Energetics of Multiple-Ion Species Hohlraum Plasmas

Neumayer, P; Berger, R; Callahan, D; Divol, L; Froula, D; London, R; MacGowan, B J; Meezan, N; Michel, P; Ross, J S; Sorce, C; Widmann, K; Suter, L; Glenzer, S H

doi:10.1063/1.2890126

Title: Energetics of Multiple-Ion Species Hohlraum Plasmas

Conference · Mon Nov 05 00:00:00 EST 2007

DOI:https://doi.org/10.1063/1.2890126· OSTI ID:923622

Neumayer, P; Berger, R; Callahan, D; Divol, L; Froula, D; London, R; MacGowan, B J; Meezan, N; Michel, P; Ross, J S; Sorce, C; Widmann, K; Suter, L; Glenzer, S H

A study of the laser-plasma interaction processes in multiple-ion species plasmas has been performed in plasmas that are created to emulate the plasma conditions in indirect drive inertial confinement fusion targets. Gas-filled hohlraums with densities of xe22/cc are heated to Te=3keV and backscattered laser light is measured by a suite of absolutely calibrated backscatter diagnostics. Ion Landau damping is increased by adding hydrogen to the CO2/CF4 gas fill. We find that the backscatter from stimulated Brillouin scattering is reduced is monotonically reduced with increasing damping, demonstrating that Landau damping is the controlling damping mechanism in ICF relevant high-electron temperature plasmas. The reduction in backscatter is accompanied by a comparable increase in both transmission of a probe beam and an increased hohlraum radiation temperature, showing that multiple-ion species plasmas improve the overall hohlraum energetics/performance. Comparison of the experimental data to linear gain calculations as well as detailed full-scale 3D laser-plasma interaction simulations show quantitative agreement. Our findings confirm the importance of Landau damping in controlling backscatter from high-electron temperature hohlraum plasmas and have lead to the inclusion of multi-ion species plasmas in the hohlraum point design for upcoming ignition campaigns at the National Ignition Facility.

View Conference

Cite

Export

Save

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

Sponsoring Organization:: USDOE

DOE Contract Number:: W-7405-ENG-48

OSTI ID:: 923622

Report Number(s):: UCRL-CONF-236317; TRN: US200804%%1358

Resource Relation:: Journal Volume: 15; Journal Issue: 5; Conference: Presented at: American Physical Society, Orlando, FL, United States, Nov 12 - Nov 16, 2007

Country of Publication:: United States

Language:: English

References (34)

