Time-dependent Analysis of Electron–Ion Temperature Evolution in Solid-density Samples Heated by Laser-accelerated Ion Beams Chiwan Song Gwangju Institute of Science and Technology

Abstract

This study uses computational modeling to investigate the time-dependent evolution of electron and ion temperatures in solid-density materials heated by laser-accelerated ion beams. A two-temperature model simulates the thermal response of the target, incorporating cold stopping power data from SRIM, electron-ion coupling factors from the literature, and SESAME equation-of-state tables. The analysis examines the effects of ion species, energy spectra, and time-of-flight on energy deposition and the resulting temperature distributions. Simulation results provide time-resolved spatial profiles of electron and ion temperatures, emphasizing heating uniformity. The study offers a theoretical basis for interpreting ion-beam driven heating experiments and supports the design of future warm dense matter generation experiments using high-energy ion beams.