Features of a point design for fast ignition

Tabak, M; Clark, D; Town, R J; Key, M H; Amendt, P; Ho, D; Meeker, D J; Shay, H D; Lasinski, B F; Kemp, A; Divol, L; Mackinnon, A J; Patel, P; Strozzi, D; Grote, D P

doi:10.1088/1742-6596/244/2/022066

Features of a point design for fast ignition

Conference · Mon Oct 26 00:00:00 EDT 2009

DOI:https://doi.org/10.1088/1742-6596/244/2/022066· OSTI ID:967744

Tabak, M; Clark, D; Town, R J; Key, M H; Amendt, P; Ho, D; Meeker, D J; Shay, H D; Lasinski, B F; Kemp, A; Divol, L; Mackinnon, A J; Patel, P; Strozzi, D; Grote, D P

Fast Ignition is an inertial fusion scheme in which fuel is first assembled and then heated to the ignition temperature with an external heating source. In this note we consider cone and shell implosions where the energy supplied by short pulse lasers is transported to the fuel by electrons. We describe possible failure modes for this scheme and how to overcome them. In particular, we describe two sources of cone tip failure, an axis jet driven from the compressed fuel mass and hard photon preheat leaking through the implosion shell, and laser prepulse that can change the position of laser absorption and the angular distribution of the emitted electrons.

Research Organization:: Lawrence Livermore National Laboratory (LLNL), Livermore, CA

Sponsoring Organization:: USDOE

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

OSTI ID:: 967744

Report Number(s):: LLNL-PROC-418768

Country of Publication:: United States

Language:: English

References (6)

Fast electron generation in cones with ultraintense laser pulses Van Woerkom, L.; Akli, K. U.; Bartal, T. Physics of Plasmas, Vol. 15, Issue 5 https://doi.org/10.1063/1.2890124	journal	May 2008
Ignition and high gain with ultrapowerful lasers Tabak, Max; Hammer, James; Glinsky, Michael E. Physics of Plasmas, Vol. 1, Issue 5, p. 1626-1634 https://doi.org/10.1063/1.870664	journal	May 1994
Inhibition of fast electron energy deposition due to preplasma filling of cone-attached targets Baton, S. D.; Koenig, M.; Fuchs, J. Physics of Plasmas, Vol. 15, Issue 4 https://doi.org/10.1063/1.2903054	journal	January 2008
Particle-in-cell simulations of short-pulse, high intensity light impinging on structured targets Lasinski, B. F.; Langdon, A. B.; Still, C. H. Physics of Plasmas, Vol. 16, Issue 1 https://doi.org/10.1063/1.3062832	journal	January 2009
Integrated simulation of the generation and transport of proton beams from laser-target interaction Welch, D. R.; Rose, D. V.; Cuneo, M. E. Physics of Plasmas, Vol. 13, Issue 6 https://doi.org/10.1063/1.2207587	journal	June 2006
A self-similar isochoric implosion for fast ignition Clark, D. S.; Tabak, M. Nuclear Fusion, Vol. 47, Issue 9 https://doi.org/10.1088/0029-5515/47/9/011	journal	August 2007

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42 ENGINEERING
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ABSORPTION
ANGULAR DISTRIBUTION
CONES
DESIGN
ELECTRONS
HEATING
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IMPLOSIONS
LASERS
PHOTONS

Features of a point design for fast ignition

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