Hot Electron Generation Using High Intensity Laser Pulses on Machined Conical Targets

POSTER

Abstract

The relative number of the fast electrons has been experimentally measured for a high intensity (4x10$^{20 }$W/cm$^{2})$ laser pulse interaction with in situ machined conical aluminum targets. It is shown that the number of electrons and the plasma x-ray signal strongly depends on the cone depth. The cone was laser machined immediately before the 30 TW pulse arrival possibly allowing for a faster, cheaper alternative to traditional conical targets. Particle-in-cell simulations performed for the experimental conditions will be presented. Laser machined conical targets provide a higher laser conversion efficiency into hot electrons.

*Supportedby NSF grant PHY-0114336, NIH grant R21CA120262-01

Authors

  • Takeshi Matsuoka

    • FOCUS Center and CUOS, University of Michigan
    • FOCUS Center and CUOS, University of Michigan, Ann Arbor, Michigan

  • Stephen Reed

    • FOCUS Center and CUOS, University of Michigan
    • FOCUS Center and CUOS, University of Michigan, Ann Arbor, Michigan

  • Stepan Bulanov

    • FOCUS Center and CUOS, University of Michigan
    • FOCUS Center and CUOS, University of Michigan, Ann Arbor, Michigan
    • FOCUS and CUOS, University of Michigan

  • Vladimir Chvykov

    • FOCUS Center and CUOS, University of Michigan
    • FOCUS Center and CUOS, University of Michigan, Ann Arbor, Michigan

  • Andrei Brantov

    • Lebedev Physics Institute
    • Lebedev Physics Institute, Russian Academy of Sciences, Moscow

  • Valery Bychenkov

    • Lebedev Physics Institute
    • P.N. Lebedev Physics Institute, RAS, Moscow, Russia
    • Lebedev Physics Institute, Russian Academy of Sciences, Moscow

  • Galina Kalinchenko

    • FOCUS Center and CUOS, University of Michigan
    • FOCUS Center and CUOS, University of Michigan, Ann Arbor, Michigan

  • Chris McGuffey

    • FOCUS Center and CUOS, University of Michigan
    • FOCUS Center and CUOS, University of Michigan, Ann Arbor, Michigan
    • University of Michigan Focus Center

  • Pascal Rousseau

    • FOCUS Center and CUOS, University of Michigan
    • FOCUS Center and CUOS, University of Michigan, Ann Arbor, Michigan

  • Victor Yanovsky

    • FOCUS Center and CUOS, University of Michigan
    • FOCUS Center and CUOS, University of Michigan, Ann Arbor, Michigan

  • Dale Litzenberg

    • Dept of Radiation Oncology, University of Michigan
    • Department of Radiation Oncology, University of Michigan, Ann Arbor, Michigan

  • Karl Krushelnick

    • FOCUS Center and CUOS, University of Michigan
    • FOCUS Center and CUOS, University of Michigan, Ann Arbor, Michigan
    • University of Michigan
    • UM Focus

  • Anatoly Maksimchuk

    • FOCUS Center and CUOS, University of Michigan
    • University of Michigan
    • FOCUS Center and CUOS, University of Michigan, Ann Arbor, Michigan