Measurements of Strain-Induced Refractive-Index Changes in LiF Using Direct-Drive Ramp Compression
|
|
- Sharlene Bates
- 5 years ago
- Views:
Transcription
1 Measurements of Strain-Induced Refractive-Index Changes in LiF Using Direct-Drive Ramp Compression Apparent particle velocity (nm/ns) GPa 8 GPa True particle velocity (nm/ns) D. E. Fratanduono University of Rochester Laboratory for Laser Energetics 51st Annual Meeting of the American Physical Society Division of Plasma Physics Atlanta, GA 2 6 November 29
2 Summary The refractive index of quasi-isentropically compressed LiF has been measured to ~8 GPa The shock-compressed refractive index of LiF was previously studied to 1 GPa* LiF is observed to be transparent up to 8 GPa with quasi-isentropic compression remains transparent for single shocks < 16 GPa Ramp-compressed LiF refractive index is in agreement with existing data does not depend on loading technique (shock versus ramp compression) LiF refractive index scales linearly with density up to 8 GPa E18359 *J. L. Wise and L. C. Chhabildas, presented at the American Physical Society Topical Conference on Shock Waves in Condensed Matter, Spokane, WA, 22 July 1985.
3 Collaborators M. A. Barrios T. R. Boehly D. D. Meyerhofer University of Rochester Laboratory for Laser Energetics R. Smith J. H. Eggert D. G. Hicks P. M. Celliers G. W. Collins R. Rygg Lawrence Livermore National Laboratory
4 Changes in the refractive index affect VISAR measurements L Diamond U s n Reflecting shock Window VISAR VISAR measures the rate of change of the optical path length (OPL) OPL depends upon n and n s L OPL = # n ( x ) dx Diamond U s VISAR Corrections must be made for shocked materials (n s ) n s n Reflecting surface E18447
5 Transparency of shocks in LiF windows makes it possible for VISAR to probe the material interface LiF window Shock LiF Diamond U p U s VISAR n s n Reflecting surface Single shocks up to 16 GPa are transparent in LiF multi-shocks up to 5 GPa are transparent VISAR probes through compressed material, this alters its sensitivity For shock compression up to 1 GPa, the refractive index scales linearly with density:* n = a + bt E1846a *J. L. Wise and L. C. Chhabildas, Shock Waves in Condensed Matter 1985, DEAC4-DP789
6 Simultaneous measurement of free-surface and apparent particle velocities provide index correction Diamond OMEGA Free surface velocity VISAR Diamond isentrope* and LiF EOS are known Use impedance matching to infer true particle velocity Gold layer LiF Apparent particle velocity Derive correction from measured versus true particle velocity E1836 *D. K. Bradley et al., Phys. Rev. Lett. 12, 7553 (29).
7 Apparent U p is compared to true U p (derived from U fs ) to obtain correction Velocity (nm/ns) Quasi-Isentropic Ramp Compression Diamond-free surface Apparent LiF particle True LiF particle Ratio: correction factor Time (ns) Shot E18362
8 Quasi-isentropic ramp compression allows for continuous measurements to be made U p (nm/ns) * Wise (1985) Lalone (28) Wise (Fit) Janus (28) Ramp comp. 2 du du * p p = dn n Z t d t Ramp experiment exhibited higher temperatures than predicted U p (nm/ns) E18363
9 Glue layers compromised ramp measurements, but the final state can be used to obtain correction Diamond OMEGA VISAR 8 Final state Velocity (nm/ns) Diamondfree surface 4 LiF Glue Time (ns) LiF interface 6 Pressure (GPa) Diamond isentrope LiF hugoniot (STP) LiF isentrope (HEL) LiF hugoniot (1) HEL Particle velocity (nm/ns) E18364
10 LiF refractive index depends linearly on density to 8 GPa U p (nm/ns) * Wise (1985) Lalone (28) Wise (Fit) Janus (28) Ramp comp. Ramp peak 1 GPa 8 GPa U p (nm/ns) For compressed material: du du * p p This case = n s du* du dn Z t d t p p s = constant n s = constant + n t E18434
11 Summary/Conclusions The refractive index of quasi-isentropically compressed LiF has been measured to ~8 GPa The shock-compressed refractive index of LiF was previously studied to 1 GPa* LiF is observed to be transparent up to 8 GPa with quasi-isentropic compression remains transparent for single shocks < 16 GPa Ramp-compressed LiF refractive index is in agreement with existing data does not depend on loading technique (shock versus ramp compression) LiF refractive index scales linearly with density up to 8 GPa E18359 *J. L. Wise and L. C. Chhabildas, presented at the American Physical Society Topical Conference on Shock Waves in Condensed Matter, Spokane, WA, 22 July 1985.
