Magnetized directly-driven ICF capsules: increased instability growth from non-uniform laser drive

Walsh, C. A.; Crilly, A. J.; Chittenden, J. P.

doi:10.1088/1741-4326/abab52

Magnetized directly-driven ICF capsules: increased instability growth from non-uniform laser drive

Journal Article · Wed Aug 26 00:00:00 EDT 2020 · Nuclear Fusion

DOI:https://doi.org/10.1088/1741-4326/abab52· OSTI ID:1808756

Walsh, C. A. ^[1]; Crilly, A. J. ^[2]; Chittenden, J. P. ^[2]

Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Imperial College, London (United Kingdom)

Simulations anticipate increased perturbation growth from non-uniform laser heating for magnetized direct-drive implosions. At the capsule pole, where the magnetic field is normal to the ablator surface, the field remains in the conduction zone and suppresses non-radial thermal conduction; in unmagnetized implosions this non-radial heat-flow is crucial in mitigating laser heating imbalances. Single-mode simulations show the magnetic field particularly amplifying short wavelength perturbations, whose behavior is dominated by thermal conduction. The most unstable wavelength can also become shorter. 3D multi-mode simulations of the capsule pole reinforce these findings, with increased perturbation growth anticipated across a wide range of scales. Finally, the results indicate that high-gain spherical direct-drive implosions require greater constraints on the laser heating uniformity when magnetized.

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

OSTI ID:: 1808756

Alternate ID(s):: OSTI ID: 1657310
OSTI ID: 23018643

Report Number(s):: LLNL-JRNL--811824; 1018138

Journal Information:: Nuclear Fusion, Journal Name: Nuclear Fusion Journal Issue: 10 Vol. 60; ISSN 0029-5515

Publisher:: IOP ScienceCopyright Statement

Country of Publication:: United States

Language:: English

References (31)

Critical elements of high gain laser fusion Bodner, Stephen E. Journal of Fusion Energy, Vol. 1, Issue 3 https://doi.org/10.1007/BF01050355	journal	July 1981
Diffusion-limit asymptotics of the transport equation, the P1/3 equations, and two flux-limited diffusion theories Morel, J. E. Journal of Quantitative Spectroscopy and Radiative Transfer, Vol. 65, Issue 5 https://doi.org/10.1016/S0022-4073(99)00148-X	journal	June 2000
Preserving monotonicity in anisotropic diffusion Sharma, Prateek; Hammett, Gregory W. Journal of Computational Physics, Vol. 227, Issue 1 https://doi.org/10.1016/j.jcp.2007.07.026	journal	November 2007
Hot-spot dynamics and deceleration-phase Rayleigh–Taylor instability of imploding inertial confinement fusion capsules Betti, R.; Umansky, M.; Lobatchev, V. Physics of Plasmas, Vol. 8, Issue 12 https://doi.org/10.1063/1.1412006	journal	December 2001
Two-dimensional simulations of plastic-shell, direct-drive implosions on OMEGA Radha, P. B.; Goncharov, V. N.; Collins, T. J. B. Physics of Plasmas, Vol. 12, Issue 3 https://doi.org/10.1063/1.1857530	journal	March 2005
The evolution of magnetic tower jets in the laboratory Ciardi, A.; Lebedev, S. V.; Frank, A. Physics of Plasmas, Vol. 14, Issue 5 https://doi.org/10.1063/1.2436479	journal	May 2007
Compressing magnetic fields with high-energy lasers Knauer, J. P.; Gotchev, O. V.; Chang, P. Y. Physics of Plasmas, Vol. 17, Issue 5 https://doi.org/10.1063/1.3416557	journal	May 2010
Two-dimensional simulations of the neutron yield in cryogenic deuterium-tritium implosions on OMEGA Hu, S. X.; Goncharov, V. N.; Radha, P. B. Physics of Plasmas, Vol. 17, Issue 10 https://doi.org/10.1063/1.3491467	journal	October 2010
Inertial confinement fusion implosions with imposed magnetic field compression using the OMEGA Laser Hohenberger, M.; Chang, P. -Y.; Fiksel, G. Physics of Plasmas, Vol. 19, Issue 5 https://doi.org/10.1063/1.3696032	journal	May 2012
Collisional effects on Rayleigh-Taylor-induced magnetic fieldsa) Manuel, M. J. -E.; Flaig, M.; Plewa, T. Physics of Plasmas, Vol. 22, Issue 5 https://doi.org/10.1063/1.4919392	journal	May 2015
The importance of electrothermal terms in Ohm's law for magnetized spherical implosions Davies, J. R.; Betti, R.; Chang, P. -Y. Physics of Plasmas, Vol. 22, Issue 11 https://doi.org/10.1063/1.4935286	journal	November 2015
Signatures of asymmetry in neutron spectra and images predicted by three-dimensional radiation hydrodynamics simulations of indirect drive implosions Chittenden, J. P.; Appelbe, B. D.; Manke, F. Physics of Plasmas, Vol. 23, Issue 5 https://doi.org/10.1063/1.4949523	journal	May 2016
Three-dimensional hydrodynamic simulations of OMEGA implosions Igumenshchev, I. V.; Michel, D. T.; Shah, R. C. Physics of Plasmas, Vol. 24, Issue 5 https://doi.org/10.1063/1.4979195	journal	May 2017
Laser-driven magnetized liner inertial fusion Davies, J. R.; Barnak, D. H.; Betti, R. Physics of Plasmas, Vol. 24, Issue 6 https://doi.org/10.1063/1.4984779	journal	June 2017
The potential of imposed magnetic fields for enhancing ignition probability and fusion energy yield in indirect-drive inertial confinement fusion Perkins, L. J.; Ho, D. D. -M; Logan, B. G. Physics of Plasmas, Vol. 24, Issue 6 https://doi.org/10.1063/1.4985150	journal	June 2017
Diagnostic signatures of performance degrading perturbations in inertial confinement fusion implosions McGlinchey, K.; Appelbe, B. D.; Crilly, A. J. Physics of Plasmas, Vol. 25, Issue 12 https://doi.org/10.1063/1.5064504	journal	December 2018
Perturbation modifications by pre-magnetisation of inertial confinement fusion implosions Walsh, C. A.; McGlinchey, K.; Tong, J. K. Physics of Plasmas, Vol. 26, Issue 2 https://doi.org/10.1063/1.5085498	journal	February 2019
Extended-magnetohydrodynamics in under-dense plasmas Walsh, C. A.; Chittenden, J. P.; Hill, D. W. Physics of Plasmas, Vol. 27, Issue 2 https://doi.org/10.1063/1.5124144	journal	February 2020
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
ZEUS-2D: A radiation magnetohydrodynamics code for astrophysical flows in two space dimensions. I - The hydrodynamic algorithms and tests. II - The magnetohydrodynamic algorithms and tests Stone, James M.; Norman, Michael L. The Astrophysical Journal Supplement Series, Vol. 80 https://doi.org/10.1086/191680	journal	May 1992
Heat flux effects in Ohm's law Haines, M. G. Plasma Physics and Controlled Fusion, Vol. 28, Issue 11 https://doi.org/10.1088/0741-3335/28/11/007	journal	November 1986
Design of 30-T pulsed magnetic field generator for magnetized high-energy-density plasma experiments Shapovalov, R. V.; Brent, G.; Moshier, R. Physical Review Accelerators and Beams, Vol. 22, Issue 8 https://doi.org/10.1103/PhysRevAccelBeams.22.080401	journal	August 2019
Laser ray tracing and power deposition on an unstructured three-dimensional grid Kaiser, Thomas B. Physical Review E, Vol. 61, Issue 1 https://doi.org/10.1103/PhysRevE.61.895	journal	January 2000
Enhancement of pressure perturbations in ablation due to kinetic magnetized transport effects under direct-drive inertial confinement fusion relevant conditions Hill, D. W.; Kingham, R. J. Physical Review E, Vol. 98, Issue 2 https://doi.org/10.1103/PhysRevE.98.021201	journal	August 2018
Direct-drive measurements of laser-imprint-induced shock velocity nonuniformities Peebles, J. L.; Hu, S. X.; Theobald, W. Physical Review E, Vol. 99, Issue 6 https://doi.org/10.1103/PhysRevE.99.063208	journal	June 2019
Rayleigh-Taylor Growth Measurements in the Acceleration Phase of Spherical Implosions on OMEGA Smalyuk, V. A.; Hu, S. X.; Hager, J. D. Physical Review Letters, Vol. 103, Issue 10 https://doi.org/10.1103/PhysRevLett.103.105001	journal	September 2009
Laser-Driven Magnetic-Flux Compression in High-Energy-Density Plasmas Gotchev, O. V.; Chang, P. Y.; Knauer, J. P. Physical Review Letters, Vol. 103, Issue 21 https://doi.org/10.1103/PhysRevLett.103.215004	journal	November 2009
Fusion Yield Enhancement in Magnetized Laser-Driven Implosions Chang, P. Y.; Fiksel, G.; Hohenberger, M. Physical Review Letters, Vol. 107, Issue 3 https://doi.org/10.1103/PhysRevLett.107.035006	journal	July 2011
Self-Generated Magnetic Fields in the Stagnation Phase of Indirect-Drive Implosions on the National Ignition Facility Walsh, C. A.; Chittenden, J. P.; McGlinchey, K. Physical Review Letters, Vol. 118, Issue 15 https://doi.org/10.1103/PhysRevLett.118.155001	journal	April 2017
Self-consistent Analytical Model of the Rayleigh-Taylor Instability in Inertial Confinement Fusion Sanz, J. Physical Review Letters, Vol. 73, Issue 20 https://doi.org/10.1103/PhysRevLett.73.2700	journal	November 1994
Comprehensive Diagnosis of Growth Rates of the Ablative Rayleigh-Taylor Instability Azechi, H.; Sakaiya, T.; Fujioka, S. Physical Review Letters, Vol. 98, Issue 4 https://doi.org/10.1103/PhysRevLett.98.045002	journal	January 2007

Similar Records

Laser energy deposition and its dynamic uniformity for direct-drive capsules

Journal Article · Wed Apr 15 00:00:00 EDT 2015 · Physics of Plasmas · OSTI ID:22408334

Fundamentals of ICF Hohlraums

Conference · Fri Sep 30 00:00:00 EDT 2005 · OSTI ID:885380

Three-dimensional simulations of Nova capsule implosion experiments

Conference · Tue Oct 31 23:00:00 EST 1995 · OSTI ID:192467

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
plasma physics

Magnetized directly-driven ICF capsules: increased instability growth from non-uniform laser drive

Citation Formats

References (31)

Similar Records

Related Subjects