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

Title: Symmetry tuning and high energy coupling for an Al capsule in a Au rugby hohlraum on NIF

Abstract

Experiments on imploding an Al capsule in a Au rugby hohlraum with up to a 1.5 MJ laser drive were performed on the National Ignition Facility (NIF). The capsule diameter was 3.0 mm with ~1 MJ drive and 3.4 mm with ~1.5 MJ drive. Effective symmetry tuning by modifying the rugby hohlraum shape was demonstrated, and good shell symmetry was achieved for 3.4 mm capsules at a convergence of ~10. The nuclear bang time and the shell velocity from simulations agree with experimental data, indicating ~500 kJ coupling with 1.5 MJ drive or ~30% efficiency. The peak velocity reached above 300 km/s for a 120 μm-thick Al capsule. The laser backscatter inside the low-gas-filled rugby hohlraum was very low (<4%) at both scales. The high energy coupling allows implosion designs with increased adiabat, which, in turn, increases the tolerance to detrimental effects of instabilities and asymmetries. These encouraging experimental results open new opportunities for both the mainline single-shell scheme and the double-shell design toward ignition.

Authors:
ORCiD logo [1];  [1];  [1]; ORCiD logo [1];  [1]; ORCiD logo [1];  [1]; ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [1];  [1]; ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [1];  [1]; ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [1];  [1] more »;  [1]; ORCiD logo [2]; ORCiD logo [2]; ORCiD logo [2]; ORCiD logo [2]; ORCiD logo [2];  [3];  [3]; ORCiD logo [3] « less
+ Show Author Affiliations
  1. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  3. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE Laboratory Directed Research and Development (LDRD) Program
OSTI Identifier:
1829663
Alternate Identifier(s):
OSTI ID: 1670825
Report Number(s):
LA-UR-21-30238
Journal ID: ISSN 1070-664X; TRN: US2216414
Grant/Contract Number:  
89233218CNA000001; NA0003868; 17-ERD-048
Resource Type:
Accepted Manuscript
Journal Name:
Physics of Plasmas
Additional Journal Information:
Journal Volume: 27; Journal Issue: 10; 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; Plasma confinement; Gamma rays; Radiography; Neutrons