12 The optical path length of linear window materials does not affect the particle velocity Diamond t(x) LiF VISAR Reflecting surface Free surface E1847a The apparent particle velocity [V*(t)] of the interface is dependent d xr upon the refractive index [V*(t)] = b # n^xl, thdx l dt x ( t ) If LiF follows Gladstone Dale (n = a + bt) d x [V*(t)] = ; s a x / t x/ t x, t dx dt ^ s h ^ h + b # t^ l h l E Mass conservation x ( t ) V * ^th True particle velocity [V(t)] is V^th = a No dependence upon the optical path length in LiF if the behavior follows Gladstone Dale
13 Determination of laser pulse design to maintain shockless compression Free-surface velocity Simulated Versus Measured Velocities ASBO 1 ASBO 2 P51 The requirement for shockless compression over distance x (without reflection) dp dt C x 2 dp C < L L Pulse profile design is complicated with the inclusion of reflected waves correction for wave interactions* Time (ns) 5 6 Predictions correlate well with experimental data E18361 *S. D. Rothman and J. Maw, J. Phys. IV France 134, 745 (26).
14 Methods to study the LiF refractive index Temperature (1 K) LiF Boehler melt (1997) SESAME 7271 SESAME 7271 MD simulations Melt line Isentrope Hugoniot Two methods of study shock compression ramp compression Each method makes it possible to study different regions of phase space Study whether loading technique affects the index of refraction Pressure (GPa) 25 3 Understand if melt causes LiF window blanking E1851a
Refractive-Index Measurements of LiF Ramp Compressed to 800 GPa
Refractive-Index Measurements of LiF Ramp Compressed to 8 GPa Pressure (GPa) 1 4 68 1.6 1.55 Refractive index D. E. Fratanduono Lawrence Livermore National Laboratory 1.5 1.45 1.4 1.35 Weighted mean Wise
More informationHigh-Intensity Shock-Ignition Experiments in Planar Geometry
High-Intensity Shock-Ignition Experiments in Planar Geometry Low intensity High intensity 4 nm CH 3 nm Mo 138 nm quartz VISAR SOP Simulated peak pressure (Mbar) 1 5 Laser backscatter 17.5 kev Mo K a Hard
More informationShock compression of precompressed deuterium
LLNL-PROC-491811 Shock compression of precompressed deuterium M. R. Armstrong, J. C. Crowhurst, J. M. Zaug, S. Bastea, A. F. Goncharov, B. Militzer August 3, 2011 Shock compression of precompressed deuterium
More informationShock-Wave Equation-of-State Measurements in Fused Silica up to 1600 GPa
Shock-Wave Equation-of-State Measurements in Fused Silica up to 1600 GPa Introduction Silica is the single most-abundant compound in the earth s mantle and crust and an end member of the MgO-FeO-SiO2 system
More informationAdiabat Shaping of Direct-Drive OMEGA Capsules Using Ramped Pressure Profiles
Adiabat Shaping of Direct-Drive OMEGA Capsules Using Ramped Pressure Profiles a r Lagrangian coordinate K. Anderson University of Rochester Laboratory for Laser Energetics 44th Annual Meeting of the American
More informationTwo-Dimensional Simulations of Electron Shock Ignition at the Megajoule Scale
Two-Dimensional Simulations of Electron Shock Ignition at the Megajoule Scale Laser intensity ( 1 15 W/cm 2 ) 5 4 3 2 1 Laser spike is replaced with hot-electron spike 2 4 6 8 1 Gain 2 15 1 5 1. 1.2 1.4
More informationMonochromatic 8.05-keV Flash Radiography of Imploded Cone-in-Shell Targets
Monochromatic 8.5-keV Flash Radiography of Imploded Cone-in-Shell Targets y position (nm) y position (nm) 2 3 4 5 2 3 4 66381 undriven 66393, 3.75 ns 66383, 3.82 ns Au Al 66391, 3.93 ns 66386, 4.5 ns 66389,
More informationCOUPLING STATIC AND DYNAMIC COMPRESSIONS: FIRST MEASUREMENTS IN DENSE HYDROGEN
High Pressure Research Vol. 24, No. 1, March 2004, pp. 25 31 COUPLING STATIC AND DYNAMIC COMPRESSIONS: FIRST MEASUREMENTS IN DENSE HYDROGEN P. LOUBEYRE a, *, P. M. CELLIERS b, D. G. HICKS b, E. HENRY f,
More informationShock-wave equation-of-state measurements in fused silica up to 1600 GPa. Rochester, NY , USA. Rochester, NY 14620, USA
Shock-wave equation-of-state measurements in fused silica up to 1600 GPa C. A. McCoy, 1,2 M. C. Gregor, 1,3 D. N. Polsin, 1,3 D. E. Fratanduono, 4 P. M. Celliers, 4 T. R. Boehly, 1 and D. D. Meyerhofer
More informationProgress in the study of Warm Dense Matter
Progress in the study of Warm Dense Matter Koenig, M., Benuzzi-Mounaix, A., Vinci, T., Ozaki, N., Lepape, S., Batani, D.,... Romagnani, L. (2005). Progress in the study of Warm Dense Matter. Plasma Physics
More informationStrength effects in diamond under shock compression from 0.1 to 1 TPa
Strength effects in diamond under shock compression from 0.1 to 1 TPa R. S. McWilliams, 1,2, * J. H. Eggert, 2 D. G. Hicks, 2 D. K. Bradley, 2 P. M. Celliers, 2 D. K. Spaulding, 1 T. R. Boehly, 3 G. W.
