An Alternative Laser-Speckle-Smoothing Scheme for the NIF
|
|
|
- Tracey Scott
- 5 years ago
- Views:
Transcription
1 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 ) 8 z (nm) v rms = 21 nm v rms = 5.6 nm v rms = 3.5 nm 2 4 r (nm) 2 4 r (nm) 2 4 r (nm) J. A. Marozas University of Rochester Laboratory for Laser Energetics 49th Annual Meeting of the American Physical Society Division of Plasma Physics Orlando, FL November 27
2 Summary Multiple FM modulators in 1-D reduces imprint to 2-D SSD levels Multiple FM modulators in 1-D (1-D MultiFM SSD*) reduced complexity, i.e., no second dimension applied in a fiber within a rack-mounted unit, so layout impact is minimal because bulk optics are not needed takes advantage of multiple color cycles without the disadvantage of coherence maxima in the spectrum simulations show that imprint levels are comparable to 2-D SSD in direct drive and should apply to polar direct drive TC7998 *J. E. Rothenberg, J. Opt. Soc. Am. B 14, 1664 (1997).
3 Collaborators T. J. B. Collins J. D. Zuegel University of Rochester Laboratory for Laser Energetics
4 Implementing 2-D SSD on the NIF will be expensive and technically challenging 2-D SSD is required for igniting 1-MJ and 1.5-MJ direct-drive designs* This result assumed single FM modulators Bulk optics modulators are required for the second SSD dimension space constraints in the NIF PAM s 1 THz (12 Å) of 2-D SSD requires dual-frequency triplers Simulations show that imprint from multiple FM SSD modulators in 1-D is comparable to 2-D SSD Less bandwidth is used; 65 GHz (8 Å) Potentially can get to.5 THz (6 Å) with a single-frequency-conversion crystal using multiple FM modulators in 1-D Testable on OMEGA EP TC85 * T. J. B. Collins, Phys. Plasmas 14, 5638 (27).
5 Laser-speckle smoothing is characterized by the coherence time and the angular divergence v rms (%), l-modes 3: log_ vrmsi - log_ v i + 7log_ t log t 2 ci - ] ga t 1 t 1 t c asym 1-D SSD 2-D SSD Di SSD / Angular divergence / Coherence time Asymptotic level " (l Di SSD ) 2 1 t (ps) Both the coherence time and asymptotic level are functions of l-mode TC7999
6 SSD smoothing can be improved by increasing the divergence and/or the inverse coherence time v rms (%), l-modes 3:6 TC Increasing 1-1 " l Dm N cc Increasing 1 Di SSD Dm : N o 1 3 t (ps) Increasing divergence allowing divergence to be closer to the existing pinhole Di SSD = 1 nrad, Di pinhole = 3 nrad dynamic bandwidth reduction* can make this possible without risk of pinhole closure Increasing the inverse coherence time Increasing N cc and/or Dm does both \ m cc 1-D SSD Dm / Bandwidth N cc / Color cycles o m / ulator frequency *P. W. McKenty et al., Bull. Am. Phys. Soc. 51, 295 (26).
7 Increasing the inverse coherence time,, allows the target to experience a smoother spot for a longer period 1 1 v rms (%), l-modes 3:6 N cc = 2 N cc = 4 N cc = 8 Di SSD, Dm held fixed Di SSD 1-D SSD t - 1 c " l Dm N cc \ Dm : N o m cc t (ps) Implies o m increases as N cc increases TC81
8 Increasing the color cycles increases for the lower l-modes and produces resonances for the higher l-modes 1 1 (GHz) \ l, : D m : N cc = 4 N cc = 8 N cc l-modes - 1 \ Dm N cc = 2 1-D SSD Improved smoothing in the lower l-modes occurs at the expense of higher l-mode uniformity TC82
9 Employing multiple FM modulators in 1-D reduces the peak-to-peak variations in the inverse coherence time 1 (GHz) N cc = 8 1-D SSD, N cc = 8 #1 Di SSD fixed 4 o m l-mode Di SSD \ Dm : N o m cc TC83
10 Employing multiple FM modulators in 1-D reduces the peak-to-peak variations in the inverse coherence time 1 (GHz) MultiFM N cc = 11, 9, 8 N cc = 8 1-D SSD, N cc = 8 #1 MultiFM, N cc = 11, 9, 8 #1 Di SSD fixed 4 o m #2 # o m 4.5 o m 4 o m Di SSD increased l-mode Di SSD \ Dm : N o -1 decreased by 4, and Di SSD increased by 2 relative to 1-D SSD m cc TC83
11 Employing multiple FM modulators in 1-D reduces the peak-to-peak variations in the inverse coherence time 1 (GHz) MultiFM N cc = 11, 9, 8 t - 1 c " l Dm N cc N cc = 8 1-D SSD, N cc = 8 #1 MultiFM, N cc = 11, 9, 8 #1 Di SSD fixed 4 o m #2 #3 2 t - 1 c " Dm 5.5 o m 4.5 o m 4 o m Di SSD increased l-mode Di SSD \ Dm : N o -1 decreased by 4, and Di SSD increased by 2 relative to 1-D SSD m cc TC83
12 Employing multiple FM modulators in 1-D reduces the peak-to-peak variations in the inverse coherence time 1 (GHz) MultiFM N cc = 11, 9, 8 t - 1 c " l Dm N cc N cc = 8 MultiFM N cc = 18, 14, 12 1-D SSD, N cc = 8 #1 MultiFM, N cc = 11, 9, 8 #1 Di SSD fixed 4 o m #2 #3 2 t - 1 c " Dm 5.5 o m 4.5 o m 4 o m Di SSD increased 2 TC l-mode Di SSD \ Dm : N o -1 decreased by 4, and Di SSD increased by 2 relative to 1-D SSD Lower l-mode performance can be keponstant by keeping the product Dm N cc and Di SSD constant Targets with low IFAR are more stable to higher l-mode feedthrough m cc
