Diagnostics Of Laser Fusion Physics Experiments

B. H. Ripin; S. E. Bodner; J. Grun; M. J. Herbst; E. A. McLean; J. M. McMahon; S. P. Obenschain; J. A. Stamper; R. R. Whitlock; F. C. Young

doi:10.1117/12.965706

9 November 1981 Diagnostics Of Laser Fusion Physics Experiments

B. H. Ripin, S. E. Bodner, J. Grun, M. J. Herbst, E. A. McLean, J. M. McMahon, S. P. Obenschain, J. A. Stamper, R. R. Whitlock, F. C. Young

Author Affiliations +

Proceedings Volume 0279, Ultraviolet and Vacuum Ultraviolet Systems; (1981) https://doi.org/10.1117/12.965706
Event: 1981 Technical Symposium East, 1981, Washington, D.C., United States

Abstract

Laser fusion involves the compression using very high power laser beams of a pellet containing fusionable fuel, such as a deuterium-tritium mixture, to such high densities and temperatures that it ignites and yields a net energy gain. The deposited energy causes a plasma to ablate from the target surface which drives the implosion. The physics issues to achieve success are numerous; they include: the laser absorption and pellet surface acceleration processes must be benign and efficient; uniform megabar pressures must be gen-erated by the ablating plasma to accelerate the target shell inward with a velocity over 150 km/sec and with about 1% accuracy; throughout this implosion the fuel must remain cold. To study these physics issues a number of novel diagnostics gre required. They involve measurements of photon and particle energies from 1 eV to 10 5 eV with subnanosecond time-resolution and micron spatial resolution. Many of these diagnostic techniques and their applications in the NRL laser fusion experiment are described.

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B. H. Ripin, S. E. Bodner, J. Grun, M. J. Herbst, E. A. McLean, J. M. McMahon, S. P. Obenschain, J. A. Stamper, R. R. Whitlock, and F. C. Young "Diagnostics Of Laser Fusion Physics Experiments", Proc. SPIE 0279, Ultraviolet and Vacuum Ultraviolet Systems, (9 November 1981); https://doi.org/10.1117/12.965706

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