Where are we with laser fusion?
|
|
- Wilfred Clark
- 6 years ago
- Views:
Transcription
1 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 16-1, 015 San Diego, CA
2 Alpha particle heating is the mechanism leading to thermonuclear ignition of Deuterium-Tritium fuel The -particles release their energy in the plasma thus causing self-heating (or alpha heating). Deuterium + Tritium Ignition condition alpha-power> power-losses χ= alpha-power/power-losses>1 n Neutrons (14 MeV) leave without depositing its energy Alpha particles (3.5MeV) slow down in the plasma through collisions with the electrons The plasma gets hotter and produces more fusion reactions leading to a thermal runaway Thermonuclear instability Ignition
3 FSC Driving ICF targets is a very inefficient process Expanding ablated (blow-off) plasma (CH) Examples: V i Ablator NIF Indirect Drive Laser energy = 1.8MJ Shell final kinetic energy = 10-14kJ Total efficiency = % DT vapor DT ice Useful kinetic energy = 1 shell M unablated Vi V i = implosion velocity Only a small fraction of the driver energy is converted into useful kinetic energy of the implosion
4 1 The imploding shell has two functions: (a) heating of the central low-density plasma (hot spot) to ignition temperatures, (b) providing the inertial confinement FSC Useful kinetic energy shell M unablated Vi ~50% ~50% Compression and heating of the central hot spot Compression of the dense shell to provide the inertial confinement COMPRESSED CORE AT STAGNATION Dense shell Ignition takes place ~ g/cc in the hot spot Hot spot 5-10 KeV Dense shell Provides the confinement of the hot spot (and more)
5 Up to the onset of ignition, burning plasmas are confined within the hot spot FSC Hot spot ~5kJ Dense Shell ~5kJ
6 FSC The energy balance determines the time evolution of the plasma pressure Fusion Plasma (HOT SPOT) P no The DT plasma is brought to a pressure P no using only a spherical piston (the imploding shell) The alpha particles deposit their energy in the plasma while the plasma looses energy on a time scale τ Plasma volume Fusion reactivity d 3 n 3 PV dt ENERGY BALANCE PV = σv ε V 4 P nt 3.5 MeV τ Confinement time P(0) = no P
7 FSC The dimensionless form of the energy balance only depends on the no-alpha Lawson 1 parameter dp P Pτ = 1 dt τ S ( T ) S ( T) ε 4T σv Dimensionless variables and assume σ v ~ T ( ) S T = S = const dpˆ = P ˆ χ ˆ no P 1 dtˆ χ no Lawson, Proc. Phys. Soc. London (1957) P no S Pˆ τ P P no ˆ t t P ˆ(0) 1 τ No-alpha Lawson parameter Note: S has the dimensions of Pτ
8 FSC Pˆ The explosive solution defines the ignition condition determined by the no-alpha Lawson parameter = 5 χ no 1 no ˆ ( χ 1) e t IGNITION CONDITION χ no 1 P τ = S P [ τ] min no no ign Pt ˆ() ˆ 4 3 χ = 1.5 χ no = 1 1 χ no = no ˆt ignition χ no S P no [ P τ ] min no τ ign
9 FSC A neutron yield with alphas and a yield without alphas are defined Neutron yield including alpha particle heating for subignited plasmas P ˆ ˆ Vτ P no 1 τ no = χ 0 no χno 1 χno Yield V P P dt Ln Yield is measured in the experiments Neutron yield if alpha particle heating is switched off dpˆ = P ˆ χ ˆ no P 1 Pˆ dtˆ ˆ ˆ Vτ Pno Yieldno Vτ P no P dt = 0 = exp ˆ ( t) Yield no cannot be measured in DT experiments
10 FSC Yield Yield The amplification of the yield due to alpha heating is a unique function of the no-alpha Lawson parameter 1 = Ln χ no χno 1 χno no χ no P no [ P τ ] min no τ ign Yield Yield no χ no
11 FSC How can one measure the no-alpha Lawson parameter? Start from estimating the confinement time τ M R = 4π PR sh DT Newton s law of the dense shell confining the hot spot pressure DT Dense shell R Hot spot M M sh DT DT τ R M PR sh ~ ~ DT PR τ Areal density Shell mass ~ ( ρ ) R shell V ~ R 3
12 FSC A simple formula relates the Lawson parameters with and without alphas (using previous slide) Yield ~ P τv Pτ χ = S Pτ ig [ Pτ ] min χ Yield 3 ~ sh M DT ( ρ ) Yield is measured Areal density ρ is measured Mass of shell is known χ no ~ Yield 1/3 no χ 1/3 ~ Yield χ Yield = χno Yieldn 1/3 χ can be measured
13 The amplification of the yield due to alpha heating is also a unique function of the Lawson parameter with alphas FSC Yield Yield 1 = Ln χ no χno 1 χno no χ Yield = χno Yieldn 1/3 Yield amplification Yield Yield n = F ( χ ) χ 1/3 0.4Yield 16 ~ sh g / cm M DT ( mg ) ( ρr ) /3 χ can be measured
