skip to main content
DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Review of hydro-instability experiments with alternate capsule supports in indirect-drive implosions on the National Ignition Facility

Abstract

Hydrodynamic instability growth of capsule support membranes (or “tents”) has been recognized as one of the major contributors to the performance degradation in high-compression plastic capsule implosions at the National Ignition Facility (NIF). The capsules were supported by tents because the nominal 10-μm diameter fill tubes were not strong enough to support capsules by themselves in indirect-drive implosions on NIF. After it was recognized that the tents had a significant impact of implosion's stability, new alternative support methods were investigated. While some of these methods completely eliminated tent, other concepts still used tents, but concentrated on mitigating their impact. The tent-less methods included “fishing pole” reinforced fill tubes, cantilevered fill tubes, and thin-wire “tetra cage” supports. In the “fishing pole” concept, a 10-μm fill tube was inserted inside 30-μm fill tube for extra support with the connection point located 300 μm away from the capsule surface. The cantilevered fill tubes were supported by 12-μm thick SiC rods, offset by up to 300 μm from the capsule surfaces. In the “tetra-cage” concept, 2.5-μm thick wires (carbon nanotube yarns) were used to support a capsule. Other concepts used “polar tents” and a “foam-shell” to mitigate the effects of the tents. The “polarmore » tents” had significantly reduced contact area between the tents and the capsule compared to the nominal tents. In the “foam-shell” concept, a 200-μm thick, 30 mg/cc SiO 2 foam layer was used to offset the tents away from the capsule surface in an attempt to mitigate their effects. These concepts were investigated in x-ray radiography experiments and compared with perturbations from standard tent support. The measured perturbations in the “fishing pole,” cantilevered fill tube, and “tetra-cage” concepts compared favorably with (were smaller than) nominal tent perturbations and were recommended for further testing for feasibility in layered DT implosions. The “polar tents” were tested in layered DT implosions with a relatively-stable “high-foot” drive showing an improvement in neutron yield in one experiment compared to companion implosions with nominal tents. Furthermore, this article reviews and summarizes recent experiments on these alternate capsule support concepts. In addition, the concept of magnetic levitation is also discussed.« less

Authors:
 [1];  [1];  [2];  [1];  [1];  [1];  [1];  [1];  [2]; ORCiD logo [1];  [3]; ORCiD logo [2];  [2]; ORCiD logo [2];  [1];  [1];  [2]; ORCiD logo [1]; ORCiD logo [1];  [1] more »;  [1]; ORCiD logo [2]; ORCiD logo [1];  [1];  [2];  [1];  [1]; ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [1];  [1]; ORCiD logo [1]; ORCiD logo [1];  [2];  [1];  [1];  [1] « less
  1. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  2. General Atomics, San Diego, CA (United States)
  3. Schafer Corp., Livermore, CA (United States)
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1479069
Report Number(s):
LLNL-JRNL-750300
Journal ID: ISSN 1070-664X; 935594
Grant/Contract Number:  
AC52-07NA27344
Resource Type:
Accepted Manuscript
Journal Name:
Physics of Plasmas
Additional Journal Information:
Journal Volume: 25; 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 TECHNOLOGY