13 ulator frequencies required to match the 4 color-cycle 1-D SSD are lower 14 1 (GHz) N cc = l-mode TC84
14 ulator frequencies required to match the 4 color-cycle 1-D SSD are lower 14 1 (GHz) N cc = 4 MultiFM N cc = 1, 9 Dm = 8 Å l-mode The bandwidth is reduced to 8 Å (65 GHz), the divergence is reduced to 1 nrad, and the modulator frequencies are reduced to ~5 GHz. TC84
15 Simulations show that multiple FM modulators in 1-D reduces imprint to 2-D SSD levels 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 ) 8 z (nm) v rms = 21 nm v rms = 5.6 nm v rms = 3.5 nm 2 4 r (nm) 2 4 r (nm) 2 4 r (nm) Simulations are in progress to confirm gain TC7944a
16 Summary/Conclusions Multiple FM modulators in 1-D reduces imprint to 2-D SSD levels Multiple FM modulators in 1-D (1-D MultiFM SSD*) reduced complexity, i.e., no second dimension applied in a fiber within a rack-mounted unit, so layout impact is minimal because bulk optics are not needed takes advantage of multiple color cycles without the disadvantage of coherence maxima in the spectrum simulations show that imprint levels are comparable to 2-D SSD in direct drive and should apply to polar direct drive TC7998 *J. E. Rothenberg, J. Opt. Soc. Am. B 14, 1664 (1997).
Picket Pulses with 1-D MultiFM Smoothing by Spectral Dispersion (SSD) for the NIF
Picket Pulses with 1-D MultiFM Smoothing by Spectral Dispersion (SSD) for the NIF 500 MultiFM DesignSpace = [21.2,22.8,31.9] University of Roch Using: analyzelmf 500 MultiFM DesignSpace = [21.2,22.8,31.9]
Multiple-FM Smoothing by Spectral Dispersion An Augmented Laser Speckle Smoothing Scheme
Multiple-FM Smoothing by Spectral Dispersion An Augmented Laser Speckle Smoothing Scheme Introduction Polar-drive (PD) 1 4 implosions on the National Ignition Facility (NIF) require smoothing of the laser-imposed
Modeling 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
Analysis 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
Polar-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
Analysis 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
Two-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
First 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
Two-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
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.
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
Mitigation 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
Polar 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
Adiabat 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
Experiments 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
Low density plasma experiments investigating laser propagation and proton acceleration
Low density plasma experiments investigating laser propagation and proton acceleration L Willingale, K Krushelnick, A Maksimchuk Center for Ultrafast Optical Science, University of Michigan, USA W Nazarov
Stimulated 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 (
Direct-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,
Ion-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
Collimation 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
The 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.
X-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 =
The 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
Scaling 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
Measuring 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
Measurement 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
An 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
Framed 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
Cross-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
Monochromatic 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,
High-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
OMEGA 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
T 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
Advanced 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
Progress in Direct-Drive Inertial Confinement Fusion Research at the Laboratory for Laser Energetics
1 Progress in Direct-Drive Inertial Confinement Fusion Research at the Laboratory for Laser Energetics R.L. McCrory 1), D.D. Meyerhofer 1), S.J. Loucks 1), S. Skupsky 1) R.E. Bahr 1), R. Betti 1), T.R.