More informationMeasuring the Refractive Index of a Laser-Plasma System
Measuring the Refractive Index of a Laser-Plasma System 1 dh ( 10 4 ) 0 1 J (dh) R (dh) 3 2 1 0 1 2 3 D. Turnbull University of Rochester Laboratory for Laser Energetics Dm (Å) 58th Annual Meeting of the
More informationMitigation of Cross-Beam Energy Transfer in Direct-Drive Implosions on OMEGA
Mitigation of Cross-Beam Energy Transfer in Direct-Drive Implosions on OMEGA In-flight aspect ratio OMEGA cryogenic ignition hydro-equivalent design tr = 3 mg/cm 2, V imp = 3.7 7 cm/s 3 3 2 14 m = 48 ng
More informationIon-Acoustic-Wave Instability from Laser-Driven Return Currents
Ion-Acoustic-Wave Instability from Laser-Driven Return Currents 3.0 3~ beam 2.5 4~ TS beam 60 100 100-nm TS volume Thomsonscattered light 5 0 5 Wavelength shift (Å) 0.5 0.0 D. H. Froula University of Rochester
More informationAnalysis of Laser-Imprinting Reduction in Spherical-RT Experiments with Si-/Ge-Doped Plastic Targets
Analysis of Laser-Imprinting Reduction in Spherical-RT Experiments with Si-/Ge-Doped Plastic Targets v rms of tr (mg/cm )..6 Si [4.%] Si [7.4%] Ge [.9%] DRACO simulations..4 Time (ns) S. X. Hu University
More informationCollimation of a Positron Beam Using an Externally Applied Axially Symmetric Magnetic Field FSC
Collimation of a Positron Beam Using an Externally Applied Axially Symmetric Magnetic Field Numbers (MeV/Sr) 1 12 1 11 1 1 1 9 Electrons Positrons Reference shot (no B fields) 1 15 Shot with B fields by
More informationFramed X-Ray Imaging of Cryogenic Target Implosion Cores on OMEGA
Framed X-Ray Imaging of Cryogenic Target Implosion Cores on OMEGA KBFRAMED optic assembly KBFRAMED core image OMEGA cryogenic DT target implosion shot 77064 F. J. Marshall University of Rochester Laboratory
More informationA Model of Laser Imprinting. V. N. Goncharov, S. Skupsky, R. P. J. Town, J. A. Delettrez, D. D. Meyerhofer, T. R. Boehly, and O.V.
A Model of Laser Imprinting V. N. Goncharov, S. Skupsky, R. P. J. Town, J. A. Delettrez, D. D. Meyerhofer, T. R. Boehly, and O.V. Gotchev Laboratory for Laser Energetics, U. of Rochester The control of
More informationDetermination of the Flux Limiter in CH Targets from Experiments on the OMEGA Laser
Determination of the Flux Limiter in CH Targets from Experiments on the OMEGA Laser f = 0.070 Neutron rate (1/s) Exp. f = 0.065 f = 0.060 J. A. Delettrez et al. University of Rochester Laboratory for Laser
More informationPolar Drive on OMEGA and the NIF
Polar Drive on OMEGA and the NIF OMEGA polar-drive geometry 21.4 Backlit x-ray image OMEGA polar-drive implosion 21.4 58.2 77.8 42. 58.8 CR ~ 5 R = 77 nm 4 nm 4 nm P. B. Radha University of Rochester Laboratory
More informationAdvanced Ignition Experiments on OMEGA
Advanced Ignition Experiments on OMEGA C. Stoeckl University of Rochester Laboratory for Laser Energetics 5th Annual Meeting of the American Physical Society Division of Plasma Physics Dallas, TX 17 21
More informationNanosecond Broadband Spectroscopy For Laser-Driven Compression Experiments
Nanosecond Broadband Spectroscopy For Laser-Driven Compression Experiments Dylan K. Spaulding, R. Jeanloz Department of Earth and Planetary Science, University of California, Berkeley307 McCone Hall, Berkeley,
More informationMechanical and optical response of [100] lithium fluoride to multi-megabar dynamic pressures
to multi-megabar dynamic pressures Jean-Paul Davis 1, Marcus D. Knudson 1,2, Luke Shulenburger 1, and Scott D. Crockett 3 1 Sandia National Laboratories, Albuquerque, New Mexico 87185, USA 2 Institute
More informationThe 1-D Campaign on OMEGA: A Systematic Approach to Find the Path to Ignition
The 1-D Campaign on OMEGA: A Systematic Approach to Find the Path to Ignition Normalized intensity 1..8.6.4.2 R. Betti University of Rochester Laboratory for Laser Energetics Core self-emission. 3 2 1
More informationMeasurement of Long-Scale-Length Plasma Density Profiles for Two-Plasmon Decay Studies
Measurement of Long-Scale-Length Plasma Density Profiles for Two-Plasmon Decay Studies Plasma density scale length at 10 21 cm 3 (nm) 350 300 250 200 150 100 0 Flat foil 2 4 6 8 10 100 Target diameter
