Investigating the impact of field ionization 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 en- ergies 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 as well as investigates convergence and code performance.
*Work performed under the auspices of the U.S. DOE by Triad National Security, LLC, and Los Alamos National Laboratory. This work was sup- ported the LANL Laboratory Directed Research and Development program. High-performance computing resources were provided by LANL's Institutional Computing program. LA-UR-24-26186
Presenters
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Brandon M Medina
- Los Alamos National Laboratory