Relativistic 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
Bulk 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
Improved 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.
Capsule-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,
Determination 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
Progress 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
High-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
Optical and Plasma Smoothing of Laser Imprinting in Targets Driven by Lasers with SSD Bandwidths up to 1 THz
Optical and Plasma Smoothing of Laser Imprinting in Targets Driven by Lasers with SSD Bandwidths up to 1 THz Introduction A key issue for inertial confinement fusion (ICF) 1 3 is the Rayleigh Taylor (RT)
A 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
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
Progress Toward Demonstration of Ignition Hydro-equivalence on OMEGA
Progress Toward Demonstration of Ignition Hydro-equivalence on OMEGA Hot-spot pressure (Gbar) 12 1 8 6 4 2 1 1-D LILAC calculations Convergence ratio Inferred from measurements 12 14 16 18 2 3-D ASTER
Modeling Nonlinear Optics Of Plasmas (Relevant To IFE)
Modeling Nonlinear Optics Of Plasmas (Relevant To IFE) F.S.Tsung and the UCLA Simulation Group University of California, Los Angeles (UCLA) 1 F. S. Tsung/OSIRIS Workshop 2017 Summary/Conclusion Introduction
Measurements of Strain-Induced Refractive-Index Changes in LiF Using Direct-Drive Ramp Compression
Measurements of Strain-Induced Refractive-Index Changes in LiF Using Direct-Drive Ramp Compression Apparent particle velocity (nm/ns) 16 12 8 4 1 GPa 8 GPa 2 4 6 8 1 12 14 True particle velocity (nm/ns)
Hydrodynamic growth experiments with the 3-D, native-roughness modulations on NIF
Journal of Physics: Conference Series PAPER OPEN ACCESS Hydrodynamic growth experiments with the 3-D, native-roughness modulations on NIF To cite this article: V A Smalyuk et al 2016 J. Phys.: Conf. Ser.
Rayleigh Taylor Growth Measurements of 3-D Modulations
Rayleigh Taylor Growth Measurements of -D Modulations in a Nonlinear Regime Introduction Rayleigh Taylor (RT), instability is of critical importance in inertial confinement fusion (ICF) and astrophysics.
High-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
Calculation 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
Exploration 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
Volume 71 April-June 1997 DOE/SF/ : UNIVERSITY OF ROCHESTER ./ 4 LABORATORY FOR LASER ENERGETICS. LLE Review. -$ Quarterly Report
' 4: UNIVERSITY OF ROCHESTER./ 4 LABORATORY FOR LASER ENERGETICS Volume 71 April-June 1997 DOE/SF/19460-186 LLE Review -$ Quarterly Report 7 About the Cover: Photograph of planar-foil target used for Rayleigh
Two-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
High Gain Direct Drive Target Designs and Supporting Experiments with KrF )
High Gain Direct Drive Target Designs and Supporting Experiments with KrF ) Max KARASIK, Yefim AGLITSKIY 1), Jason W. BATES, Denis G. COLOMBANT 4), David M. KEHNE, Wallace M. MANHEIMER 2), Nathan METZLER
Diagnosing OMEGA and NIF Implosions Using the D 3 He Spectrum Line Width
Introduction Diagnosing OMEGA and NIF Implosions Using the D 3 He Spectrum Line Width A. B. Zylstra, M. Rosenberg, N. Sinenian, C. Li, F. Seguin, J. Frenje, R. Petrasso (MIT) R. Rygg, D. Hicks, S. Friedrich,
The 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
An 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
The Effect of Laser Spot Shapes on Polar-Direct-Drive Implosions on the National. Ignition Facility. 250 East River Road, Rochester, NY 14623
The Effect of Laser Spot Shapes on Polar-Direct-Drive Implosions on the National Ignition Facility F. Weilacher, 1,2 P. B. Radha, 1,* T. J. B. Collins, 1 and J. A. Marozas 1 1 Laboratory for Laser Energetics,
Path to a direct-drive ignition facility for fusion energy research that requires substantially less laser energy
Path to a direct-drive ignition facility for fusion energy research that requires substantially less laser energy NRL Laser Fusion High Average Power Laser Program Workshop Lawrence Livermore National
THz field strength larger than MV/cm generated in organic crystal
SwissFEL Wir schaffen Wissen heute für morgen 1 2 C. Vicario 1, R. Clemens 1 and C. P. Hauri 1,2 THz field strength larger than MV/cm generated in organic crystal 10/16/12 Workshop on High Field THz science
Observations 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.