More informationHigh-Pressure Phase Transformations of Ramp-Compressed Aluminum and Sodium
High-Pressure Phase Transformations of Ramp-Compressed Aluminum and Sodium by Danae Nicole Polsin Submitted in Partial Fulfillment of the Requirements for the Degree Doctor of Philosophy Supervised by
More informationBulk Fluid Velocity Construction from NIF Neutron Spectral Diagnostics
Bulk Fluid elocity Construction from NIF Neutron Spectral Diagnostics ntof-4.5 DT-Lo (64-309) ntof-3.9 DSF (64-275) ntof-4.5 BT (64-253) MRS ntof-4.5 DT-Hi (64-330) Spec E (90-174) Spec A (116-316) Spec
More informationFirst Results from Cryogenic-Target Implosions on OMEGA
First Results from Cryogenic-Target Implosions on OMEGA MIT 1 mm 1 mm 100 µm C. Stoeckl University of Rochester Laboratory for Laser Energetics 43rd Annual Meeting of the American Physical Society Division
More informationOMEGA Laser-Driven Hydrodynamic Jet Experiments with Relevance to Astrophysics
OMEGA Laser-Driven Hydrodynamic Jet Experiments with Relevance to Astrophysics Astronomical jets Experimental jets Instabilities 1.4 light years Ambient shocks Jet/ambient material interface 2.8 mm Collimated
More informationT T Fusion Neutron Spectrum Measured in Inertial Confinement Fusion Experiment
T T Fusion Neutron Spectrum Measured in Inertial Confinement Fusion Experiment V. Yu. Glebov University of Rochester Laboratory for Laser Energetics 48th Annual Meeting of the American Physical Society
More informationAn Overview of Laser-Driven Magnetized Liner Inertial Fusion on OMEGA
An Overview of Laser-Driven Magnetized Liner Inertial Fusion on OMEGA 4 compression beams MIFEDS coils B z ~ 1 T Preheat beam from P9 1 mm Ring 3 Rings 4 Ring 3 Target support Fill-tube pressure transducer
More informationCross-Beam Energy Transport in Direct-Drive-Implosion Experiments
Cross-Beam Energy Transport in Direct-Drive-Implosion Experiments 35 3 Laser pulse Power (TW) 25 2 15 1 Modeled scattered light Measured 5 D. H. Edgell University of Rochester Laboratory for Laser Energetics.5
More informationHigh-Intensity Laser Interactions with Solid Targets and Implications for Fast-Ignition Experiments on OMEGA EP
n n High-Intensity Laser Interactions with Solid Targets and Implications for Fast-Ignition Experiments on OMEGA EP a n n n n J. Myatt University of Rochester Laboratory for Laser Energetics 48th Annual
More informationEquation-of-State Measurements in Ta 2 O 5 Aerogel
Equation-of-State Measurements in Ta 2 O 5 Aerogel Introduction In the last 15 years, there has been considerable interest in experiments that use laser-driven shock waves to measure high-energy-density
More informationExperiments on Dynamic Overpressure Stabilization of Ablative Richtmyer Meshkov Growth in ICF Targets on OMEGA
Experiments on Dynamic Overpressure Stabilization of Ablative Richtmyer Meshkov Growth in ICF Targets on OMEGA Contributors: V. N. Goncharov P. A. Jaanimagi J. P. Knauer D. D. Meyerhofer O. V. Gotchev
More informationA Tunable (1100-nm to 1500-nm) 50-mJ Laser Enables a Pump-Depleting Plasma-Wave Amplifier
A Tunable (1100-nm to 1500-nm) 50-mJ Laser Enables a Pump-Depleting Plasma-Wave Amplifier Focused intensity (W/cm 2 ) 10 30 10 25 10 20 10 15 10 10 Nonlinear quantum electrodynamics (QED) Ultrarelativistic
More informationStimulated Raman Scattering in Direct-Drive Inertial Confinement Fusion
Stimulated Raman Scattering in Direct-Drive Inertial Confinement Fusion View ports 5 FABS Experiments carried out at the National Ignition Facility FABS power (arbitrary units) Plasma-producing beams (
More informationScaling Hot-Electron Generation to High-Power, Kilojoule-Class Lasers
Scaling Hot-Electron Generation to High-Power, Kilojoule-Class Lasers 75 nm 75 75 5 nm 3 copper target Normalized K b /K a 1.2 1.0 0.8 0.6 0.4 Cold material 1 ps 10 ps 0.2 10 3 10 4 Heating 2.1 kj, 10
More informationISENTROPIC COMPRESSION OF HIGH EXPLOSIVES WITH THE Z ACCELERATOR
ISENTROPIC COMPRESSION OF HIGH EXPLOSIVES WITH THE Z ACCELERATOR David B. Reisman, Jerry W. Forbes, Craig M. Tarver, and Frank Garcia Lawrence Livermore National Laboratory Livermore, CA 94551 Dennis B.
More informationAn Alternative Laser-Speckle-Smoothing Scheme for the NIF
An Alternative Laser-Speckle-Smoothing Scheme for the NIF 1.5-MJ CH-foam target; end of acceleration 1-D SSD, 1.8 Å 1-D MultiFM, 8 Å 2-D SSD, 11 Å 1-D SSD 1-D, multiple-fm SSD 2-D SSD Density (g cm 3 )
More informationAn Overview of Laser-Driven Magnetized Liner Inertial Fusion on OMEGA
An Overview of Laser-Driven Magnetized Liner Inertial Fusion on OMEGA 4 compression beams MIFEDS coils B z ~ 1 T Preheat beam from P9 1 mm Ring 3 Rings 4 Ring 3 Target support Fill-tube pressure transducer
More informationRelativistic Electron Beams, Forward Thomson Scattering, and Raman Scattering. A. Simon. Laboratory for Laser Energetics, U.
Relativistic Electron Beams, Forward Thomson Scattering, and Raman Scattering A. Simon Laboratory for Laser Energetics, U. of Rochester Experiments at LLE (see abstract by D. Hicks at this meeting) show
More informationProgress in Direct-Drive Inertial Confinement Fusion Research
Progress in Direct-Drive Inertial Confinement Fusion Research Ignition and Gain Total GtRH n (g/cm 2 ) 2 1.5.2.1 IAEA 21 DT, 22 kj IAEA 28 DT, 16 kj NIF.5 MJ NIF point design 1.5 MJ 1-D marginal ignition
More informationObservations of the collapse of asymmetrically driven convergent shocks. 26 June 2009
PSFC/JA-8-8 Observations of the collapse of asymmetrically driven convergent shocks J. R. Rygg, J. A. Frenje, C. K. Li, F. H. Seguin, R. D. Petrasso, F.J. Marshalli, J. A. Delettrez, J.P. Knauer, D.D.
More informationUse of the Z Accelerator for Isentropic and Shock Compression Studies
1 Use of the Z Accelerator for Isentropic and Shock Compression Studies Marcus D. Knudson 1.1 Introduction The high-pressure equation of state (EOS) of materials is usually determined by shock compression
More informationElastic and Inelastic Shock Compression of Diamond and Other Minerals. Ryan Stewart McWilliams. B.S. (University of Massachusetts, Amherst) 2001
Elastic and Inelastic Shock Compression of Diamond and Other Minerals by Ryan Stewart McWilliams B.S. (University of Massachusetts, Amherst) A dissertation submitted in partial satisfaction of the requirements
More informationX-Ray Spectral Measurements of Cryogenic Capsules Imploded by OMEGA
X-Ray Spectral Measurements of Cryogenic Capsules Imploded by OMEGA 1 15 1 14 F. J. Marshall University of Rochester Laboratory for Laser Energetics kt =.65 kev 48386 (v ice = 1.5 nm) 2 48385 (v ice =
More informationHigh-Performance Inertial Confinement Fusion Target Implosions on OMEGA
High-Performance Inertial Confinement Fusion Target Implosions on OMEGA D.D. Meyerhofer 1), R.L. McCrory 1), R. Betti 1), T.R. Boehly 1), D.T. Casey, 2), T.J.B. Collins 1), R.S. Craxton 1), J.A. Delettrez
More informationDirect-Drive, High-Convergence-Ratio Implosion Studies on the OMEGA Laser System
Direct-Drive, High-Convergence-Ratio Implosion Studies on the OMEGA Laser System F. J. Marshall, J. A. Delettrez, R. Epstein, V. Yu. Glebov, D. D. Meyerhofer, R. D. Petrasso,P.B.Radha,V.A.Smalyuk,J.M.Soures,C.Stoekl,R.P.J.Town,
More informationCharged-Particle Spectra Using Particle Tracking on a Two-Dimensional Grid. P. B. Radha, J. A. Delettrez, R. Epstein, S. Skupsky, and J. M.
Charged-Particle Spectra Using Particle Tracking on a Two-Dimensional Grid P. B. Radha, J. A. Delettrez, R. Epstein, S. Skupsky, and J. M. Soures Laboratory for Laser Energetics, U. of Rochester S. Cremer
More informationScience outreach on NIF: possibilities for astrophysics experiments
BAR_SBER_talk.ppt;1 Science outreach on NIF: possibilities for astrophysics experiments Presentation to the SABER workshop, Stanford Linear Accelerator Center, March 15-16, 2006 Bruce A. Remington Group
More informationModeling the Effects Mix at the Hot Spot Surface in 1-D Simulations of Cryogenic All-DT Ignition Capsule Implosions
Modeling the Effects Mix at the Hot Spot Surface in 1-D Simulations of Cryogenic All-DT Ignition Capsule Implosions 14 Time = 1.4 ns 25 Ion temperature (kev) 12 1 8 6 4 2 22.2 8.7 1.5 Gain =.45 2 15 1
More informationMagnetic Reconnection and Plasma Dynamics in Two-Beam Laser Solid Interactions
Magnetic Reconnection and Plasma Dynamics in Two-Beam Laser Solid Interactions P. M. Nilson University of Rochester Laboratory for Laser Energetics 48th Annual Meeting of the American Physical Society
More informationLaser-driven shock experiments on precompressed water: Implications for icy giant planets