14 FSC In the best NIF shot the fusion yield increased by more than x due to alpha heating 1D-simulations D-simulations analytic 1D-simulations D-simulations analytic Ignition Best NIF shot χ no [ Pτ ] [ Pτ ] no ign no Best High-Foot NIF shot: ρr 0.7g/cm, Yield = 10 16, M DT = 0.17mg χ 0.95
15 A significant amount of alpha particle energy (relative to the pdv work) was obtained in NIF shot N14010 FSC P T 180Gbar 5keV Energy balance input E E + 0.5E 0.5E hot spot pdv rad R hot spot 34µ m input EpdV 4kJ Ehot spot 5kJ tot 0.5E.3kJ Qhot spot = input E tot Erad E E tot fusion 5.kJ 6kJ pdv 0.65
16 In a burning plasma, the alpha heating is the dominant power input to the fusion plasma. W external Fusion plasma W Wfusion Q Q W = 5W = 5 ext ext. W Burning plasmas Q >1 Super-simple steady-state (?) model of a burning plasma with external input energy model of implosion before stagnation when input power from shell convergence (piston) to the hot spot is large.
17 Steady state plasmas: energy balance External input n 4 σ ε v V ~ C n T V ~ C p V Alpha heating Energy losses 3 p W ext + C pv= V τ Energy confinement time
18 In the presence of alpha heating, the plasma pressure depends on Q W Q W = CpV ext W ext Energy balance with alphas 3 p 3 p W + ext C pv V Wext ( 1 Q) V 0 τ = + τ = Pressure with alphas τ C p τ 0.5 p = W ext ( 1+ Q ) C 3V τ 3
19 The yield amplification due to alpha heating depends exclusively on Q W ext Energy balance and pressure without alphas = 3 p τ no no V τ no C p τ 0.5 no p no = W extcτ 3V 3 Yield amplification vs Q Y Y no p = = + p 4 ( 1 Q ) 3 no
20 Indirect drive implosions on NIF have achieved significant alpha heating (1). Access to the burning plasma regime requires doubling the neutron yield () FSC -heating model (ICF) hydro-sim (ICF) 30kJ-MJ 10kJ Steady state (for τ P -1/ ) 6kJ 50kJ Applies to current ID implosions
21 How was the alpha heating result achieved at LLNL? Hurricane et al, Nature, March 014 Parks et al, Phys. Rev. Lett. 014
22 6kJ O. Hurricane, APS DPP meeting (013)
23 The best NIF implosions used the High-Foot laser pulse that drives stronger shocks in the foot O. Hurricane, APS DPP meeting (013) High foot Low foot The high foot pulse set the imploding shell on a higher isentrope (nothing to do with alpha particles) because it launches stronger shocks in the foot of the pulse when the shell density is low Stronger picket Drop this precompession
24 High-foot growth-factor calculations and simulations are consistent with the expectation of less instability O. Hurricane, APS DPP meeting (013)
25 The current path to indirect drive ignition includes: increasing the velocity, looking for ways to reduce the Rayleigh-Taylor instability, trying new ablators and new hohlraums FSC Near Vacuum Hohlraums have the potential of eliminating the Laser-Plasma- Instabilities problem leading to better control of the implosion symmetry and greater x-ray energy HDC (diamond) Ablator has higher density and requires shorter laser pulses allowing the use of vacuum hohlraums (with less energy losses due to laser-plasma instabilities) Beryllium Ablator has greater hydrodynamic efficiency allowing a more massive (and more stable) shell to be imploded
26 Direct-Drive Laser Fusion
27 Hydrodynamic equivalence provides a tool to scale the performance of OMEGA implosions to NIF energies FSC Hydro-equivalent scaled-down experiments are carried out on OMEGA
28 FSC OMEGA implosions continue to improve towards the goal of demonstrating hydro-equivalent ignition at 1.8MJ of laser energy Ignition on NIF likely no OMEGA OMEGA (015) Ignition on NIF possible but unlikely Threshold depends on the level of nonuniformities OMEGA R. Nora et al, Phys. Plasmas (014)
29 The performance of direct drive capsules is currently degraded by Cross-Beam-Energy-Transfer FSC
30 Techniques to mitigate Cross-Beam Energy Transfer include zooming phase plates and two-color split FSC Zooming Phase Plates 1 Picket are NOT zoomed Main pulse is zoomed 1 D. Froula et al, submitted to Phys. Plasmas (013) I. Igumenshchev et al, Phys. Plasmas 19, (01)