The National Ignition Facility: Laser Performance and First Experiments Moses, Edward I.; Wuest, Craig R. Fusion Science and Technology, Vol. 47, Issue 3 https://doi.org/10.13182/FST47-314	journal	April 2005
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
Ignition target design and robustness studies for the National Ignition Facility Krauser, William J.; Hoffman, Nelson M.; Wilson, Douglas C. Physics of Plasmas, Vol. 3, Issue 5 https://doi.org/10.1063/1.872006	journal	May 1996
Design and modeling of ignition targets for the National Ignition Facility Haan, Steven W.; Pollaine, Stephen M.; Lindl, John D. Physics of Plasmas, Vol. 2, Issue 6 https://doi.org/10.1063/1.871209	journal	June 1995
Radiation drive in laser‐heated hohlraums Suter, L. J.; Kauffman, R. L.; Darrow, C. B. Physics of Plasmas, Vol. 3, Issue 5 https://doi.org/10.1063/1.872002	journal	May 1996
Experiments and multiscale simulations of laser propagation through ignition-scale plasmas Glenzer, S. H.; Froula, D. H.; Divol, L. Nature Physics, Vol. 3, Issue 10 https://doi.org/10.1038/nphys709	journal	September 2007
Random Phasing of High-Power Lasers for Uniform Target Acceleration and Plasma-Instability Suppression Kato, Y.; Mima, K.; Miyanaga, N. Physical Review Letters, Vol. 53, Issue 11 https://doi.org/10.1103/PhysRevLett.53.1057	journal	September 1984
Magnetorheological finishing for imprinting continuous-phase plate structures onto optical surfaces Menapace, Joseph A.; Dixit, Sham N.; Genin, Francois Y. XXXV Annual Symposium on Optical Materials for High Power Lasers: Boulder Damage Symposium, SPIE Proceedings https://doi.org/10.1117/12.527822	conference	June 2004
Improved gas-filled hohlraum performance on Nova with beam smoothing Kauffman, Robert L.; Powers, L. V.; Dixit, S. N. Physics of Plasmas, Vol. 5, Issue 5 https://doi.org/10.1063/1.872822	journal	May 1998
Suppression of interference speckles produced by a random phase plate, using a polarization control plate Tsubakimoto, K.; Nakatsuka, M.; Nakano, H. Optics Communications, Vol. 91, Issue 1-2 https://doi.org/10.1016/0030-4018(92)90091-5	journal	July 1992
Polarization smoothing in a convergent beam Munro, David H.; Dixit, Shamasundar N.; Langdon, A. Bruce Applied Optics, Vol. 43, Issue 36 https://doi.org/10.1364/AO.43.006639	journal	January 2004
Improved laser‐beam uniformity using the angular dispersion of frequency‐modulated light Skupsky, S.; Short, R. W.; Kessler, T. Journal of Applied Physics, Vol. 66, Issue 8 https://doi.org/10.1063/1.344101	journal	October 1989
Energetics of Inertial Confinement Fusion Hohlraum Plasmas Glenzer, S. H.; Suter, L. J.; Turner, R. E. Physical Review Letters, Vol. 80, Issue 13 https://doi.org/10.1103/PhysRevLett.80.2845	journal	March 1998
Progress in long scale length laser–plasma interactions Glenzer, S. H.; Arnold, P.; Bardsley, G. Nuclear Fusion, Vol. 44, Issue 12 https://doi.org/10.1088/0029-5515/44/12/S08	journal	November 2004
Intensity Limits for Propagation of $0.527 μ m$ Laser Beams through Large-Scale-Length Plasmas for Inertial Confinement Fusion Niemann, C.; Divol, L.; Froula, D. H. Physical Review Letters, Vol. 94, Issue 8 https://doi.org/10.1103/PhysRevLett.94.085005	journal	March 2005
Laser–plasma interactions in ignition‐scale hohlraum plasmas MacGowan, B. J.; Afeyan, B. B.; Back, C. A. Physics of Plasmas, Vol. 3, Issue 5 https://doi.org/10.1063/1.872000	journal	May 1996
An analytical and numerical investigation of ion acoustic waves in a two‐ion plasma Vu, H. X.; Wallace, J. M.; Bezzerides, B. Physics of Plasmas, Vol. 1, Issue 11 https://doi.org/10.1063/1.870889	journal	November 1994
The frequency and damping of ion acoustic waves in hydrocarbon (CH) and two‐ion‐species plasmas Williams, E. A.; Berger, R. L.; Drake, R. P. Physics of Plasmas, Vol. 2, Issue 1 https://doi.org/10.1063/1.871101	journal	January 1995
Observation of Two Ion-Acoustic Waves in a Two-Species Laser-Produced Plasma with Thomson Scattering Glenzer, S. H.; Back, C. A.; Estabrook, K. G. Physical Review Letters, Vol. 77, Issue 8 https://doi.org/10.1103/PhysRevLett.77.1496	journal	August 1996
