Progress towards a more predictive model for hohlraum radiation drive and symmetry

Jones, O. S.; Suter, L. J.; Scott, H. A.; Barrios, M. A.; Farmer, W. A.; Hansen, S. B.; Liedahl, D. A.; Mauche, C. W.; Moore, A. S.; Rosen, M. D.; Salmonson, J. D.; Strozzi, D. J.; Thomas, C. A.; Turnbull, D. P.

doi:10.1063/1.4982693

Title: Progress towards a more predictive model for hohlraum radiation drive and symmetry

Journal Article · Fri May 19 00:00:00 EDT 2017 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.4982693· OSTI ID:1375645

Jones, O. S. ^[1]; Suter, L. J. ^[1]; Scott, H. A. ^[1];

^[1];

^[1]; Hansen, S. B. ^[2]; Liedahl, D. A. ^[1]; Mauche, C. W. ^[1]; Moore, A. S. ^[1]; Rosen, M. D. ^[1]; Salmonson, J. D. ^[1];

^[1];

^[1]; Turnbull, D. P. ^[3]

Lawrence Livermore National Laboratory, Livermore, California 94551, USA
Sandia National Laboratory, Albuquerque, New Mexico 87185, USA
Laboratory for Laser Energetics, Rochester, New York 14623, USA

For several years, we have been calculating the radiation drive in laser-heated gold hohlraums using flux-limited heat transport with a limiter of 0.15, tabulated values of local thermodynamic equilibrium gold opacity, and an approximate model for not in a local thermodynamic equilibrium (NLTE) gold emissivity (DCA_2010). This model has been successful in predicting the radiation drive in vacuum hohlraums, but for gas-filled hohlraums used to drive capsule implosions, the model consistently predicts too much drive and capsule bang times earlier than measured. Here, we introduce a new model that brings the calculated bang time into better agreement with the measured bang time. The new model employs (1) a numerical grid that is fully converged in space, energy, and time, (2) a modified approximate NLTE model that includes more physics and is in better agreement with more detailed offline emissivity models, and (3) a reduced flux limiter value of 0.03. We applied this model to gas-filled hohlraum experiments using high density carbon and plastic ablator capsules that had hohlraum He fill gas densities ranging from 0.06 to 1.6 mg/cc and hohlraum diameters of 5.75 or 6.72 mm. The new model predicts bang times to within ±100 ps for most experiments with low to intermediate fill densities (up to 0.85 mg/cc). This model predicts higher temperatures in the plasma than the old model and also predicts that at higher gas fill densities, a significant amount of inner beam laser energy escapes the hohlraum through the opposite laser entrance hole.

View Journal Article

Cite

Export

Save

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

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

Grant/Contract Number:: AC52-07NA27344

OSTI ID:: 1375645

Alternate ID(s):: OSTI ID: 1421189; OSTI ID: 1474378

Report Number(s):: LLNL-JRNL-719477; 10.1063/1.4982693

Journal Information:: Physics of Plasmas, Journal Name: Physics of Plasmas Vol. 24 Journal Issue: 5; ISSN 1070-664X

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

Country of Publication:: United States

Language:: English

Citation Metrics:

Cited by: 54 works

Citation information provided by
Web of Science

References (22)