Citation Formats

Ping, Y., Smalyuk, V. A., Amendt, P., Khan, S., Tommasini, R., Dewald, E., Field, J. E., Graziani, F., Hartouni, E., Johnson, S., Landen, O. L., Lindl, J., MacPhee, A., Nikroo, A., Nora, R., Prisbrey, S., Ralph, J., Seugling, R., Strozzi, D., Tipton, R. E., Wang, Y. M., Kim, Yong Ho, Loomis, Eric Nicholas, Meaney, Kevin Daniel, Merritt, Elizabeth Catherine, Montgomery, David, Kabadi, N., Lahmann, B., and Petrasso, R. Symmetry tuning and high energy coupling for an Al capsule in a Au rugby hohlraum on NIF. United States: N. p., 2020. Web. doi:10.1063/5.0021183.
Copy to clipboard
Ping, Y., Smalyuk, V. A., Amendt, P., Khan, S., Tommasini, R., Dewald, E., Field, J. E., Graziani, F., Hartouni, E., Johnson, S., Landen, O. L., Lindl, J., MacPhee, A., Nikroo, A., Nora, R., Prisbrey, S., Ralph, J., Seugling, R., Strozzi, D., Tipton, R. E., Wang, Y. M., Kim, Yong Ho, Loomis, Eric Nicholas, Meaney, Kevin Daniel, Merritt, Elizabeth Catherine, Montgomery, David, Kabadi, N., Lahmann, B., & Petrasso, R. Symmetry tuning and high energy coupling for an Al capsule in a Au rugby hohlraum on NIF. United States. https://doi.org/10.1063/5.0021183
Copy to clipboard
Ping, Y., Smalyuk, V. A., Amendt, P., Khan, S., Tommasini, R., Dewald, E., Field, J. E., Graziani, F., Hartouni, E., Johnson, S., Landen, O. L., Lindl, J., MacPhee, A., Nikroo, A., Nora, R., Prisbrey, S., Ralph, J., Seugling, R., Strozzi, D., Tipton, R. E., Wang, Y. M., Kim, Yong Ho, Loomis, Eric Nicholas, Meaney, Kevin Daniel, Merritt, Elizabeth Catherine, Montgomery, David, Kabadi, N., Lahmann, B., and Petrasso, R. Wed . "Symmetry tuning and high energy coupling for an Al capsule in a Au rugby hohlraum on NIF". United States. https://doi.org/10.1063/5.0021183. https://www.osti.gov/servlets/purl/1829663.
Copy to clipboard
@article{osti_1829663,
title = {Symmetry tuning and high energy coupling for an Al capsule in a Au rugby hohlraum on NIF},
author = {Ping, Y. and Smalyuk, V. A. and Amendt, P. and Khan, S. and Tommasini, R. and Dewald, E. and Field, J. E. and Graziani, F. and Hartouni, E. and Johnson, S. and Landen, O. L. and Lindl, J. and MacPhee, A. and Nikroo, A. and Nora, R. and Prisbrey, S. and Ralph, J. and Seugling, R. and Strozzi, D. and Tipton, R. E. and Wang, Y. M. and Kim, Yong Ho and Loomis, Eric Nicholas and Meaney, Kevin Daniel and Merritt, Elizabeth Catherine and Montgomery, David and Kabadi, N. and Lahmann, B. and Petrasso, R.},
abstractNote = {Experiments on imploding an Al capsule in a Au rugby hohlraum with up to a 1.5 MJ laser drive were performed on the National Ignition Facility (NIF). The capsule diameter was 3.0 mm with ~1 MJ drive and 3.4 mm with ~1.5 MJ drive. Effective symmetry tuning by modifying the rugby hohlraum shape was demonstrated, and good shell symmetry was achieved for 3.4 mm capsules at a convergence of ~10. The nuclear bang time and the shell velocity from simulations agree with experimental data, indicating ~500 kJ coupling with 1.5 MJ drive or ~30% efficiency. The peak velocity reached above 300 km/s for a 120 μm-thick Al capsule. The laser backscatter inside the low-gas-filled rugby hohlraum was very low (<4%) at both scales. The high energy coupling allows implosion designs with increased adiabat, which, in turn, increases the tolerance to detrimental effects of instabilities and asymmetries. These encouraging experimental results open new opportunities for both the mainline single-shell scheme and the double-shell design toward ignition.},
doi = {10.1063/5.0021183},
journal = {Physics of Plasmas},
number = 10,
volume = 27,
place = {United States},
year = {Wed Oct 07 00:00:00 EDT 2020},
month = {Wed Oct 07 00:00:00 EDT 2020}
}
Copy to clipboard
Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
https://doi.org/10.1063/5.0021183
Copyright Statement
Other availability
Search WorldCat Search WorldCat to find libraries that may hold this journal
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:

Prolate-Spheroid (“Rugby-Shaped”) Hohlraum for Inertial Confinement Fusion
journal, August 2007

NIF Rugby High Foot Campaign from the design side
journal, May 2016

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

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

The influence of hohlraum dynamics on implosion symmetry in indirect drive inertial confinement fusion experiments
journal, August 2018

  • Ralph, J. E.; Landen, O.; Divol, L.
  • Physics of Plasmas, Vol. 25, Issue 8
  • DOI: 10.1063/1.5023008

The I-Raum: A new shaped hohlraum for improved inner beam propagation in indirectly-driven ICF implosions on the National Ignition Facility
journal, January 2018

  • Robey, H. F.; Berzak Hopkins, L.; Milovich, J. L.
  • Physics of Plasmas, Vol. 25, Issue 1
  • DOI: 10.1063/1.5010922

Multi-shot analysis of the gamma reaction history diagnostic
journal, October 2012

  • Sayre, D. B.; Bernstein, L. A.; Church, J. A.
  • Review of Scientific Instruments, Vol. 83, Issue 10
  • DOI: 10.1063/1.4729492

Inertial-confinement fusion with lasers
journal, May 2016

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

Backlighter development at the National Ignition Facility (NIF): Zinc to zirconium
journal, September 2013

Rugby-like hohlraum experimental designs for demonstrating x-ray drive enhancement
journal, January 2008

  • Amendt, Peter; Cerjan, C.; Hinkel, D. E.
  • Physics of Plasmas, Vol. 15, Issue 1
  • DOI: 10.1063/1.2825662

Enhanced energy coupling for indirectly driven inertial confinement fusion
journal, October 2018

Assessing the prospects for achieving double-shell ignition on the National Ignition Facility using vacuum hohlraums
journal, May 2007

  • Amendt, Peter; Cerjan, C.; Hamza, A.
  • Physics of Plasmas, Vol. 14, Issue 5
  • DOI: 10.1063/1.2716406
    Sort by:
    [ × clear filter / sort ]

    Similar Records in DOE PAGES and OSTI.GOV collections: