Time- and space- resolved pyrometry of dense plasmas heated by laser accelerated ion beams

POSTER

Abstract

Laser driven ion sources have a variety of possible applications, including the rapid heating of matter to dense plasma states of several eV. Recent experiments at LANL and The University of Texas have explored ion heating in the context of mixing at high-Z / low-Z plasma interfaces, using different laser-based ion acceleration schemes. Quasi-monoenergetic and highly directed Al ions from ultra-thin foils were used in one set of experiments, while TNSA accelerated protons from an F/40 focused petawatt laser were used in the other. Using spatially and temporally resolved streaked optical pyrometry we have gained insight into the degree and uniformity of heating from various configurations of ion source and sample target. Here we present data and analysis from three experimental runs along with hydrodynamic modeling of the heated targets and geometric considerations.

*This work was supported by NNSA cooperative agreement DE- NA0002008 and the Los Alamos National Laboratory Directed Research and Development Program under the auspices of the U.S. DOE NNSAS, LLC, Los Alamos National Laboratory under Contract No. DE-AC52-0

Authors

  • Gilliss Dyer

    • University of Texas, Austin
    • University of Texas at Austin

  • Rebecca Roycroft

    • University of Texas, Austin

  • Eddie McCary

    • University of Texas, Austin

  • Craig Wagner

    • University of Texas, Austin

  • Xuejing Jiao

    • University of Texas, Austin

  • Rotem Kupfer

    • University of Texas, Austin

  • D. Cort Gauthier

    • Los Alamos National Laboratory

  • Woosuk Bang

    • Los Alamos National Laboratory

  • Sasikumar Palaniyappan

    • Los Alamos National Laboratory

  • Paul A. Bradley

    • Los Alamos National Laboratory

  • Christopher Hamilton

    • Los Alamos National Laboratory

  • Miguel A. Santiago Cordoba

    • Los Alamos National Laboratory

  • Erik L. Vold

    • Los Alamos National Laboratory

  • Lin Yin

    • Los Alamos National Laboratory

  • Juan C. Fernandez

    • Los Alamos National Laboratory

  • Brian J. Alibright

    • Los Alamos National Laboratory

  • Todd Ditmire

    • University of Texas, Austin

  • Bjorn Manuel Hegelich

    • University of Texas, Austin