Response to Comment on "The National Ignition Facility Laser Performance Status"
UCRL-JRNL-237304 Response to Comment on "The National Ignition Facility Laser Performance Status" C. A. Haynam, R. A. Sacks, E. I. Moses, K. Manes, S. Haan, M. L. Spaeth December 17, 2007 Applied Optics
Polar-drive implosions on OMEGA and the National Ignition Facility
Polar-drive implosions on OMEGA and the National Ignition Facility P. B. Radha, F. J. Marshall, J. A. Marozas, A. Shvydky, I. Gabalski et al. Citation: Phys. Plasmas 20, 056306 (2013); doi: 10.1063/1.4803083
Update on MJ Laser Target Physics
Update on MJ Laser Target Physics P.A.Holstein, J.Giorla, M.Casanova, F.Chaland, C.Cherfils, E. Dattolo, D.Galmiche, S.Laffite, E.Lefebvre, P.Loiseau, M.C. Monteil, F.Poggi, G.Riazuelo, Y.Saillard CEA
Thomson 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.
Density 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
Richard Miles and Arthur Dogariu. Mechanical and Aerospace Engineering Princeton University, Princeton, NJ 08540, USA
Richard Miles and Arthur Dogariu Mechanical and Aerospace Engineering Princeton University, Princeton, NJ 08540, USA Workshop on Oxygen Plasma Kinetics Sept 20, 2016 Financial support: ONR and MetroLaser
Polar-Drive Implosions on OMEGA and the National Ignition Facility
Polar-Drive Implosions on OMEGA and the National Ignition Facility Introduction Polar drive (PD) 1 provides the capability to perform directdrive ignition experiments on laser facilities like the National
Multibeam Stimulated Brillouin Scattering from Hot Solid-Target Plasmas
Multibeam Stimulated Brillouin Scattering from Hot Solid-Target Plasmas Introduction We report on the first multibeam laser plasma interaction experiments with a critical density surface present at all
Direct-Drive Ignition Designs with Mid-Z Ablators
Direct-Drive Ignition Designs with Mid-Z Ablators Introduction In laser-driven inertial confinement fusion (ICF), 1, a spherical capsule filled with deuterium tritium (DT) is irradiated by direct laser
Numerical Study of Large-Scale, Laser-Induced Nonuniformities in Cryogenic OMEGA Implosions
Numerical Sudy of Large-Scale, Laser-Induced Nonuniformiies in Cryogenic OMEGA Implosions 1 nm Offse = 2.56 ns 3-D ASTER simulaions of sho 78378 22 16 8 T i (kev) 3 2 1 4- o 8-keV x ray 17% Maximum Minimum
PoS(EPS-HEP2017)533. First Physics Results of AWAKE, a Plasma Wakefield Acceleration Experiment at CERN. Patric Muggli, Allen Caldwell
First Physics Results of AWAKE, a Plasma Wakefield Acceleration Experiment at CERN Patric Muggli, Max Planck Institute for Physics E-mail: muggli@mpp.mpg.de AWAKE is a plasma wakefield acceleration experiment
Magnetic 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
THz Electron Gun Development. Emilio Nanni 3/30/2016
THz Electron Gun Development Emilio Nanni 3/30/2016 Outline Motivation Experimental Demonstration of THz Acceleration THz Generation Accelerating Structure and Results Moving Forward Parametric THz Amplifiers
Determination of Hot-Electron Conversion Efficiencies and Isochoric Heating of Low-Mass Targets Irradiated by the Multi-Terawatt Laser
Determination of Hot-Electron Conversion Efficiencies and Isochoric Heating of Low-Mass Targets Irradiated by the Multi-Terawatt Laser 1.2 Total energy K a /laser energy 1 3 1 4 Refluxing No refluxing
ICF ignition and the Lawson criterion
ICF ignition and the Lawson criterion Riccardo Betti Fusion Science Center Laboratory for Laser Energetics, University of Rochester Seminar Massachusetts Institute of Technology, January 0, 010, Cambridge
Fukuoka, 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
An 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
Physics of Laser-Plasma Interaction and Shock Ignition of Fusion Reactions
Modelisation and Numerical Methods for Hot Plasmas Talence, October 14, 2015 Physics of Laser-Plasma Interaction and Shock Ignition of Fusion Reactions V. T. Tikhonchuk, A. Colaïtis, A. Vallet, E. Llor
Theory and simulations of hydrodynamic instabilities in inertial fusion