31 FSC Shock ignition is an alterative ignition scheme to achieve higher pressures than conventional ignition R. Betti et al, Phys. Rev. Lett., 98, (007) D. Batani et al, Review, Nuclear Fusion (014) S. Atzeni et al, Review, Nuclear Fusion (014)
32 FSC Experimentally inferred ablation pressures above 300Mbar exceed the requirements for shock ignition R. Nora et al, Phys. Rev. Lett. 114, (015) Planar experiments achieved 35-70Mbar S. Baton et al, Phys. Rev. Lett. (01) M. Hohemberger et al, Phys. Plasmas (014)
33 conclusions The recent results from the NIF are exciting and give hope of achieving burning plasma conditions FSC Significant alpha heating of a DT plasma has been demonstrated at NIF. Estimates indicate that heating from the alphas has more than double the number of fusion reactions This is only fusion physics and reaching any conclusion about fusion energy is premature The possibility of producing a burning plasma is real and the indirect drive approach seems to be on the right path The path to ignition and gain is still uncertain Direct-drive offers a promising alternative path to ignition and initial experiments on NIF are under way
34 FSC Despite the exciting results, the path to ignition is uncertain with current indirect-drive targets imp no kin 3/5 F χ ~E YOC Best shot to date E kin = kinetic energy YOC is V χ no 0.65 YOC = Yield-Over-Clean = Yield(3D)/Yield(1D) 50% in NIF High Foot V imp = Implosion Velocity F = Adiabat (entropy) no- ignition parameter in terms of in-flight properties Needed for ignition χno 1 Direct-drive High Velocity (40km/s) Easiest options to approach ignition: Increase V imp and/or reduce the Adiabat (this is the current path of the HF campaign) but stability may eventually become an issue again (YOC drops)
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
More informationInertial Confinement Fusion DR KATE LANCASTER YORK PLASMA INSTITUTE
Inertial Confinement Fusion DR KATE LANCASTER YORK PLASMA INSTITUTE In the beginning In the late fifties, alternative applications of nuclear explosions were being considered the number one suggestion
More informationThe Ignition Physics Campaign on NIF: Status and Progress
Journal of Physics: Conference Series PAPER OPEN ACCESS The Ignition Physics Campaign on NIF: Status and Progress To cite this article: M. J. Edwards and Ignition Team 216 J. Phys.: Conf. Ser. 688 1217
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 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 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 informationHiPER target studies on shock ignition: design principles, modelling, scaling, risk reduction options
HiPER target studies on shock ignition: design principles, modelling, scaling, risk reduction options S. Atzeni, A. Marocchino, A. Schiavi, Dip. SBAI, Università di Roma La Sapienza and CNISM, Italy X.
More informationThe Pursuit of Indirect Drive Ignition at the National Ignition Facility
The Pursuit of Indirect Drive Ignition at the National Ignition Facility Workshop on Plasma Astrophysics: From the Laboratory to the Non-Thermal Universe Oxford, England July 3-5, 2017 Richard Town Deputy
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 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 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 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 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 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 informationHydrodynamic instability measurements in DTlayered ICF capsules using the layered-hgr platform
Journal of Physics: Conference Series PAPER OPEN ACCESS Hydrodynamic instability measurements in DTlayered ICF capsules using the layered-hgr platform Related content - Mix and hydrodynamic instabilities
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 informationTheory 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
More informationPhysics 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
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 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 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 informationWhat is. Inertial Confinement Fusion?
What is Inertial Confinement Fusion? Inertial Confinement Fusion: dense & short-lived plasma Fusing D and T requires temperature to overcome Coulomb repulsion density & confinement time to maximize number
More informationA Multi-Dimensional View of the US Inertial Confinement Fusion Program
Photos placed in horizontal position with even amount of white space between photos and header To replace these boxes with images open the slide master A Multi-Dimensional View of the US Inertial Confinement
More informationHigh 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
More informationMIT Research using High-Energy Density Plasmas at OMEGA and the NIF
MIT Research using High-Energy Density Plasmas at OMEGA and the NIF 860 μm 2.3 μm SiO 2 D 3 He gas 1 10 11 D-D 3 He D-D T Yield D-D p D- 3 He 0 0 5 10 15 Energy (MeV) D- 3 He p Hans Rinderknecht Wednesday,
More informationImproving hot-spot pressure for ignition in high-adiabat inertial confinement fusion implosion
Improving hot-spot preure for ignition in high-adiabat inertial confinement fusion implosion Dongguo Kang( 康洞国 ),* Shaoping Zhu( 朱少平 ), Wenbing Pei( 裴文兵 ), Shiyang Zou( 邹士阳 ), Wudi Zheng( 郑无敌 ), Jianfa
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 informationLaser Inertial Confinement Fusion Advanced Ignition Techniques
Laser Inertial Confinement Fusion Advanced Ignition Techniques R. Fedosejevs Department of Electrical and Computer Engineering University of Alberta Presented at the Canadian Workshop on Fusion Energy
More informationShock ignition. John Pasley. University of York / CLF
Shock ignition John Pasley University of York / CLF Lecture structure Reading list Primer on shock waves Shock waves in conventional ICF Why shock ignition? Methodology Advantages of shock ignition Outlook
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 informationProgress 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.
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 informationIgnition Regime and Burn Dynamics of D T-Seeded D 3 He Fuel for Fast Ignition Inertial Confinement Fusion
Ignition Regime and Burn Dynamics of D T-Seeded D 3 He Fuel for Fast Ignition Inertial Confinement Fusion Y. Nakao, K. Tsukida, K. Shinkoda, Y. Saito Department of Applied Quantum Physics and Nuclear Engineering,
More informationNotes on fusion reactions and power balance of a thermonuclear plasma!
SA, 3/2017 Chapter 5 Notes on fusion reactions and power balance of a thermonuclear plasma! Stefano Atzeni See S. Atzeni and J. Meyer-ter-Vehn, The Physics of Inertial Fusion, Oxford University Press (2004,
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 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 informationINVESTIGATION OF THE DEGENERACY EFFECT IN FAST IGNITION FOR HETEROGENEOUS FUEL
INVESTIGATION OF THE DEGENERACY EFFECT IN FAST IGNITION FOR HETEROGENEOUS FUEL M. MAHDAVI 1, B. KALEJI 1 Sciences Faculty, Department of Physics, University of Mazandaran P. O. Box 47415-416, Babolsar,
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 informationD- 3 He Protons as a Diagnostic for Target ρr
D- 3 He Protons as a Diagnostic for Target ρr Areal density (ρr) is an important parameter for measuring compression in ICF experiments. Several diagnostics employing nuclear particles have been considered
More informationNew developments in the theory of ICF targets, and fast ignition with heavy ions
INSTITUTE OF PHYSICS PUBLISHING Plasma Phys. Control. Fusion 45 (2003) A125 A132 PLASMA PHYSICS AND CONTROLLED FUSION PII: S0741-3335(03)68658-6 New developments in the theory of ICF targets, and fast
More informationInertial confinement fusion (ICF) with high magnetic fields
Inertial confinement fusion (ICF) with high magnetic fields B. Grant Logan BGLogan Scientific, Inc., Danville, CA, USA Visiting scientist at U.Orsay-Paris-Sud, CEA-DIF, Ecole Polytechnique Consultant for
More informationPolar 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
More informationNon-cryogenic ICF-target
Non-cryogenic ICF-target 1, V.E. Sherman, 3 N.V. Zmitrenko 1 P.N.Lebedev Physical Institute of Russian Academy of Sciences, Moscow, RF St.-Petersburg Polytechnic State Iniversity, RF M.V. Keldish Instititute
More informationJournal of Physics: Conference Series PAPER OPEN ACCESS. To cite this article: T J Murphy et al 2016 J. Phys.: Conf. Ser.
Journal of Physics: Conference Series PAPER OPEN ACCESS Progress in the development of the MARBLE platform for studying thermonuclear burn in the presence of heterogeneous mix on OMEGA and the National
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 informationEffects of alpha stopping power modelling on the ignition threshold in a directly-driven Inertial Confinement Fusion capsule
Effects of alpha stopping power modelling on the ignition threshold in a directly-driven Inertial Confinement Fusion capsule M. Temporal 1, a, B. Canaud 2, W. Cayzac 2, R. Ramis 3, and R.L. Singleton Jr
More informationProgress in detailed modelling of low foot and high foot implosion experiments on the National Ignition Facility
Journal of Physics: Conference Series PAPER OPEN ACCESS Progress in detailed modelling of low foot and high foot implosion experiments on the National Ignition Facility Related content - Capsule modeling
More informationFPEOS: A First-Principles Equation of State Table of Deuterium for Inertial Confinement Fusion Applications
FPEOS: A First-Principles Equation of State Table of Deuterium for Inertial Confinement Fusion Applications S. X. Hu 1,, B. Militzer 2, V. N. Goncharov 1, S. Skupsky 1 1. Laboratory for Laser Energetics,
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 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 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 informationPhysics of Fast Ignition
(some aspects of the) Physics of Fast Ignition and target studies for the HiPER project Stefano Atzeni Dipartimento di Energetica, Università di Roma La Sapienza and CNISM,Italy IOP Plasma Physics Group
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 informationThe National Ignition Facility: Transition to a User Facility
Journal of Physics: Conference Series PAPER OPEN ACCESS The National Ignition Facility: Transition to a User Facility To cite this article: E. I. Moses et al 2016 J. Phys.: Conf. Ser. 688 012073 View the
More informationBEAM PROPAGATION FOR THE LASER INERTIAL CONFINEMENT FUSION-FISSION ENERGY ENGINE. S. C. Wilks, B. I. Cohen, J. F. Latkowski, and E. A.
BEAM PROPAGATION FOR THE LASER INERTIAL CONFINEMENT FUSION-FISSION ENERGY ENGINE S. C. Wilks, B. I. Cohen, J. F. Latkowski, and E. A. Williams Lawrence Livermore National Laboratory L-211, Livermore, CA,
More informationThe Magnetic Recoil Spectrometer (MRSt) for time-resolved measurements of the neutron spectrum at the National Ignition Facility (NIF)
PSFC/JA-16-32 The Magnetic Recoil Spectrometer (MRSt) for time-resolved measurements of the neutron spectrum at the National Ignition Facility (NIF) J.A. Frenje 1 T.J. Hilsabeck 2, C. Wink1, P. Bell 3,
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 informationD-D FUSION NEUTRONS FROM A STRONG SPHERICAL SHOCK WAVE FOCUSED ON A DEUTERIUM BUBBLE IN WATER. Dr. Michel Laberge General Fusion Inc.
D-D FUSION NEUTRONS FROM A STRONG SPHERICAL SHOCK WAVE FOCUSED ON A DEUTERIUM BUBBLE IN WATER Dr. Michel Laberge General Fusion Inc. SONOFUSION Sonofusion is making some noise A bit short in energy, ~mj
More informationCluster Induced Ignition - A New Approach to Inertial Fusion Energy
Cluster Induced Ignition - A New Approach to Inertial Fusion Energy Tara Desai 1 *, J.T. Mendonca 2, Dimitri Batani 1 and Andrea Bernardinello 1 1 Dipartimento di Fisica Ò G.Occhialini Ó and INFM, Universitˆ
More informationICStatus and progress of the National Ignition Facility as ICF and HED user facility
Journal of Physics: Conference Series PAPER OPEN ACCESS ICStatus and progress of the National Ignition Facility as ICF and HED user facility To cite this article: B M Van Wonterghem et al 2016 J. Phys.:
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 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 informationChapter 11. Introduction to (Laser-Driven) Inertial Confinement Fusion
Chapter 11 Introduction to (Laser-Driven) Inertial Confinement Fusion Stefano Atzeni Dipartimento di Scienze di Base e Applicate per l Ingegneria (SBAI) Università di Roma La Sapienza May 17, 2017 stefano.atzeni@uniroma1.it
More informationDownloaded 11 Oct 2012 to Redistribution subject to AIP license or copyright; see
PHYSICS OF PLASMAS VOLUME 11, NUMBER 2 FEBRUARY 2004 REVIEW ARTICLE The physics basis for ignition using indirect-drive targets on the National Ignition Facility John D. Lindl, Peter Amendt, Richard L.
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 informationHydrodynamic 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.
More informationAnalysis of Experimental Asymmetries using Uncertainty Quantification: Inertial Confinement Fusion (ICF) & its Applications
Analysis of Experimental Asymmetries using Uncertainty Quantification: Inertial Confinement Fusion (ICF) & its Applications Joshua Levin January 9, 2009 (Edited: June 15, 2009) 1 Contents 1. Uncertainty
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 informationRayleigh-Taylor Growth Rates for Arbitrary Density Profiles Calculated with a Variational Method. Jue Liao
Rayleigh-Taylor Growth Rates for Arbitrary Density Profiles Calculated with a Variational Method Jue Liao Rayleigh-Taylor growth rates for arbitrary density profiles calculated with a variational method
More informationInertial Confinement Fusion Experiments & Modeling
Inertial Confinement Fusion Experiments & Modeling Using X-ray Absorption Spectroscopy of Thin Tracer Layers to Diagnose the Time-Dependent Properties of ICF Ablator Materials David Cohen (Swarthmore College,
More informationEffectiveness and Hydrodynamic Stability of Low-Entropy Laser-Driven Acceleration of Thin Foil.
Effectiveness and Hydrodynamic Stability of Low-Entropy Laser-Driven Acceleration of Thin Foil. Sergey Gus kov and Masakatsu Murakami INTRODUCTION The importance to understand of effectiveness limits of
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 informationCreating, Diagnosing, and Controlling High Energy Density Matter with the National Ignition Facility
Creating, Diagnosing, and Controlling High Energy Density Matter with the National Ignition Facility University of Michigan November 29, 2017 Mark C Herrmann National Ignition Facility Director Thanks
More informationLaser in Fusion. Department of Electronics of TEI of Crete. Dr Petridis Kostantinos Lecturer Optoelectronics, Laser and Plasma Technologies Group
Laser in Fusion Department of Electronics of TEI of Crete Dr Petridis Kostantinos Lecturer Optoelectronics, Laser and Plasma Technologies Group Nuclear Fusion Since we have tried any energy source in our
More informationReview of Heavy-Ion Inertial Fusion Physics
Review of Heavy-Ion Inertial Fusion Physics S. Kawata 1, 2, *, T. Karino 1, and A. I. Ogoyski 3 1 Graduate School of Engineering, Utsunomiya University, Yohtoh 7-1-2, Utsunomiya 321-8585, Japan 2 CORE
More informationCharles Cerjan. Nuclear Data Needs and Capabilities for Applications. Lawrence Berkeley National Laboratory. May 28, 2015
Charles Cerjan Nuclear Data Needs and Capabilities for Applications Lawrence Berkeley National Laboratory May 28, 2015 LLNL-PRES-670924 This work was performed under the auspices of the U.S. Department
More informationIntegrated simulations of fast ignition of inertial fusion targets
Integrated simulations of fast ignition of inertial fusion targets Javier Honrubia School of Aerospace Engineering Technical University of Madrid, Spain 11 th RES Users Meeting, Santiago de Compostela,
More informationDesign of Magnetized, Room-Temperature Capsule Implosions for NIF
Design of Magnetized, Room-Temperature Capsule Implosions for NIF 48 th Anomalous Absorption Conference Bar Harbor, Maine 11 July 2018 D. J. Strozzi, J. D. Moody, J. M. Koning, J. D. Salmonson, W. A. Farmer,
More informationUsing multiple secondary fusion products to evaluate fuel ρr, electron temperature, and mix in deuterium-filled implosions at the NIF
Using multiple secondary fusion products to evaluate fuel ρr, electron temperature, and mix in deuterium-filled implosions at the NIF H. G. Rinderknecht, M. J. Rosenberg, A. B. Zylstra, B. Lahmann, F.
More informationCritical Path to Impact Fast Ignition Suppression of the Rayleigh-Taylor Instability
Critical Path to Impact Fast Ignition Suppression of the Rayleigh-Taylor Instability H. Azechi Vice Director Institute of Laser Engineering, Osaka University Jpn-US WS on HIF and HEDP September 28, 2005
More informationDiagnosing 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,
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 informationUnpressurized steam reactor. Controlled Fission Reactors. The Moderator. Global energy production 2000
From last time Fission of heavy elements produces energy Only works with 235 U, 239 Pu Fission initiated by neutron absorption. Fission products are two lighter nuclei, plus individual neutrons. These
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 informationHigh Convergence, Indirect Drive Inertial Confinement Fusion Experiments at Nova
UCRL-JC-119536 PREPRNT High Convergence, ndirect Drive nertial Confinement Fusion Experiments at Nova R. A. Lerche, M. D. Cable, S. P. Hatchett, J. A. Carid, J. D. Kilkenny, H. N. Kornblum, S. M. Lane,
More informationEfficient Energy Conversion of the 14MeV Neutrons in DT Inertial Confinement Fusion. By F. Winterberg University of Nevada, Reno
Efficient Energy Conversion of the 14MeV Neutrons in DT Inertial Confinement Fusion By F. Winterberg University of Nevada, Reno Abstract In DT fusion 80% of the energy released goes into 14MeV neutrons,
More informationTarget Design Activities for Inertial Fusion Energy at Lawrence Livermore National Laboratory 1. Introduction
Target Design Activities for Inertial Fusion Energy at Lawrence Livermore National Laboratory MAX TABAK, DEBRA CALLAHAN-MILLER,MARK HERRMANN,STEPHEN HATCHETT,JOHN D. LINDL, L.JOHN PERKINS, Lawrence Livermore
More informationOutline! The principles of (laser-driven) inertial confinement fusion. Acknowledgments! Literature!
The principles of (laser-driven) inertial confinement fusion Stefano Atzeni Dipartimento di Scienze di Base e Applicate per l Ingegneria (SBAI) Università di Roma La Sapienza and CNISM, Italy Three lectures
More informationPROGRESS TOWARD IGNITION AND BURN PROPAGATION IN INERTIAL CONFINEMENT FUSION
PROGRESS TOWARD IGNITION AND BURN PROPAGATION IN INERTIAL CONFINEMENT FUSION To achieve efficient inertial confinement fusion one must produce a small hot spot within the imploding target from which thermonuclear
More informationHigh Energy Density Plasmas & Fluids at LANL
LA-UR-16-28942 High Energy Density Plasmas & Fluids at LANL David D. Meyerhofer Physics Division Leader November 30, 2016 Operated by Los Alamos National Security, LLC for the U.S. Department of Energy's
More informationLaser Inertial Fusion Energy
Laser Inertial Fusion Energy presentation before the HEDLP committee at the WORKSHOP ON SCIENTIFIC OPPORTUNITIES IN HIGH ENERGY DENSITY PLASMA PHYSICS 25 August 2006 Washington DC presented by A. J. Schmitt,
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 Twinkle in Mother Earth s Eye: Promising fusion power. What if you could have a miniature star powering your house, your computer, and your car?
The Twinkle in Mother Earth s Eye: Promising fusion power What if you could have a miniature star powering your house, your computer, and your car? How cool would that be! Stars produce a lot of energy,
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 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 informationA new era in HED plasma physics, in directed energy and in the broader field of high energy density physics is beckoning
An Overview of DOE Research in the Science of Non-Defense High Energy Density Plasmas Y. C. Francis Thio, Program Manager, HEDP Office of Fusion Energy Sciences (OFES), DOE francis.thio@science.doe.gov
More informationFast Ignition Impact Fusion with DT methane
Fast Ignition Impact Fusion with DT methane Y. A. Lei, J. Liu, Z. X. Wang, C. Chen State Key Laboratory of Nuclear Physics and Technology, School of Physics, Beijing University, Beijing, 100871 China Impact
More informationThe effect of residual kinetic energy on apparent ion temperature in ICF implosions. T. J. Murphy
LA-UR-15-27714 The effect of residual kinetic energy on apparent ion temperature in ICF implosions T. J. Murphy National ICF Diagnostics Working Group Meeting October 6-8, 2015 Outline Basic kinetics of
More informationProgress in Vlasov-Fokker- Planck simulations of laserplasma
Progress in Vlasov-Fokker- Planck simulations of laserplasma interactions C. P. Ridgers, M. W. Sherlock, R. J. Kingham, A.Thomas, R. Evans Imperial College London Outline Part 1 simulations of long-pulse
More informationReferences and Figures from: - Basdevant, Fundamentals in Nuclear Physics
Lecture 22 Fusion Experimental Nuclear Physics PHYS 741 heeger@wisc.edu References and Figures from: - Basdevant, Fundamentals in Nuclear Physics 1 Reading for Next Week Phys. Rev. D 57, 3873-3889 (1998)
More information