Modeling and projecting implosion performance for the National Ignition Facility Clark, D. S.; Weber, C. R.; Kritcher, A. L. Nuclear Fusion, Vol. 59, Issue 3 https://doi.org/10.1088/1741-4326/aabcf7	journal	December 2018
Simulations and experiments of the growth of the “tent” perturbation in NIF ignition implosions Hammel, B. A.; Tommasini, R.; Clark, D. S. Journal of Physics: Conference Series, Vol. 717 https://doi.org/10.1088/1742-6596/717/1/012021	journal	May 2016
Inhibition of turbulence in inertial-confinement-fusion hot spots by viscous dissipation Weber, C. R.; Clark, D. S.; Cook, A. W. Physical Review E, Vol. 89, Issue 5 https://doi.org/10.1103/PhysRevE.89.053106	journal	May 2014
Reduced instability growth with high-adiabat high-foot implosions at the National Ignition Facility Casey, D. T.; Smalyuk, V. A.; Raman, K. S. Physical Review E, Vol. 90, Issue 1 https://doi.org/10.1103/PhysRevE.90.011102	journal	July 2014
X-ray shadow imprint of hydrodynamic instabilities on the surface of inertial confinement fusion capsules by the fuel fill tube MacPhee, A. G.; Casey, D. T.; Clark, D. S. Physical Review E, Vol. 95, Issue 3 https://doi.org/10.1103/PhysRevE.95.031204	journal	March 2017
First Measurements of Hydrodynamic Instability Growth in Indirectly Driven Implosions at Ignition-Relevant Conditions on the National Ignition Facility Smalyuk, V. A.; Casey, D. T.; Clark, D. S. Physical Review Letters, Vol. 112, Issue 18 https://doi.org/10.1103/PhysRevLett.112.185003	journal	May 2014
Measurement of Hydrodynamic Growth near Peak Velocity in an Inertial Confinement Fusion Capsule Implosion using a Self-Radiography Technique Pickworth, L. A.; Hammel, B. A.; Smalyuk, V. A. Physical Review Letters, Vol. 117, Issue 3 https://doi.org/10.1103/PhysRevLett.117.035001	journal	July 2016
First Measurements of Fuel-Ablator Interface Instability Growth in Inertial Confinement Fusion Implosions on the National Ignition Facility Weber, C. R.; Döppner, T.; Casey, D. T. Physical Review Letters, Vol. 117, Issue 7 https://doi.org/10.1103/PhysRevLett.117.075002	journal	August 2016
Fusion Energy Output Greater than the Kinetic Energy of an Imploding Shell at the National Ignition Facility Le Pape, S.; Berzak Hopkins, L. F.; Divol, L. Physical Review Letters, Vol. 120, Issue 24 https://doi.org/10.1103/PhysRevLett.120.245003	journal	June 2018
Fill-Tube-Induced Mass Perturbations on X-Ray-Driven, Ignition-Scale, Inertial-Confinement-Fusion Capsule Shells and the Implications for Ignition Experiments Bennett, G. R.; Herrmann, M. C.; Edwards, M. J. Physical Review Letters, Vol. 99, Issue 20 https://doi.org/10.1103/PhysRevLett.99.205003	journal	November 2007
Turbulent Mixing Dimotakis, Paul E. Annual Review of Fluid Mechanics, Vol. 37, Issue 1 https://doi.org/10.1146/annurev.fluid.36.050802.122015	journal	January 2005
Robust Capsule and Fill Tube Assemblies for the National Ignition Campaign Johal, Z. Z.; Crippen, J. W.; Forsman, A. C. Fusion Science and Technology, Vol. 55, Issue 3 https://doi.org/10.13182/FST08-3503	journal	April 2009
National Ignition Facility Laser System Performance Spaeth, Mary L.; Manes, Kenneth R.; Bowers, M. Fusion Science and Technology, Vol. 69, Issue 1 https://doi.org/10.13182/FST15-136	journal	February 2016
Fabrication and Attachment of Polyimide Fill Tubes to Plastic NIF Capsules Takagi, Masaru; Saito, Kyle; Frederick, Christopher Fusion Science and Technology, Vol. 51, Issue 4 https://doi.org/10.13182/FST51-638	journal	May 2007
Fabrication of Pressurized 2 mm Beryllium Targets for ICF Experiments Lundgren, E. H.; Forsman, A. C.; Hoppe, M. L. Fusion Science and Technology, Vol. 51, Issue 4 https://doi.org/10.13182/FST51-756	journal	May 2007
Quantitative Dimension Measurement of ICF Components Using Xradia MicroXCT Microscope Huang, H.; Eddinger, S. A.; Schoff, M. Fusion Science and Technology, Vol. 55, Issue 4 https://doi.org/10.13182/FST55-373	journal	May 2009
Fabrication of Pressurized 2 mm Beryllium Targets for ICF Experiments Lundgren, E. H.; Forsman, A. C.; Hoppe, M. L. Fusion Science and Technology, Vol. 51, Issue 4 https://doi.org/10.13182/fst51-576	journal	May 2007

Figures / Tables (17)

Similar Records

The effects of fill tubes on the hydrodynamics of ignition targets and prospects for ignition

Journal Article · Thu Nov 18 23:00:00 EST 2004 · Physics of Plasmas · OSTI ID:950617

The effects of fill tubes on the hydrodynamics of ignition targets and prospects for ignition

Journal Article · Sun May 15 00:00:00 EDT 2005 · Physics of Plasmas · OSTI ID:20736610

Improving ICF implosion performance with alternative capsule supports

Journal Article · Mon Feb 27 19:00:00 EST 2017 · Physics of Plasmas · OSTI ID:1348030

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
Bremsstrahlung
Radiation flux
emission spectroscopy
fusion experiments
hydrodynamics simulations
nuclear fusion
plasmas
radiography
shock waves

Mixing in ICF implosions on the National Ignition Facility caused by the fill-tube

Citation Formats

References (42)

Figures / Tables (17)

Similar Records

Related Subjects