Shock Ignition Laser-Plasma Interactions in Ignition-Scale Plasmas

Scott, Robert  H. H.; Glize, Kevin; Antonelli, Luca; Khan, Matthew; Theobald, Wolfgang; Wei, Mingsheng; Betti, Ricardo; Stoeckl, Christian; Seaton, Alexander George; Arber, Tony  D.; Barlow, Duncan; Goffrey, Thomas; Bennett, Keith; Garbett, Warren; Atzeni, Stefano; Casner, Alexis; Batani, Dimitri; Li, Chikang; Woolsey, Nigel

doi:10.1103/physrevlett.127.065001

Shock Ignition Laser-Plasma Interactions in Ignition-Scale Plasmas

Journal Article · Wed Aug 04 00:00:00 EDT 2021 · Physical Review Letters

DOI:https://doi.org/10.1103/physrevlett.127.065001· OSTI ID:1833260

^[1]; Glize, Kevin ^[1]; ^[2]; ^[2]; Theobald, Wolfgang ^[3]; Wei, Mingsheng ^[3]; Betti, Ricardo ^[3]; Stoeckl, Christian ^[3]; ^[4]; Arber, Tony D. ^[5]; ^[5]; ^[5]; Bennett, Keith ^[5]; Garbett, Warren ^[6]; ^[7]; Casner, Alexis ^[8]; Batani, Dimitri ^[8]; Li, Chikang ^[9]; ^[2]

Science and Technology Facilities Council (STFC), Oxford (United Kingdom). Rutherford Appleton Lab. (RAL)
Univ. of York (United Kingdom)
Univ. of Rochester, NY (United States)
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Univ. of Warwick, Coventry (United Kingdom)
Atomic Weapons Research Establishment (AWRE), Aldermaston (United Kingdom)
Univ. of Rome (Italy)
Univ. of Bordeaux (France)
Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)

Here, we use a subignition scale laser, the 30 kJ Omega, and a novel shallow-cone target to study laser-plasma interactions at the ablation-plasma density scale lengths and laser intensities anticipated for direct drive shock-ignition implosions at National Ignition Facility scale. Our results show that, under these conditions, the dominant instability is convective stimulated Raman scatter with experimental evidence of two plasmon decay (TPD) only when the density scale length is reduced. Particle-in-cell simulations indicate this is due to TPD being shifted to lower densities, removing the experimental back-scatter signature and reducing the hot-electron temperature. The experimental laser energy-coupling to hot electrons was found to be 1%–2.5%, with electron temperatures between 35 and 45 keV. Radiation-hydrodynamics simulations employing these hot-electron characteristics indicate that they should not preheat the fuel in MJ-scale shock ignition experiments.

View Accepted Manuscript (DOE)

Research Organization:: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)

Sponsoring Organization:: EUROfusion Consortium; Engineering and Physical Sciences Resource Council (EPSRC); USDOE National Nuclear Security Administration (NNSA)

Grant/Contract Number:: 89233218CNA000001

OSTI ID:: 1833260

Report Number(s):: LA-UR--21-22970

Journal Information:: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 6 Vol. 127; ISSN 0031-9007

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

References (37)