Theory and simulations of hydrodynamic instabilities in inertial fusion R. Betti Fusion Science Center, Laboratory for Laser Energetics, University of Rochester IPAM/UCLA Long Program PL2012 - March 12
Polarization Smoothing for the National Ignition Facility
UCRL-JC- 129769 PREPRINT Polarization Smoothing for the National Ignition Facility J. E. Rothenberg This paper was prepared for submittal to the Third Annual International Conference on Solid State Lasers
High-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
Charged-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
Breakup of Ring Beams Carrying Orbital Angular Momentum in Sodium Vapor
Breakup of Ring Beams Carrying Orbital Angular Momentum in Sodium Vapor Petros Zerom, Matthew S. Bigelow and Robert W. Boyd The Institute of Optics, University of Rochester, Rochester, New York 14627 Now
Three-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
Polar Direct-Drive Simulations for a Laser-Driven HYLIFE-II Fusion Reactor. Katherine Manfred
Polar Direct-Drive Simulations for a Laser-Driven HYLIFE-II Fusion Reactor Katherine Manfred Polar Direct-Drive Simulations for a Laser-Driven HYLIFE-II Fusion Reactor Katherine M. Manfred Fairport High
MaRIE. MaRIE X-Ray Free-Electron Laser Pre-Conceptual Design
Operated by Los Alamos National Security, LLC, for the U.S. Department of Energy MaRIE (Matter-Radiation Interactions in Extremes) MaRIE X-Ray Free-Electron Laser Pre-Conceptual Design B. Carlsten, C.
Advanced Vitreous State The Physical Properties of Glass
Advanced Vitreous State The Physical Properties of Glass Active Optical Properties of Glass Lecture 21: Nonlinear Optics in Glass-Applications Denise Krol Department of Applied Science University of California,
Direct-Drive Cryogenic Target Implosion Performance on OMEGA
Direct-Drive Cryogenic Target Implosion Performance on OMEGA Introduction Direct-drive, cryogenic inertial confinement fusion (ICF) capsule implosion experiments under investigation using the 3-kJ OMEGA
Dynamo on the OMEGA laser and kinetic problems of proton radiography
Dynamo on the OMEGA laser and kinetic problems of proton radiography Archie Bott, Alex Rigby, Tom White, Petros Tzeferacos, Don Lamb, Gianluca Gregori, Alex Schekochihin (and many others ) 2 th August
The National Direct-Drive Program
The National Direct-Drive Program Ignition hydro-equivalence on OMEGA 1.8 MJ 26 kj Verify laser plasma interaction scaling at the National Ignition Facility T. C. Sangster University of Rochester Laboratory
Controlling Laser Beam Speckle with Optimized Illumination of Zooming Phase Plates. Adeeb Sheikh
Controlling Laser Beam Speckle with Optimized Illumination of Zooming Phase Plates Adeeb Sheikh Advisor: Dr. Reuben Epstein Laboratory for Laser Energetics, University of Rochester Rochester, New York
Areal-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
Integrated 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
Multibeam Laser Plasma Interactions in Inertial Confinement Fusion
Multibeam Laser Plasma Interactions in Inertial Confinement Fusion Polar drive X-ray drive 1 n e /n c n e /n c 1 mm.25. n e /n c 3.5 mm J. F. Myatt University of Rochester Laboratory for Laser Energetics
Modeling Laser-Plasma Interactions in MagLIF Experiment on NIF
Modeling Laser-Plasma Interactions in MagLIF Experiment on NIF Anomalous Absorption Meeting 5 May 2016 D. J. Strozzi, R. L. Berger, A. B. Sefkow, S. H. Langer, T. Chapman, B. Pollock, C. Goyon, J. Moody
Direct-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,
STUDIES OF INTERACTION OF PARTIALLY COHERENT LASER RADIATION WITH PLASMA
1 STUDIES OF INTERACTION OF PARTIALLY COHERENT LASER RADIATION WITH PLASMA Starodub A.N, Fedotov S.I., Fronya A.A., Kruglov B.V., Mal kova S.V., Osipov M.V., Puzyrev V.N., Sahakyan A.T., Vasin B.L., Yakushev
Temporal modulation instabilities of counterpropagating waves in a finite dispersive Kerr medium. II. Application to Fabry Perot cavities
Yu et al. Vol. 15, No. 2/February 1998/J. Opt. Soc. Am. B 617 Temporal modulation instabilities of counterpropagating waves in a finite dispersive Kerr medium. II. Application to Fabry Perot cavities M.