Exploring field ionization effects on laser-target interaction simulations using VPIC

POSTER

Abstract

X-ray radiography using a high-power short-pulse lasers to generate x-rays is of interest as this technology can create a spot <100 microns in size for energies of tens of MeV. The development and design of laser-based radiography systems can be optimized with predictive simulations of which should include laser-target interactions, such as field ionization. We have implemented multiphoton ionization and the Ammosov-Delone-Krainov (ADK) model with the barrier-suppression ionization (BSI) correction into the particle-in-cell code VPIC. This work explores the effects of field ionization on various laser-target interaction simulations and investigates how different implementations of the model affects the results.

*Work performed under the auspices of the U.S. DOE by Triad National Security, LLC, and Los Alamos National Laboratory. This work was supported the LANL Laboratory Directed Research and Development program. High-performance computing resources were provided by LANL's Institutional Computing program. LA-UR-23-2744

Presenters

  • Brandon M Medina

    • Los Alamos National Laboratory

Authors

  • Brandon M Medina

    • Los Alamos National Laboratory

  • Scott V Luedtke

    • Los Alamos National Laboratory

  • Chengkun Huang

    • Los Alamos Natl Lab
    • Los Alamos National Laboratory, Los Alamos, NM 87544, USA

  • Alexander G Seaton

    • Los Alamos National Laboratory
    • Los Alamos National Laboratory, Los Alamos, NM 87544, USA

  • Lin Yin

    • Los Alamos Natl Lab

  • Brian J Albright

    • Los Alamos Natl Lab
    • Los Alamos National Laboratory, Los Alamos, NM 87544, USA