Ray-based modeling of cross-beam energy transfer at caustics
Abstract
Cross-beam energy transfer (CBET) is a laser-plasma instability that significantly impacts laser energy deposition in laser-driven inertial confinement fusion (ICF) experiments. Radiation-hydrodynamics simulations, which are used to design and tune ICF implosions, use ray-based CBET models, but existing models require artificial multipliers to conserve energy and to obtain quantitative agreement with experiments. The discretization of the ray trajectories in traditional ray-based CBET models does not account for the rapid variation in CBET gain as rays pass through caustics. In this study, we introduce a new model that allows one to treat caustics much more accurately and greatly improves energy conservation. The ray-based CBET calculations show excellent agreement with laser absorption from 2-D wave-based calculations (0.3% difference) and a 3-D 60-beam OMEGA implosion (2.4% difference) without artificial multipliers.
- Authors:
-
- Univ. of Rochester, NY (United States). Lab. for Laser Energetics
- Univ. of Alberta, Edmonton, AB (Canada). Department of Electrical and Computer Engineering
- Publication Date:
- Research Org.:
- Univ. of Rochester, NY (United States). Lab. for Laser Energetics
- Sponsoring Org.:
- USDOE National Nuclear Security Administration (NNSA)
- OSTI Identifier:
- 1477231
- Alternate Identifier(s):
- OSTI ID: 1477526
- Report Number(s):
- 2018-109, 1443
Journal ID: ISSN 2470-0045; PLEEE8; 2018-109, 1443, 2401
- Grant/Contract Number:
- NA0001944
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review E
- Additional Journal Information:
- Journal Volume: 98; Journal Issue: 4; Journal ID: ISSN 2470-0045
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 70 PLASMA PHYSICS AND FUSION TECHNOLOGY
Citation Formats
Follett, R. K., Shaw, J. G., Myatt, J. F., Goncharov, V. N., Edgell, D. H., Froula, D. H., and Palastro, J. P. Ray-based modeling of cross-beam energy transfer at caustics. United States: N. p., 2018.
Web. doi:10.1103/PhysRevE.98.043202.
Follett, R. K., Shaw, J. G., Myatt, J. F., Goncharov, V. N., Edgell, D. H., Froula, D. H., & Palastro, J. P. Ray-based modeling of cross-beam energy transfer at caustics. United States. https://doi.org/10.1103/PhysRevE.98.043202
Follett, R. K., Shaw, J. G., Myatt, J. F., Goncharov, V. N., Edgell, D. H., Froula, D. H., and Palastro, J. P. Tue .
"Ray-based modeling of cross-beam energy transfer at caustics". United States. https://doi.org/10.1103/PhysRevE.98.043202. https://www.osti.gov/servlets/purl/1477231.
@article{osti_1477231,
title = {Ray-based modeling of cross-beam energy transfer at caustics},
author = {Follett, R. K. and Shaw, J. G. and Myatt, J. F. and Goncharov, V. N. and Edgell, D. H. and Froula, D. H. and Palastro, J. P.},
abstractNote = {Cross-beam energy transfer (CBET) is a laser-plasma instability that significantly impacts laser energy deposition in laser-driven inertial confinement fusion (ICF) experiments. Radiation-hydrodynamics simulations, which are used to design and tune ICF implosions, use ray-based CBET models, but existing models require artificial multipliers to conserve energy and to obtain quantitative agreement with experiments. The discretization of the ray trajectories in traditional ray-based CBET models does not account for the rapid variation in CBET gain as rays pass through caustics. In this study, we introduce a new model that allows one to treat caustics much more accurately and greatly improves energy conservation. The ray-based CBET calculations show excellent agreement with laser absorption from 2-D wave-based calculations (0.3% difference) and a 3-D 60-beam OMEGA implosion (2.4% difference) without artificial multipliers.},
doi = {10.1103/PhysRevE.98.043202},
journal = {Physical Review E},
number = 4,
volume = 98,
place = {United States},
year = {Tue Oct 09 00:00:00 EDT 2018},
month = {Tue Oct 09 00:00:00 EDT 2018}
}
Web of Science
Figures / Tables:
Works referenced in this record:
Full-wave and ray-based modeling of cross-beam energy transfer between laser beams with distributed phase plates and polarization smoothing
journal, October 2017
- Follett, R. K.; Edgell, D. H.; Froula, D. H.