THE JOURNAL OF CHEMICAL PHYSICS 125, 014701 2006 Laser-driven shock experiments on precompressed water: Implications for icy giant planets Kanani K. M. Lee a Department of Earth & Planetary Science, University
More informationDensity Functional Theory Methods for Transport and Optical Properties: Application to Warm Dense Silicon
Density Functional Theory Methods for Transport and Optical Properties: Application to Warm Dense Silicon 2200 Si, T = 62.5 kk K-edge position (ev) 2100 2000 1900 DFT (shifted by 50 ev) AOT Significant
More informationFukuoka, Japan. 23 August National Ignition Facility (NIF) Laboratory for Laser Energetics (OPERA)
Fukuoka, Japan 23 August 2012 National Ignition Facility (NIF) LLNL-PRES-562760 This work was performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under
More informationReaching the Extremes of Planet Formation Shockwave Experiments in the Giant Impact Regime
Reaching the Extremes of Planet Formation Shockwave Experiments in the Giant Impact Regime Sarah T. Stewart Dept. Earth & Planetary Sciences, UC Davis Planet Formation Art by NASA Giant Impacts Art by
More informationDevelopment of a WDM platform for chargedparticle stopping experiments
Journal of Physics: Conference Series PAPER OPEN ACCESS Development of a WDM platform for chargedparticle stopping experiments To cite this article: A B Zylstra et al 216 J. Phys.: Conf. Ser. 717 12118
More informationAreal-Density-Growth Measurements with Proton Spectroscopy on OMEGA
Areal-Density-Growth Measurements with Proton Spectroscopy on OMEGA Areal density (mg/cm ) 5 15 1 5 4 atm D 3 He 1.6 1... 1 1 1 1 19 1 1 Neutron rate (s 1 ) V. A. Smalyuk Laboratory for Laser Energetics
More informationAn Investigation of Two-Plasmon Decay Localization in Spherical Implosion Experiments on OMEGA
An Investigation of Two-lasmon Decay Localization in Spherical Implosion Experiments on OMEGA 1 12 50 23 14 27 18 32 J. F. Myatt University of Rochester Laboratory for Laser Energetics 24 56th Annual Meeting
More informationThe 1-D Cryogenic Implosion Campaign on OMEGA
The 1-D Cryogenic Implosion Campaign on OMEGA Yield Exp (#1 14 ) 1.4 1.2 1..8.6.4 1-D campaign neutron yields.2 R. Betti University of Rochester Laboratory for Laser Energetics.2.4.6.8 1. 1.2 LILAC 4 8.
More informationPolar-Drive Hot-Spot Ignition Design for the National Ignition Facility
Polar-Drive Hot-Spot Ignition Design for the National Ignition Facility At ignition, Gain=40 T. J. B. Collins University of Rochester Laboratory for Laser Energetics International Shock-Ignition Workshop
More informationHigh-Resolving-Power, Ultrafast Streaked X-Ray Spectroscopy on OMEGA EP
High-Resolving-Power, Ultrafast Streaked X-Ray Spectroscopy on OMEGA EP Channel 1 Crystal chamber X-ray streak camera Chamber wall Re-entrant tube with collimators Normalized signal 0.8 0.6 0.4 0.2 Pulse
More informationThe Sound Velocity and Grüneisen Parameter of Fused Silica, Periclase, and Polystyrene shocked to TPa pressures
The Sound Velocity and Grüneisen Parameter of Fused Silica, Periclase, and Polystyrene shocked to TPa pressures Chad August McCoy Submitted in Partial Fulfillment of the Requirements for the Degree Doctor
More informationPrecision Equation of State Measurements on. Hydrocarbons in the High Energy Density Regime. Maria Alejandra Barrios Garcia
Precision Equation of State Measurements on Hydrocarbons in the High Energy Density Regime by Maria Alejandra Barrios Garcia Submitted in Partial Fulfillment of the Requirements for the Degree Doctor of
More informationEquation of state of fluid helium at high temperatures and densities
Science in China Ser. G Physics, Mechanics & Astronomy 005 Vol.48 No.6 695 705 695 Equation of state of fluid helium at high temperatures and densities CAI Lingcang, CHEN Qifeng, GU Yunjun, ZHANG Ying,
More informationJournal of Applied and Theoretical Physics Research
Journal of Applied and Theoretical Physics Research Diagnostics and Production of Warm Dense Matter with Multishock Reverberation Compression Technique Qifeng Chen *, Zhiguo Li, YunjunGu, Jun Zheng, Chengjun
More informationImproved target stability using picket pulses to increase and shape the ablator adiabat a
PHYSICS OF PLASMAS 12, 056306 2005 Improved target stability using picket pulses to increase and shape the ablator adiabat a J. P. Knauer, b K. Anderson, R. Betti, T. J. B. Collins, V. N. Goncharov, P.