Citation Formats

Smalyuk, V. A., Robey, H. F., Alday, C. L., Amendt, P., Aracne-Ruddle, C., Bigelow, J. R., Bunn, T., Casey, D. T., Chen, K. -C., Clark, D. S., Cortez, J. P., Crippen, J., Diaz, S., Farrell, M., Felker, S., Field, J. E., Jaquez, J., Johnson, S., Haan, S. W., Hammel, B. A., Hamza, A. V., Havre, M. O., Heinbockel, C., Hsing, W. W., Kangas, K., Kroll, J. J., Kucheyev, S. O., Landen, O. L., Lepro-Chavez, X., MacPhee, A. G., Martinez, D. A., Milovich, J., Nikroo, A., Pickworth, L. A., Rice, N., Stadermann, M., Steich, D., and Weber, C. R. Review of hydro-instability experiments with alternate capsule supports in indirect-drive implosions on the National Ignition Facility. United States: N. p., 2018. Web. doi:10.1063/1.5042081.
Smalyuk, V. A., Robey, H. F., Alday, C. L., Amendt, P., Aracne-Ruddle, C., Bigelow, J. R., Bunn, T., Casey, D. T., Chen, K. -C., Clark, D. S., Cortez, J. P., Crippen, J., Diaz, S., Farrell, M., Felker, S., Field, J. E., Jaquez, J., Johnson, S., Haan, S. W., Hammel, B. A., Hamza, A. V., Havre, M. O., Heinbockel, C., Hsing, W. W., Kangas, K., Kroll, J. J., Kucheyev, S. O., Landen, O. L., Lepro-Chavez, X., MacPhee, A. G., Martinez, D. A., Milovich, J., Nikroo, A., Pickworth, L. A., Rice, N., Stadermann, M., Steich, D., & Weber, C. R. Review of hydro-instability experiments with alternate capsule supports in indirect-drive implosions on the National Ignition Facility. United States. doi:10.1063/1.5042081.
Smalyuk, V. A., Robey, H. F., Alday, C. L., Amendt, P., Aracne-Ruddle, C., Bigelow, J. R., Bunn, T., Casey, D. T., Chen, K. -C., Clark, D. S., Cortez, J. P., Crippen, J., Diaz, S., Farrell, M., Felker, S., Field, J. E., Jaquez, J., Johnson, S., Haan, S. W., Hammel, B. A., Hamza, A. V., Havre, M. O., Heinbockel, C., Hsing, W. W., Kangas, K., Kroll, J. J., Kucheyev, S. O., Landen, O. L., Lepro-Chavez, X., MacPhee, A. G., Martinez, D. A., Milovich, J., Nikroo, A., Pickworth, L. A., Rice, N., Stadermann, M., Steich, D., and Weber, C. R. Mon . "Review of hydro-instability experiments with alternate capsule supports in indirect-drive implosions on the National Ignition Facility". United States. doi:10.1063/1.5042081. https://www.osti.gov/servlets/purl/1479069.
@article{osti_1479069,
title = {Review of hydro-instability experiments with alternate capsule supports in indirect-drive implosions on the National Ignition Facility},
author = {Smalyuk, V. A. and Robey, H. F. and Alday, C. L. and Amendt, P. and Aracne-Ruddle, C. and Bigelow, J. R. and Bunn, T. and Casey, D. T. and Chen, K. -C. and Clark, D. S. and Cortez, J. P. and Crippen, J. and Diaz, S. and Farrell, M. and Felker, S. and Field, J. E. and Jaquez, J. and Johnson, S. and Haan, S. W. and Hammel, B. A. and Hamza, A. V. and Havre, M. O. and Heinbockel, C. and Hsing, W. W. and Kangas, K. and Kroll, J. J. and Kucheyev, S. O. and Landen, O. L. and Lepro-Chavez, X. and MacPhee, A. G. and Martinez, D. A. and Milovich, J. and Nikroo, A. and Pickworth, L. A. and Rice, N. and Stadermann, M. and Steich, D. and Weber, C. R.},
abstractNote = {Hydrodynamic instability growth of capsule support membranes (or “tents”) has been recognized as one of the major contributors to the performance degradation in high-compression plastic capsule implosions at the National Ignition Facility (NIF). The capsules were supported by tents because the nominal 10-μm diameter fill tubes were not strong enough to support capsules by themselves in indirect-drive implosions on NIF. After it was recognized that the tents had a significant impact of implosion's stability, new alternative support methods were investigated. While some of these methods completely eliminated tent, other concepts still used tents, but concentrated on mitigating their impact. The tent-less methods included “fishing pole” reinforced fill tubes, cantilevered fill tubes, and thin-wire “tetra cage” supports. In the “fishing pole” concept, a 10-μm fill tube was inserted inside 30-μm fill tube for extra support with the connection point located 300 μm away from the capsule surface. The cantilevered fill tubes were supported by 12-μm thick SiC rods, offset by up to 300 μm from the capsule surfaces. In the “tetra-cage” concept, 2.5-μm thick wires (carbon nanotube yarns) were used to support a capsule. Other concepts used “polar tents” and a “foam-shell” to mitigate the effects of the tents. The “polar tents” had significantly reduced contact area between the tents and the capsule compared to the nominal tents. In the “foam-shell” concept, a 200-μm thick, 30 mg/cc SiO2 foam layer was used to offset the tents away from the capsule surface in an attempt to mitigate their effects. These concepts were investigated in x-ray radiography experiments and compared with perturbations from standard tent support. The measured perturbations in the “fishing pole,” cantilevered fill tube, and “tetra-cage” concepts compared favorably with (were smaller than) nominal tent perturbations and were recommended for further testing for feasibility in layered DT implosions. The “polar tents” were tested in layered DT implosions with a relatively-stable “high-foot” drive showing an improvement in neutron yield in one experiment compared to companion implosions with nominal tents. Furthermore, this article reviews and summarizes recent experiments on these alternate capsule support concepts. In addition, the concept of magnetic levitation is also discussed.},
doi = {10.1063/1.5042081},
journal = {Physics of Plasmas},
number = 7,
volume = 25,
place = {United States},
year = {2018},
month = {7}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Citation Metrics:
Cited by: 5 works
Citation information provided by
Web of Science

Save / Share:

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

First results of radiation-driven, layered deuterium-tritium implosions with a 3-shock adiabat-shaped drive at the National Ignition Facility
journal, August 2015

  • Smalyuk, V. A.; Robey, H. F.; Döppner, T.
  • Physics of Plasmas, Vol. 22, Issue 8
  • DOI: 10.1063/1.4929912

Extracting core shape from x-ray images at the National Ignition Facility
journal, October 2012

  • Glenn, S. M.; Benedetti, L. R.; Bradley, D. K.
  • Review of Scientific Instruments, Vol. 83, Issue 10
  • DOI: 10.1063/1.4731743

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

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

Improvements to Formvar Tent Fabrication Using the Meniscus Coater
journal, January 2011