Geant4—a simulation toolkit Agostinelli, S.; Allison, J.; Amako, K. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 506, Issue 3 https://doi.org/10.1016/S0168-9002(03)01368-8	journal	July 2003
Preliminary results from the LMJ-PETAL experiment on hot electrons characterization in the context of shock ignition Baton, S. D.; Colaïtis, A.; Rousseaux, C. High Energy Density Physics, Vol. 36 https://doi.org/10.1016/j.hedp.2020.100796	journal	August 2020
Refining instrument response functions with 3-D Monte Carlo simulations of differential hard x-ray spectrometers Stoeckl, M.; Solodov, A. A. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 931 https://doi.org/10.1016/j.nima.2019.04.046	journal	July 2019
Laser Compression of Matter to Super-High Densities: Thermonuclear (CTR) Applications Nuckolls, John; Wood, Lowell; Thiessen, Albert Nature, Vol. 239, Issue 5368, p. 139-142 https://doi.org/10.1038/239139a0	journal	September 1972
Inertial-confinement fusion with lasers Betti, R.; Hurricane, O. A. Nature Physics, Vol. 12, Issue 5 https://doi.org/10.1038/nphys3736	journal	May 2016
Initial experiments on the shock-ignition inertial confinement fusion concept Theobald, W.; Betti, R.; Stoeckl, C. Physics of Plasmas, Vol. 15, Issue 5 https://doi.org/10.1063/1.2885197	journal	May 2008
Two-plasmon-decay instability in direct-drive inertial confinement fusion experiments Seka, W.; Edgell, D. H.; Myatt, J. F. Physics of Plasmas, Vol. 16, Issue 5 https://doi.org/10.1063/1.3125242	journal	May 2009
Diffraction-controlled backscattering threshold and application to Raman gap Rose, Harvey A.; Mounaix, Philippe Physics of Plasmas, Vol. 18, Issue 4 https://doi.org/10.1063/1.3581083	journal	April 2011
A spherical crystal imager for OMEGA EP Stoeckl, C.; Fiksel, G.; Guy, D. Review of Scientific Instruments, Vol. 83, Issue 3 https://doi.org/10.1063/1.3693348	journal	March 2012
Spherical shock-ignition experiments with the 40 + 20-beam configuration on OMEGA Theobald, W.; Nora, R.; Lafon, M. Physics of Plasmas, Vol. 19, Issue 10 https://doi.org/10.1063/1.4763556	journal	October 2012
A polar-drive shock-ignition design for the National Ignition Facility Anderson, K. S.; Betti, R.; McKenty, P. W. Physics of Plasmas, Vol. 20, Issue 5 https://doi.org/10.1063/1.4804635	journal	May 2013
Shock-ignition relevant experiments with planar targets on OMEGA Hohenberger, M.; Theobald, W.; Hu, S. X. Physics of Plasmas, Vol. 21, Issue 2 https://doi.org/10.1063/1.4865373	journal	February 2014
Generation of high pressure shocks relevant to the shock-ignition intensity regime Batani, D.; Antonelli, L.; Atzeni, S. Physics of Plasmas, Vol. 21, Issue 3 https://doi.org/10.1063/1.4869715	journal	March 2014
Spherical strong-shock generation for shock-ignition inertial fusiona) Theobald, W.; Nora, R.; Seka, W. Physics of Plasmas, Vol. 22, Issue 5 https://doi.org/10.1063/1.4920956	journal	May 2015
Direct-drive inertial confinement fusion: A review Craxton, R. S.; Anderson, K. S.; Boehly, T. R. Physics of Plasmas, Vol. 22, Issue 11 https://doi.org/10.1063/1.4934714	journal	November 2015
Two decades of progress in understanding and control of laser plasma instabilities in indirect drive inertial fusion Montgomery, David S. Physics of Plasmas, Vol. 23, Issue 5 https://doi.org/10.1063/1.4946016	journal	April 2016
Measurements of hot-electron temperature in laser-irradiated plasmas Solodov, A. A.; Yaakobi, B.; Edgell, D. H. Physics of Plasmas, Vol. 23, Issue 10 https://doi.org/10.1063/1.4965905	journal	October 2016
Calibration and characterization of a highly efficient spectrometer in von Hamos geometry for 7-10 keV x-rays Jarrott, L. C.; Wei, M. S.; McGuffey, C. Review of Scientific Instruments, Vol. 88, Issue 4 https://doi.org/10.1063/1.4981793	journal	April 2017
Enhanced hot-electron production and strong-shock generation in hydrogen-rich ablators for shock ignition Theobald, W.; Bose, A.; Yan, R. Physics of Plasmas, Vol. 24, Issue 12 https://doi.org/10.1063/1.4986797	journal	December 2017