More informationCalculation of Half-Harmonic Emission Generated by the Two-Plasmon Decay Instability at exit boundary
Calculation of Half-Harmonic Emission Generated by the wo-plasmon Decay Instability ^ h E D~ at exit boundary Arbitrary units 0.08 0.06 0.04 0.0 inear conversion Nonlinear conversion homson down-scattering
More informationExploration of the Feasibility of Polar Drive on the LMJ. Lindsay M. Mitchel. Spencerport High School. Spencerport, New York
Exploration of the Feasibility of Polar Drive on the LMJ Lindsay M. Mitchel Spencerport High School Spencerport, New York Advisor: Dr. R. S. Craxton Laboratory for Laser Energetics University of Rochester
More informationCapsule-areal-density asymmetries inferred from 14.7-MeV deuterium helium protons in direct-drive OMEGA implosions a
PHYSICS OF PLASMAS VOLUME 10, NUMBER 5 MAY 2003 Capsule-areal-density asymmetries inferred from 14.7-MeV deuterium helium protons in direct-drive OMEGA implosions a C. K. Li, b) F. H. Séguin, J. A. Frenje,
More informationThomson Scattering from Nonlinear Electron Plasma Waves
Thomson Scattering from Nonlinear Electron Plasma Waves A. DAVIES, 1 J. KATZ, 1 S. BUCHT, 1 D. HABERBERGER, 1 J. BROMAGE, 1 J. D. ZUEGEL, 1 J. D. SADLER, 2 P. A. NORREYS, 3 R. BINGHAM, 4 R. TRINES, 5 L.O.
More informationUsing a Relativistic Electron Beam to Generate Warm Dense Matter for Equation of State Studies
Using a Relativistic Electron Beam to Generate Warm Dense Matter for Equation of State Studies DOE/NV/25946--1257 M. J. Berninger National Security Technologies, LLC, Los Alamos, NM 87544 T. J. T. Kwan,
More informationIntegrated Modeling of Fast Ignition Experiments
Integrated Modeling of Fast Ignition Experiments Presented to: 9th International Fast Ignition Workshop Cambridge, MA November 3-5, 2006 R. P. J. Town AX-Division Lawrence Livermore National Laboratory
More informationWhere are we with laser fusion?
Where are we with laser fusion? R. Betti Laboratory for Laser Energetics Fusion Science Center Dept. Mechanical Engineering and Physics & Astronomy University of Rochester HEDSA HEDP Summer School August
More informationTwo-Plasmon Decay Driven by Multiple Incoherent Laser Beams
Two-Plasmon Decay Driven by Multiple Incoherent Laser Beams 2 # # E^xyt,, h dy dy^arbitrary h n Two coherent e /n c plane waves Dm = 8.8 Å Dm = 17.6 Å.19.21.23.25.27.19.21.23.25.27.19.21.23.25.27 2 Arbitrary
More informationAnalysis of a Direct-Drive Ignition Capsule Design for the National Ignition Facility
Analysis of a Direct-Drive Ignition Capsule Design for the National Ignition Facility R (mm) 1 8 6 4 End of acceleration phase r(g/cc) 7.5 3.5.5 Gain 4 3 2 1 1 2 2 s (mm) 5 25 25 5 Z (mm) P. W. McKenty
More informationRECEIVED SEQ
SHOCK HUGONOT AND RELEASE STATES N CONCRETE MXTURES WTH DFFERENT AGGREGATE SZES FROM Y 3 TO 23 GPA C. A. Hall, L. C. Chhabildas, and W. D. Reinhart Sandia National Laboratories, Albuquerque, NM 87185-1
More informationX-ray scattering measurements of dissociation-induced metallization of dynamically compressed deuterium
SLAC-PUB-16446 X-ray scattering measurements of dissociation-induced metallization of dynamically compressed deuterium Authors: P. Davis 1,2*, T. Döppner 2, J.R. Rygg 2, C. Fortmann 2,3, L. Divol 2, A.
More informationIn nature, and specifically when considering planets, high pressures
Achieving high-density states through shock-wave loading of precompressed samples Raymond Jeanloz*, Peter M. Celliers, Gilbert W. Collins, Jon H. Eggert, Kanani K. M. Lee, R. Stewart McWilliams*, Stéphanie
More informationSupporting Online Material for
www.sciencemag.org/cgi/content/full/319/5867/1223/dc1 Supporting Online Material for Proton Radiography of Inertial Fusion Implosions J. R. Rygg, F. H. Séguin, C. K. Li, J. A. Frenje, M. J.-E. Manuel,
More informationTwo-Plasmon-Decay Hot Electron Generation and Reheating in OMEGA Direct-Drive-Implosion Experiments
Two-Plasmon-Decay Hot Electron Generation and Reheating in OMEGA Direct-Drive-Implosion Experiments r 1/4 ~500 nm Ne To sheath e Laser r e To core 20 nm J. F. Myatt University of Rochester Laboratory for
More informationMeasurements of fuel and shell areal densities of OMEGA capsule implosions using elastically scattered protons
PHYSICS OF PLASMAS VOLUME 9, NUMBER 11 NOVEMBER 2002 Measurements of fuel and shell areal densities of OMEGA capsule implosions using elastically scattered protons J. A. Frenje, C. K. Li, F. H. Séguin,
More informationDirect-drive fuel-assembly experiments with gas-filled, cone-in-shell, fast-ignitor targets on the OMEGA Laser
INSTITUTE OF PHYSICS PUBLISHING Plasma Phys. Control. Fusion 47 (25) B859 B867 PLASMA PHYSICS AND CONTROLLED FUSION doi:1.188/741-3335/47/12b/s68 Direct-drive fuel-assembly experiments with gas-filled,