  • Stadermann, M.; Letts, S. A.; Bhandarkar, S.
  • Fusion Science and Technology, Vol. 59, Issue 1
  • DOI: 10.13182/FST10-3714

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


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

Review on high repetition rate and mass production of the cryogenic targets for laser IFE
journal, January 2017

  • Aleksandrova, I. V.; Koresheva, E. R.
  • High Power Laser Science and Engineering, Vol. 5
  • DOI: 10.1017/hpl.2017.9

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


Trajectory adjusting system using a magnetic lens for a Pb-coated superconducting IFE target
journal, November 2006


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

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

Simulations and experiments of the growth of the “tent” perturbation in NIF ignition implosions
journal, May 2016


Mix and hydrodynamic instabilities on NIF
journal, June 2017


Erratum: “Review of the National Ignition Campaign 2009-2012” [Phys. Plasmas 21, 020501 (2014)]
journal, December 2014

  • Lindl, J. D.; Landen, O. L.; Edwards, J.
  • Physics of Plasmas, Vol. 21, Issue 12
  • DOI: 10.1063/1.4903459

A proposed design for multishell cryogenic laser fusion targets using superconducting levitation
journal, September 1981

  • Glocker, David A.
  • Applied Physics Letters, Vol. 39, Issue 6
  • DOI: 10.1063/1.92780

Pellet Delivery for the Conceptual Inertial Confinement Fusion Reactor Hiball
journal, November 1985


The effects of target mounts in direct-drive implosions on OMEGA
journal, August 2009

  • Igumenshchev, I. V.; Marshall, F. J.; Marozas, J. A.
  • Physics of Plasmas, Vol. 16, Issue 8
  • DOI: 10.1063/1.3195065

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

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


Design of a High-Foot High-Adiabat ICF Capsule for the National Ignition Facility
journal, February 2014


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

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



journal, June 2009

  • Ishigaki, Y.; Ueda, H.; Agatsuma, K.
  • IEEE Transactions on Applied Superconductivity, Vol. 19, Issue 3
  • DOI: 10.1109/TASC.2009.2017898

Mechanism of optical forces of magnetically suspended pellet for laser fusion scheme
journal, February 1999


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

Hot-Spot Mix in Ignition-Scale Inertial Confinement Fusion Targets
journal, July 2013


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

Measurement of Hydrodynamic Growth near Peak Velocity in an Inertial Confinement Fusion Capsule Implosion using a Self-Radiography Technique
journal, July 2016


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

Magnetic suspension of a pellet for inertial confinement fusion
journal, June 1993


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

Performance of High-Convergence, Layered DT Implosions with Extended-Duration Pulses at the National Ignition Facility
journal, November 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

Laser Compression of Matter to Super-High Densities: Thermonuclear (CTR) Applications
journal, September 1972

  • Nuckolls, John; Wood, Lowell; Thiessen, Albert
  • Nature, Vol. 239, Issue 5368, p. 139-142
  • DOI: 10.1038/239139a0

Fourier-space image processing for spherical experiments on OMEGA (invited)
journal, January 2001

  • Smalyuk, V. A.; Boehly, T. R.; Iwan, L. S.
  • Review of Scientific Instruments, Vol. 72, Issue 1
  • DOI: 10.1063/1.1315642

Measurement and simulation of jet mass caused by a high-aspect ratio hole perturbation
journal, June 2010

  • Keiter, P. A.; Elliott, J. B.; Blue, B. E.
  • Physics of Plasmas, Vol. 17, Issue 6
  • DOI: 10.1063/1.3432116

Demonstration of High Performance in Layered Deuterium-Tritium Capsule Implosions in Uranium Hohlraums at the National Ignition Facility
journal, July 2015


Vapor annealing synthesis of non-epitaxial MgB 2 films on glassy carbon
journal, March 2018

  • Baker, A. A.; Aji, L. B. Bayu; Bae, J. H.
  • Superconductor Science and Technology, Vol. 31, Issue 5
  • DOI: 10.1088/1361-6668/aab4eb

High-resolution modeling of indirectly driven high-convergence layered inertial confinement fusion capsule implosions
journal, May 2017

  • Haines, Brian M.; Aldrich, C. H.; Campbell, J. M.
  • Physics of Plasmas, Vol. 24, Issue 5
  • DOI: 10.1063/1.4981222

Hydrodynamic instability growth and mix experiments at the National Ignition Facility
journal, May 2014

  • Smalyuk, V. A.; Barrios, M.; Caggiano, J. A.
  • Physics of Plasmas, Vol. 21, Issue 5
  • DOI: 10.1063/1.4872026

Enhanced Delamination of Ultrathin Free-Standing Polymer Films via Self-Limiting Surface Modification
journal, April 2014

  • Baxamusa, Salmaan H.; Stadermann, Michael; Aracne-Ruddle, Chantel
  • Langmuir, Vol. 30, Issue 18
  • DOI: 10.1021/la5011665

Thin Shell, High Velocity Inertial Confinement Fusion Implosions on the National Ignition Facility
journal, April 2015


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


X-ray shadow imprint of hydrodynamic instabilities on the surface of inertial confinement fusion capsules by the fuel fill tube
journal, March 2017