Measurements of Nonlinear Growth of Ion-Acoustic Waves in Two-Ion-Species Plasmas with Thomson Scattering Froula, D. H.; Divol, L.; Glenzer, S. H. Physical Review Letters, Vol. 88, Issue 10 https://doi.org/10.1103/PhysRevLett.88.105003	journal	February 2002
Effect of Ion-Wave Damping on Stimulated Raman Scattering in High- $Z$ Laser-Produced Plasmas Kirkwood, R. K.; MacGowan, B. J.; Montgomery, D. S. Physical Review Letters, Vol. 77, Issue 13 https://doi.org/10.1103/PhysRevLett.77.2706	journal	September 1996
Measurements of laser-plasma instability relevant to ignition hohlraums Fernández, Juan C.; Bauer, Bruno S.; Cobble, James A. Physics of Plasmas, Vol. 4, Issue 5 https://doi.org/10.1063/1.872328	journal	May 1997
Observation of multiple mechanisms for stimulating ion waves in ignition scale plasmas Kirkwood, R. K.; MacGowan, B. J.; Montgomery, D. S. Physics of Plasmas, Vol. 4, Issue 5 https://doi.org/10.1063/1.872293	journal	May 1997
Direct‐drive laser‐fusion experiments with the OMEGA, 60‐beam, >40 kJ, ultraviolet laser system Soures, J. M.; McCrory, R. L.; Verdon, C. P. Physics of Plasmas, Vol. 3, Issue 5 https://doi.org/10.1063/1.871662	journal	May 1996
Soft x-ray power diagnostic improvements at the Omega Laser Facility Sorce, C.; Schein, J.; Weber, F. Review of Scientific Instruments, Vol. 77, Issue 10 https://doi.org/10.1063/1.2336462	journal	October 2006
On the control of filamentation of intense laser beams propagating in underdense plasma Williams, E. A. Physics of Plasmas, Vol. 13, Issue 5 https://doi.org/10.1063/1.2179051	journal	May 2006
Ideal Laser-Beam Propagation through High-Temperature Ignition Hohlraum Plasmas Froula, D. H.; Divol, L.; Meezan, N. B. Physical Review Letters, Vol. 98, Issue 8 https://doi.org/10.1103/PhysRevLett.98.085001	journal	February 2007
Thomson-scattering measurements of high electron temperature hohlraum plasmas for laser-plasma interaction studies Froula, D. H.; Ross, J. S.; Divol, L. Physics of Plasmas, Vol. 13, Issue 5 https://doi.org/10.1063/1.2203232	journal	May 2006
Three-dimensional HYDRA simulations of National Ignition Facility targets Marinak, M. M.; Kerbel, G. D.; Gentile, N. A. Physics of Plasmas, Vol. 8, Issue 5 https://doi.org/10.1063/1.1356740	journal	May 2001
Role of hydrodynamics simulations in laser-plasma interaction predictive capability Meezan, N. B.; Berger, R. L.; Divol, L. Physics of Plasmas, Vol. 14, Issue 5 https://doi.org/10.1063/1.2710782	journal	May 2007
Saturation and Spectral Characteristics of the Stokes Emission in the Stimulated Brillouin Process Tang, C. L. Journal of Applied Physics, Vol. 37, Issue 8 https://doi.org/10.1063/1.1703144	journal	July 1966
On the dominant and subdominant behavior of stimulated Raman and Brillouin scattering driven by nonuniform laser beams Berger, R. L.; Still, C. H.; Williams, E. A. Physics of Plasmas, Vol. 5, Issue 12 https://doi.org/10.1063/1.873171	journal	December 1998
Effect of Radiation on Shock Wave Behavior Marshak, R. E. Physics of Fluids, Vol. 1, Issue 1 https://doi.org/10.1063/1.1724332	journal	January 1958
X-ray generation in a cavity heated by 1.3- or 0.44- μ m laser light. III. Comparison of the experimental results with theoretical predictions for x-ray confinement Sigel, R.; Pakula, R.; Sakabe, S. Physical Review A, Vol. 38, Issue 11 https://doi.org/10.1103/PhysRevA.38.5779	journal	December 1988

Similar Records

Suppression of Stimulated Brillouin Scattering in multiple-ion species inertial confinemen fusion Hohlraum Plasmas

Conference · Mon May 14 00:00:00 EDT 2007 · OSTI ID:923622

Neumayer, P

Energetics of multiple-ion species hohlraum plasmas

Journal Article · Thu May 15 00:00:00 EDT 2008 · Physics of Plasmas · OSTI ID:923622

Neumayer, P; Berger, R L; Callahan, D; +11 more

Suppression of Stimulated Brillouin Scattering by Increased Landau Damping in Multiple-Ion-Species Hohlraum Plasmas

Journal Article · Fri Mar 14 00:00:00 EDT 2008 · Physical Review Letters · OSTI ID:923622

Neumayer, P; Berger, R L; Divol, L; +8 more

Related Subjects

42 ENGINEERING
BRILLOUIN EFFECT
DAMPING
DESIGN
HYDROGEN
IGNITION
LANDAU DAMPING
LASERS
PLASMA
PROBES
RADIATIONS
US NATIONAL IGNITION FACILITY

Title: Energetics of Multiple-Ion Species Hohlraum Plasmas

Citation Formats

References (34)

Similar Records

Related Subjects