More informationThe MEC endstation at LCLS New opportunities for high energy density science
The MEC endstation at LCLS New opportunities for high energy density science Singapore, fttp-5, April 20th, 2011 Bob Nagler BNagler@slac.stanford.edu SLAC national accelerator laboratory 1 Overview Motivation
More informationLaser Induced Shock Pressure Multiplication in Multi Layer Thin Foil Targets
1 Laser Induced Shock Pressure Multiplication in Multi Layer Thin Foil Targets Mayank Shukla 1), Yogesh Kashyap 1), P. S. Sarkar 1), A. Sinha 1), H. C. Pant 2), R.S.Rao 1), N.K.Gupta 1), B.K.Godwal 1)
More informationThe National Ignition Campaign: Status and Progress
1 The National Ignition Campaign: Status and Progress E. I. Moses Lawrence Livermore National Laboratory, Livermore, CA 94450 Abstract. The National Ignition Facility (NIF) at Lawrence Livermore National
More informationSimulation of Plasma Wakefields and Weibel Instability of Electron Beams in Plasma Using Codes LSP and OSIRIS
Simulation of Plasma Wakefields and Weibel Instability of Electron Beams in Plasma Using Codes and OSIRIS 15 Electron density Beam density Plasma density 4 6 4 A. Solodov, C. Ren, J. Myatt, and R. Betti
More informationShock Wave Experiments Using PDV: Window Characterization at 1550 nm
Shock Wave Experiments Using PDV: Window Characterization at 1550 nm B. J. Jensen (DE-9), D. Holtkamp (P-22), D. H. Dolan (Sandia) Los Alamos National Laboratory Acknowlegements: Tim Pierce (DE-9), Mark
More informationA broadband proton backlighting platform to probe shock propagation in low-density systems
PSFC/JA-17-26 A broadband proton backlighting platform to probe shock propagation in low-density systems H. Sio 1, R. Hua 3, Y. Ping 2, C. McGuffey 3, F. Beg 3, R. Heeter 2, C. K. Li 1, R. D. Petrasso
More informationThe MIT Accelerator for development of ICF diagnostics at OMEGA / OMEGA-EP and the NIF
Introduction The MIT Accelerator for development of ICF diagnostics at OMEGA / OMEGA-EP and the NIF SBDs d + or 3 He +(2+) D or 3 He target Present MIT Graduate Students and the MIT Accelerator OLUG 21
More informationThe Hugoniot and Strength of Ultem 1000 Polyetherimide
J. dynamic behavior mater. (5) :5 36 DOI.7/s487-5-9-z The Hugoniot and Strength of Ultem Polyetherimide Christopher Neel Lalit Chhabildas Received: July 5 / Accepted: July 5 / Published online: 7 August
More informationInertial Confinement Fusion
Inertial Confinement Fusion Prof. Dr. Mathias Groth Aalto University School of Science, Department of Applied Physics Outline Principles of inertial confinement fusion Implosion/compression physics Direct
More informationMeasured dependence of nuclear burn region size on implosion parameters in inertial confinement fusion experiments
PHYSICS OF PLASMAS 13, 082704 2006 Measured dependence of nuclear burn region size on implosion parameters in inertial confinement fusion experiments F. H. Séguin, a J. L. DeCiantis, J. A. Frenje, C. K.
More informationExperimental Demonstration of X-Ray Drive Enhancement with Rugby-Shaped Hohlraums
Experimental Demonstration of X-Ray Drive Enhancement with Rugby-Shaped Hohlraums The MIT Faculty has made this article openly available. Please share how this access benefits you. Your story matters.
More informationFirst-Principles Thermal Conductivity of Deuterium for Inertial Confinement Fusion Applications
First-Principles Thermal Conductivity of Deuterium for Inertial Confinement Fusion Applications Introduction As a grand challenge to harvest the ultimate energy source in a controlled fashion, inertial
More informationThree-Dimensional Studies of the Effect of Residual Kinetic Energy on Yield Degradation
Threeimensional Studies of the Effect of Residual Kinetic Energy on Yield Degradation Kinetic energy density for single-mode, = 1, m = 6 1. YOC model = (1 RKE) 4.4 1 3 to ( Jm / ) 5.797 1 15 1.44 1 1 z
More informationThe numerical analysis of food processing using shock wave
Int. Jnl. of Multiphysics Volume 3 Number 4 2009 337 The numerical analysis of food processing using shock wave Yusuke Yamashita*, Asuka Oda*, Hironori Maehara*, Toshiaki Watanabe**, M. Motamedi*** and
More informationThe effect of shock dynamics on compressibility of ignition-scale National Ignition Facility implosions
The effect of shock dynamics on compressibility of ignition-scale National Ignition Facility implosions The MIT Faculty has made this article openly available. Please share how this access benefits you.
More informationDual Nuclear Shock Burn:
Dual Nuclear Shock Burn: Experiment, Simulation, and the Guderley Model J.R. Rygg, J.A. Frenje, C.K. Li, F.H. Séguin, and R.D. Petrasso MIT PSFC J.A. Delettrez, V.Yu Glebov, D.D. Meyerhofer, and T.C. Sangster
More information