Stimulated Raman scatter analyses of experiments conducted at the National Ignition Facility Hinkel, D. E.; Rosen, M. D.; Williams, E. A. Physics of Plasmas, Vol. 18, Issue 5 https://doi.org/10.1063/1.3577836	journal	May 2011
Electron temperature measurements inside the ablating plasma of gas-filled hohlraums at the National Ignition Facility Barrios, M. A.; Liedahl, D. A.; Schneider, M. B. Physics of Plasmas, Vol. 23, Issue 5 https://doi.org/10.1063/1.4948276	journal	April 2016
Steady-state radiative cooling rates for low-density, high-temperature plasmas Post, D. E.; Jensen, R. V.; Tarter, C. B. Atomic Data and Nuclear Data Tables, Vol. 20, Issue 5 https://doi.org/10.1016/0092-640X(77)90026-2	journal	November 1977
Simulation of self-generated magnetic fields in an inertial fusion hohlraum environment Farmer, W. A.; Koning, J. M.; Strozzi, D. J. Physics of Plasmas, Vol. 24, Issue 5 https://doi.org/10.1063/1.4983140	journal	May 2017
Hybrid atomic models for spectroscopic plasma diagnostics Hansen, S. B.; Bauche, J.; Bauche-Arnoult, C. High Energy Density Physics, Vol. 3, Issue 1-2 https://doi.org/10.1016/j.hedp.2007.02.032	journal	May 2007
A high-resolution integrated model of the National Ignition Campaign cryogenic layered experiments Jones, O. S.; Cerjan, C. J.; Marinak, M. M. Physics of Plasmas, Vol. 19, Issue 5 https://doi.org/10.1063/1.4718595	journal	May 2012
Multibeam Seeded Brillouin Sidescatter in Inertial Confinement Fusion Experiments Turnbull, D.; Michel, P.; Ralph, J. E. Physical Review Letters, Vol. 114, Issue 12 https://doi.org/10.1103/PhysRevLett.114.125001	journal	March 2015
Advances in NLTE modeling for integrated simulations Scott, H. A.; Hansen, S. B. High Energy Density Physics, Vol. 6, Issue 1 https://doi.org/10.1016/j.hedp.2009.07.003	journal	January 2010
Point design targets, specifications, and requirements for the 2010 ignition campaign on the National Ignition Facility Haan, S. W.; Lindl, J. D.; Callahan, D. A. Physics of Plasmas, Vol. 18, Issue 5 https://doi.org/10.1063/1.3592169	journal	May 2011
Plasma transport coefficients in a magnetic field by direct numerical solution of the Fokker–Planck equation Epperlein, E. M.; Haines, M. G. Physics of Fluids, Vol. 29, Issue 4 https://doi.org/10.1063/1.865901	journal	January 1986
Dante soft x-ray power diagnostic for National Ignition Facility Dewald, E. L.; Campbell, K. M.; Turner, R. E. Review of Scientific Instruments, Vol. 75, Issue 10 https://doi.org/10.1063/1.1788872	journal	October 2004
Super-transition-arrays: A model for the spectral analysis of hot, dense plasma Bar-Shalom, A.; Oreg, J.; Goldstein, W. H. Physical Review A, Vol. 40, Issue 6 https://doi.org/10.1103/PhysRevA.40.3183	journal	September 1989
X-ray conversion efficiency in vacuum hohlraum experiments at the National Ignition Facility Olson, R. E.; Suter, L. J.; Kline, J. L. Physics of Plasmas, Vol. 19, Issue 5 https://doi.org/10.1063/1.4704795	journal	May 2012
Energy flux limitation by ion acoustic turbulence in laser fusion schemes Manheimer, Wallace M. Physics of Fluids, Vol. 20, Issue 2 https://doi.org/10.1063/1.861863	journal	January 1977
The physics basis for ignition using indirect-drive targets on the National Ignition Facility Lindl, John D.; Amendt, Peter; Berger, Richard L. Physics of Plasmas, Vol. 11, Issue 2 https://doi.org/10.1063/1.1578638	journal	February 2004
The role of a detailed configuration accounting (DCA) atomic physics package in explaining the energy balance in ignition-scale hohlraums Rosen, M. D.; Scott, H. A.; Hinkel, D. E. High Energy Density Physics, Vol. 7, Issue 3 https://doi.org/10.1016/j.hedp.2011.03.008	journal	September 2011
The National Ignition Facility: Ushering in a new age for high energy density science Moses, E. I.; Boyd, R. N.; Remington, B. A. Physics of Plasmas, Vol. 16, Issue 4 https://doi.org/10.1063/1.3116505	journal	April 2009
X-ray conversion efficiency of high-Z hohlraum wall materials for indirect drive ignition Dewald, E. L.; Rosen, M.; Glenzer, S. H. Physics of Plasmas, Vol. 15, Issue 7 https://doi.org/10.1063/1.2943700	journal	July 2008
The relationship between gas fill density and hohlraum drive performance at the National Ignition Facility Hall, G. N.; Jones, O. S.; Strozzi, D. J. Physics of Plasmas, Vol. 24, Issue 5 https://doi.org/10.1063/1.4983142	journal	May 2017
Three‐dimensional simulations of Nova high growth factor capsule implosion experiments Marinak, M. M.; Tipton, R. E.; Landen, O. L. Physics of Plasmas, Vol. 3, Issue 5 https://doi.org/10.1063/1.872004	journal	May 1996
Towards a more universal understanding of radiation drive in gas-filled hohlraums Jones, O. S.; Thomas, C. A.; Amendt, P. A. Journal of Physics: Conference Series, Vol. 717 https://doi.org/10.1088/1742-6596/717/1/012026	journal	May 2016
Novel Characterization of Capsule X-Ray Drive at the National Ignition Facility MacLaren, S. A.; Schneider, M. B.; Widmann, K. Physical Review Letters, Vol. 112, Issue 10 https://doi.org/10.1103/PhysRevLett.112.105003	journal	March 2014

Cited By (11)

Enhanced energy coupling for indirectly driven inertial confinement fusion Ping, Y.; Smalyuk, V. A.; Amendt, P. Nature Physics, Vol. 15, Issue 2 https://doi.org/10.1038/s41567-018-0331-5	journal	October 2018
Hollow wall to stabilize and enhance ignition hohlraums Vandenboomgaerde, M.; Grisollet, A.; Bonnefille, M. Physics of Plasmas, Vol. 25, Issue 1 https://doi.org/10.1063/1.5008669	journal	January 2018
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
A simulation-based model for understanding the time dependent x-ray drive asymmetries and error bars in indirectly driven implosions on the National Ignition Facility Masse, L.; Clark, D.; MacLaren, S. Physics of Plasmas, Vol. 26, Issue 6 https://doi.org/10.1063/1.5092827	journal	June 2019
Ultra-high (>30%) coupling efficiency designs for demonstrating central hot-spot ignition on the National Ignition Facility using a Frustraum Amendt, Peter; Ho, Darwin; Ping, Yuan Physics of Plasmas, Vol. 26, Issue 8 https://doi.org/10.1063/1.5099934	journal	August 2019
Understanding ICF hohlraums using NIF gated laser-entrance-hole images Chen, Hui; Woods, D. T.; Jones, O. S. Physics of Plasmas, Vol. 27, Issue 2 https://doi.org/10.1063/1.5128501	journal	February 2020
Heat transport modeling of the dot spectroscopy platform on NIF Farmer, W. A.; Jones, O. S.; Barrios, M. A. Plasma Physics and Controlled Fusion, Vol. 60, Issue 4 https://doi.org/10.1088/1361-6587/aaaefd	journal	February 2018
Kinetic physics in ICF: present understanding and future directions Rinderknecht, Hans G.; Amendt, P. A.; Wilks, S. C. Plasma Physics and Controlled Fusion, Vol. 60, Issue 6 https://doi.org/10.1088/1361-6587/aab79f	journal	April 2018
Progress of indirect drive inertial confinement fusion in the United States Kline, J. L.; Batha, S. H.; Benedetti, L. R. Nuclear Fusion, Vol. 59, Issue 11 https://doi.org/10.1088/1741-4326/ab1ecf	journal	July 2019
Influence of atomic kinetics on inverse bremsstrahlung heating and nonlocal thermal transport Le, Hai P.; Sherlock, Mark; Scott, Howard A. Physical Review E, Vol. 100, Issue 1 https://doi.org/10.1103/physreve.100.013202	journal	July 2019
Suppression of the Biermann Battery and Stabilization of the Thermomagnetic Instability in Laser Fusion Conditions Sherlock, M.; Bissell, J. J. Physical Review Letters, Vol. 124, Issue 5 https://doi.org/10.1103/physrevlett.124.055001	journal	February 2020

Similar Records

Performance of beryllium targets with full-scale capsules in low-fill 6.72-mm hohlraums on the National Ignition Facility

Journal Article · Wed May 10 00:00:00 EDT 2017 · Physics of Plasmas · OSTI ID:1375645

Simakov, A. N.; Wilson, D. C.; Yi, S. A.; +33 more

LDRD Final Report: Advanced Hohlraum Concepts

Technical Report · Wed Nov 08 00:00:00 EST 2017 · OSTI ID:1375645

Jones, Ogden S.

Understanding ICF hohlraums using NIF gated laser-entrance-hole images

Journal Article · Thu Feb 06 00:00:00 EST 2020 · Physics of Plasmas · OSTI ID:1375645

Chen, Hui; Woods, D. T.; Jones, O. S.; +9 more

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
autoionization
plasma confinement
x-rays
plasma temperature
spectroscopy
transition metals
chemical elements
speed of sound
plasma instabilities
thermodynamic states and processes

Title: Progress towards a more predictive model for hohlraum radiation drive and symmetry

Citation Formats

References (22)

Cited By (11)

Similar Records

Related Subjects