- Physics of Plasmas, Vol. 24, Issue 10
Theory and simulation of stimulated Brillouin scatter excited by nonabsorbed light in laser fusion systems
journal, January 1981
- Randall, C. J.
- Physics of Fluids, Vol. 24, Issue 8
Isolating and quantifying cross-beam energy transfer in direct-drive implosions on OMEGA and the National Ignition Facility
journal, May 2016
- Davis, A. K.; Cao, D.; Michel, D. T.
- Physics of Plasmas, Vol. 23, Issue 5
Saturation of multi-laser beams laser-plasma instabilities from stochastic ion heating
journal, May 2013
- Michel, P.; Rozmus, W.; Williams, E. A.
- Physics of Plasmas, Vol. 20, Issue 5
The upgrade to the OMEGA laser system
journal, January 1995
- Boehly, T. R.; Craxton, R. S.; Hinterman, T. H.
- Review of Scientific Instruments, Vol. 66, Issue 1
Doppler shift of laser light reflected from expanding plasmas
journal, January 1981
- Dewandre, Thierry
- Physics of Fluids, Vol. 24, Issue 3
First Observation of Cross-Beam Energy Transfer Mitigation for Direct-Drive Inertial Confinement Fusion Implosions Using Wavelength Detuning at the National Ignition Facility
journal, February 2018
- Marozas, J. A.; Hohenberger, M.; Rosenberg, M. J.
- Physical Review Letters, Vol. 120, Issue 8
Effect of laser illumination nonuniformity on the analysis of time-resolved x-ray measurements in uv spherical transport experiments
journal, October 1987
- Delettrez, J.; Epstein, R.; Richardson, M. C.
- Physical Review A, Vol. 36, Issue 8
Direct-drive inertial confinement fusion: A review
journal, November 2015
- Craxton, R. S.; Anderson, K. S.; Boehly, T. R.
- Physics of Plasmas, Vol. 22, Issue 11
Mitigation of cross-beam energy transfer in symmetric implosions on OMEGA using wavelength detuning
journal, June 2017
- Edgell, D. H.; Follett, R. K.; Igumenshchev, I. V.
- Physics of Plasmas, Vol. 24, Issue 6
A wave-based model for cross-beam energy transfer in direct-drive inertial confinement fusion
journal, May 2017
- Myatt, J. F.; Follett, R. K.; Shaw, J. G.
- Physics of Plasmas, Vol. 24, Issue 5
Crossed-beam energy transfer in direct-drive implosions
journal, May 2012
- Igumenshchev, I. V.; Seka, W.; Edgell, D. H.
- Physics of Plasmas, Vol. 19, Issue 5, Article No. 056314
Symmetry tuning via controlled crossed-beam energy transfer on the National Ignition Facility
journal, May 2010
- Michel, P.; Glenzer, S. H.; Divol, L.
- Physics of Plasmas, Vol. 17, Issue 5
Improving the hot-spot pressure and demonstrating ignition hydrodynamic equivalence in cryogenic deuterium–tritium implosions on OMEGA
journal, May 2014
- Goncharov, V. N.; Sangster, T. C.; Betti, R.
- Physics of Plasmas, Vol. 21, Issue 5
Crossed-beam energy transfer in implosion experiments on OMEGA
journal, December 2010
- Igumenshchev, I. V.; Edgell, D. H.; Goncharov, V. N.
- Physics of Plasmas, Vol. 17, Issue 12
Nonlinear Inverse Bremsstrahlung and Heated-Electron Distributions
journal, March 1980
- Langdon, A. Bruce
- Physical Review Letters, Vol. 44, Issue 9
Energy transfer between laser beams crossing in ignition hohlraums
journal, April 2009
- Michel, P.; Divol, L.; Williams, E. A.
- Physics of Plasmas, Vol. 16, Issue 4
Works referencing / citing this record:
Resonance absorption of a broadband laser pulse
journal, December 2018
- Palastro, J. P.; Shaw, J. G.; Follett, R. K.
- Physics of Plasmas, Vol. 25, Issue 12
Adaptive inverse ray-tracing for accurate and efficient modeling of cross beam energy transfer in hydrodynamics simulations
journal, July 2019
- Colaïtis, A.; Follett, R. K.; Palastro, J. P.
- Physics of Plasmas, Vol. 26, Issue 7
A unified modeling of wave mixing processes with the ray tracing method
journal, September 2019
- Debayle, A.; Ruyer, C.; Morice, O.
- Physics of Plasmas, Vol. 26, Issue 9
Figures / Tables found in this record: