UNR activities in FSC Y. Sentoku and T. E. Cowan $40K from FSC to support a graduate student, Brian Chrisman, “Numerical modeling of fast ignition physics”.

Slides:

Advertisements

Similar presentations

Imperial College, London

Advertisements

The scaling of LWFA in the ultra-relativistic blowout regime: Generation of Gev to TeV monoenergetic electron beams W.Lu, M.Tzoufras, F.S.Tsung, C. Joshi,

10L Simulations Close to current Titan parameters. Here’s the big picture… electron diagnostic “target planes” every 25  m preplasma L = 5μm (3) LASER.

Electron transport in the shock ignition regime Tony Bell University of Oxford Rutherford Appleton Laboratory Acknowledgements: Guy Schurtz, Xavier Ribeyre.

MIT participation in the FSC research program* C. K. Li and R. D. Petrasso MIT Experimental: LLE’s fuel-assembly experiments Development of advanced diagnostics.

Ultrafast laser-driven electric field propagation on metallic surfaces Laser-driven proton beams When an intense short-pulse laser is focused down onto.

0 Relativistic induced transparency and laser propagation in an overdense plasma Su-Ming Weng Theoretical Quantum Electronics (TQE), Technische Universität.

Contour plots of electron density 2D PIC in units of  [n |e|] cr wake wave breaking accelerating field laser pulse Blue:electron density green: laser.

Modeling laser-plasma interaction with the direct implicit PIC method 7 th Direct Drive and Fast Ignition Workshop, Prague, 3-6 May 2009 M. Drouin a, L.

SENIGALLIA-COULOMB09 1 Protons Acceleration with Laser: influence of pulse duration M. Carrié and E. Lefebvre CEA, DAM, DIF, Arpajon, France A. Flacco.

Lawrence Livermore National Laboratory Pravesh Patel 10th Intl. Workshop on Fast Ignition of Fusion Targets June 9-13, 2008, Hersonissos, Crete Experimental.

西湖国际聚变理论与模拟研讨会西湖国际聚变理论与模拟研讨会 M. Y. Yu 郁明阳 Institute for Fusion Theory and Simulation Zhejiang University Hangzhou

Charged-particle acceleration in PW laser-plasma interaction

P (TW) t (ns) ICF Context Inertial Confinement Fusion Classical schemes Direct-Drive Fusion Indirect-Drive Fusion Central hot spot ignition Alternative.

Physics of fusion power Lecture 11: Diagnostics / heating.

This work was performed under the auspices of the U.S. Department of Energy by the University of California Lawrence Livermore National Laboratory under.

Laser Magnetized Plasma Interactions for the Creation of Solid Density Warm (~200 eV) Matter M.S. R. Presura, Y. Sentoku, A. Kemp, C. Plechaty,

FSC 1 Benchmark Modeling of Electron Beam Transport in Nail and Wire Experiments Using Three Independent PIC Codes Mingsheng Wei Annual Fusion Science.

FSC High Intensity Laser and Energetic Particle – Matter Interactions Chuang Ren University of Rochester Workshop on Scientific Opportunities in HEDLP.

Collisional ionization in the beam body  Just behind the front, by continuity  →0 and the three body recombination  (T e,E) is negligible.

Modeling the benchmark experiments Mingsheng Wei, Fei He, John Pasley, Farhat Beg,… University of California, San Diego Richard Stephens General Atomics.

Short pulse modelling in PPD N. J. Sircombe, M. G. Ramsay, D. A. Chapman, S. J. Hughes, D. J. Swatton.

Update on LLNL FI activities on the Titan Laser A.J.Mackinnon Feb 28, 2007 Fusion Science Center Meeting Chicago.

Acceleration of a mass limited target by ultra-high intensity laser pulse A.A.Andreev 1, J.Limpouch 2, K.Yu.Platonov 1 J.Psikal 2, Yu.Stolyarov 1 1. ILPh.

FSC Channeling in the Corona of Fast Ignition Targets G. Li, R. Yan, and C. Ren, UR/LLE T. Wang, J. Tonge, and W. B. Mori, UCLA.

1 UCLA Plans Warren B. Mori John Tonge Michail Tzoufras University of California at Los Angeles Chuang Ren University of Rochester.

Collisional Model in LSP. Simulation of Collisional Slowing Down of Relativistic Electrons in Plasma. A. Solodov, J. Myatt University of Rochester Laboratory.

Hot Electron Behaviors Relevant to Fast Ignition K. A. Tanaka 1,2, H. Habara 1,2, R. Kodama 1,2, K. Kondo 1,2, G.R. Kumar 1,2,3, A.L. Lei 1,2, K. Mima.

Laser plasma researches in Hungary related to the physics of fast ignitors István B Földes, Ervin Rácz KFKI-Research Institute for Particle and Nuclear.

Assembly of Targets for RPA by Compression Waves A.P.L.Robinson Plasma Physics Group, Central Laser Facility, STFC Rutherford-Appleton Lab.

Measurement of Magnetic field in intense laser-matter interaction via Relativistic electron deflectometry Osaka University *N. Nakanii, H. Habara, K. A.

Radiation from Poynting Jets and Collisionless Shocks Edison Liang, Koichi Noguchi Shinya Sugiyama, Rice University Acknowledgements: Scott Wilks, Bruce.

ENHANCED LASER-DRIVEN PROTON ACCELERATION IN MASS-LIMITED TARGETS

COST Meeting Krakow May 2010 Temperature and K  -Yield radial distributions of laser-produced solid-density plasmas Ulf Zastrau X-ray Optics Group - IOQ.

Highlights of talk : 1.e+e- pair laser production 1.Collisionless shocks 1.Colliding laser pulses accelerator.

Particle acceleration by circularly polarized lasers W-M Wang 1,2, Z-M Sheng 1,3, S Kawata 2, Y-T Li 1, L-M Chen 1, J Zhang 1,3 1 Institute of Physics,

1 Physics of GRB Prompt emission Asaf Pe’er University of Amsterdam September 2005.

Russian Research Center” Kurchatov Institute” Theoretical Modeling of Track Formation in Materials under Heavy Ion Irradiation Alexander Ryazanov “Basic.

Neutrinos and Supernovae Bob Bingham STFC – Centre for Fundamental Physics (CfFP) Rutherford Appleton Laboratory. SUPA– University of Strathclyde.

Nonlinear Optics in Plasmas. What is relativistic self-guiding? Ponderomotive self-channeling resulting from expulsion of electrons on axis Relativistic.

VARIOUS MECHANISMS OF ELECTRON HEATING AT THE IRRADIATION OF DENSE TARGETS BY A SUPER-INTENSE FEMTOSECOND LASER PULSE Krainov V.P. Moscow Institute of.

LSP modeling of the electron beam propagation in the nail/wire targets Mingsheng Wei, Andrey Solodov, John Pasley, Farhat Beg and Richard Stephens Center.

SIMULATIONS FOR THE ELUCIDATION OF ELECTRON BEAM PROPERTIES IN LASER-WAKEFIELD ACCELERATION EXPERIMENTS VIA BETATRON AND SYNCHROTRON-LIKE RADIATION P.

Impedance Matching – can it tell us anything about fast electron transport? (or Why undergrads need to learn electronics!) Roger Evans Imperial College.

FSC 1 A Global Simulation for Laser Driven MeV Electrons in Fast Ignition Chuang Ren University of Rochester in collaboration with M. Tzoufras, J. Tonge,

1. Fast ignition by hydrodynamic flow

Particle Acceleration by Relativistic Collisionless Shocks in Electron-Positron Plasmas Graduate school of science, Osaka University Kentaro Nagata.

GWENAEL FUBIANI L’OASIS GROUP, LBNL 6D Space charge estimates for dense electron bunches in vacuum W.P. LEEMANS, E. ESAREY, B.A. SHADWICK, J. QIANG, G.

Target threat spectra Gregory Moses and John Santarius Fusion Technology Institute University of Wisconsin-Madison HAPL Review Meeting March 3-4, 2005.

FSC Laser Channeling and Hole-Boring for Fast Ignition C. Ren, G. Li, and R. Yan University of Rochester J. Tonge, and W. B. Mori UCLA FSC Meeting August.

Introduction to Plasma Physics and Plasma-based Acceleration

Trident Laser Facility

Study of transient fields with Proton Imaging Toma Toncian Bad Breisig October 2008 GRK1203 TexPoint fonts used in EMF. Read the TexPoint manual before.

Munib Amin Institute for Laser and Plasma Physics Heinrich Heine University Düsseldorf Laser ion acceleration and applications A bouquet of flowers.

1 1 Office of Science Strong Field Electrodynamics of Thin Foils S. S. Bulanov Lawrence Berkeley National Laboratory, Berkeley, CA We acknowledge support.

Physical Mechanism of the Transverse Instability in the Radiation Pressure Ion Acceleration Process Yang Wan Department of Engineering Physics, Tsinghua.

23. September 2016 | TU Darmstadt | Fachbereich 18 | Institut Theorie Elektromagnetischer Felder | Prof. Dr.-Ing. Thomas Weiland | 1 Laser acceleration.

Tomoyuki Johzaki*, *Hiroshima University Energy density (Bx2+By2)1/2

An overview of turbulent transport in tokamaks

New concept of light ion acceleration from low-density target

Studies of the energy transfer

ENERGY LOADING AND DECAY OF N2 VIBRATION

Wakefield Accelerator

Shock Fast-Ignition of Thermonuclear Fuel with High Areal Density

Gamma-ray bursts from magnetized collisionally heated jets

Edison Liang, Koichi Noguchi Orestes Hastings, Rice University

LSP Modeling of Ultra-Intense Lasers on Cone-Coupled Wire Targets:

Heating in short-pulse laser-driven cone- and nail-capped wire targets

FilamenTATION INSTABILITIES IN RELATIVISTIC PLASMA

Presentation transcript:

UNR activities in FSC Y. Sentoku and T. E. Cowan $40K from FSC to support a graduate student, Brian Chrisman, “Numerical modeling of fast ignition physics”.

List of activities Modeling of cone-guiding fast ignition by PICLS. Hot electron temperature scaling by changing the cone target density. (B. Chrisman) Modeling of nail target experiment. (Collaboration with UCSD) Perfect energy conservation scheme of relativistic collision between weighted particles. (previous model conserves energy and momentum statistically.)

Summary of Cone-Guiding Fast Ignition Simulation Cone-Guiding Fast ignition simulation Electron energy density evolution The Weibel instability occurs below and around 100n c density. No magnetic filament appears around the core. The dominant core heating mechanism is identified as drag heating between hot and bulk electrons and consequent energy cascading from the bulk electrons to the core ions. Hot electron temperature is inversely proportional to the square root of the cone target density, T h [MeV] ~ (I/10 19 W/cm 2  m 2 )(  n t /n c ) 1/2, n t : target density, after preplasma is blown off by the laser pressure. Hot electron temperature is tunable by changing the cone target density. Laser intensity: W/cm 2

The Weibel instability occurs below and around 100n c density. No magnetic filament appears around the core. Kinetic instabilities are collisionally dumped in high density region > 100n c. Laser intensity: W/cm 2

1/2 plasma skin length at cut-off: λ s0 [MeV] plasma skin length of solid density: λ s Electron acceleration distance shrinks after pre-plasma blown off by super intense laser irradiation Interaction (acceleration) length L=λ s0 =c/ω 0 (a) Preplasma (L>λ s0 ) (b) After preplasma blown off (L<λ s0 ) Interaction (acceleration) length L=λ s =γ 1/2 c/ω ps Acceleration distance will be (γn c /n s ) 1/2 shorter in the steep case, then Ponderomotive scaling Steepened by photon pressure Modified Ponderomotive scaling

Demonstration of Modified T h scaling by PIC - T h ∝ 1/sqrt(n) - After the pre-plasma has been blown away, the hot electron temperature drops, though energy coupling from the laser to hot e- stays almost constant. 2D results by changing cone target density Energy coupling is calculated in 2.5  m spot along the laser- axis behind the cone target. Laser intensity: W/cm 2

Quasi-half spherical expansion from tip time Propagation of fast electrons along ~c time Comparison cone/cone+wire - radiography LULI-100 TW (July 2006): J. Fuchs, M. Borghesi, O. Willi, R. Kodama, et al. (+UNR students)

time LULI-100 TW (July 2006): J. Fuchs, M. Borghesi, O. Willi, R. Kodama, et al. (+UNR students)