Shock generation comparison with planar and hemispherical targets in shock ignition relevant experiment Baton, S. D.; Le Bel, E.; Brygoo, S. Physics of Plasmas, Vol. 24, Issue 9 https://doi.org/10.1063/1.4989525	journal	September 2017
Measurements of parametric instabilities at laser intensities relevant to strong shock generation Cristoforetti, G.; Antonelli, L.; Atzeni, S. Physics of Plasmas, Vol. 25, Issue 1 https://doi.org/10.1063/1.5006021	journal	January 2018
Experimental study of hot electron generation in shock ignition relevant high-intensity regime with large scale hot plasmas Zhang, S.; Krauland, C. M.; Peebles, J. Physics of Plasmas, Vol. 27, Issue 2 https://doi.org/10.1063/1.5119250	journal	February 2020
Laser-driven strong shocks with infrared lasers at intensity of 10 ¹⁶ W/cm ² Antonelli, L.; Trela, J.; Barbato, F. Physics of Plasmas, Vol. 26, Issue 11 https://doi.org/10.1063/1.5119697	journal	November 2019
Theory of stimulated scattering processes in laser-irradiated plasmas Forslund, D. W.; Kindel, J. M.; Lindman, E. L. Physics of Fluids, Vol. 18, Issue 8 https://doi.org/10.1063/1.861248	journal	January 1975
Diagnostic value of odd-integer half-harmonic emission from laser-produced plasmas Seka, W.; Afeyan, B. B.; Boni, R. Physics of Fluids, Vol. 28, Issue 8 https://doi.org/10.1063/1.865265	journal	January 1985
Laser-plasma instabilities in long scale-length plasmas relevant to shock-ignition Seaton, A. G.; Arber, T. D. Physics of Plasmas, Vol. 27, Issue 8 https://doi.org/10.1063/5.0010920	journal	August 2020
Contemporary particle-in-cell approach to laser-plasma modelling Arber, T. D.; Bennett, K.; Brady, C. S. Plasma Physics and Controlled Fusion, Vol. 57, Issue 11 https://doi.org/10.1088/0741-3335/57/11/113001	journal	September 2015
Transition from two-plasmon decay to stimulated Raman scattering under ignition conditions Xiao, C. Z.; Zhuo, H. B.; Yin, Y. Nuclear Fusion, Vol. 60, Issue 1 https://doi.org/10.1088/1741-4326/ab4e79	journal	November 2019
A frequency filter of backscattered light of stimulated Raman scattering due to the Raman rescattering in the gas-filled hohlraums Hao, Liang; Huo, Wen Yi; Liu, Zhanjun Nuclear Fusion, Vol. 61, Issue 3 https://doi.org/10.1088/1741-4326/abd921	journal	February 2021
The instability of liquid surfaces when accelerated in a direction perpendicular to their planes. I Taylor, Geoffrey Ingram Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, Vol. 201, Issue 1065, p. 192-196 https://doi.org/10.1098/rspa.1950.0052	journal	March 1950
Growth and Saturation of Convective Modes of the Two-Plasmon Decay Instability in Inertial Confinement Fusion Yan, R.; Maximov, A. V.; Ren, C. Physical Review Letters, Vol. 103, Issue 17 https://doi.org/10.1103/PhysRevLett.103.175002	journal	October 2009
Experiment in Planar Geometry for Shock Ignition Studies Baton, S. D.; Koenig, M.; Brambrink, E. Physical Review Letters, Vol. 108, Issue 19 https://doi.org/10.1103/PhysRevLett.108.195002	journal	May 2012
Gigabar Spherical Shock Generation on the OMEGA Laser Nora, R.; Theobald, W.; Betti, R. Physical Review Letters, Vol. 114, Issue 4 https://doi.org/10.1103/PhysRevLett.114.045001	journal	January 2015
Temporal Evolution of a Three-Wave Parametric Instability Rosenbluth, M. N.; White, R. B.; Liu, C. S. Physical Review Letters, Vol. 31, Issue 19 https://doi.org/10.1103/PhysRevLett.31.1190	journal	November 1973
Shock Ignition of Thermonuclear Fuel with High Areal Density Betti, R.; Zhou, C. D.; Anderson, K. S. Physical Review Letters, Vol. 98, Issue 15 https://doi.org/10.1103/PhysRevLett.98.155001	journal	April 2007
Hydrodynamic studies of high gain shock ignition targets: effect of low- to intermediate-mode asymmetries Atzeni, Stefano; Schiavi, Angelo; Antonelli, Luca The European Physical Journal D, Vol. 73, Issue 11 https://doi.org/10.1140/epjd/e2019-100317-5	journal	November 2019
Experimental observation of parametric instabilities at laser intensities relevant for shock ignition Cristoforetti, G.; Colaïtis, A.; Antonelli, L. EPL (Europhysics Letters), Vol. 117, Issue 3 https://doi.org/10.1209/0295-5075/117/35001	journal	February 2017

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