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Modeling the Interaction of Laser-Produced Proton Beams with Matter

Authors:
Jack McKee
David Eder
Aaron Fisher
Alice Koniges
Claudia Parisua
Maxence Gauthier
Elizabeth McBride
Frank Seiboth
Chandra Breanne Curry
Mungo Frost
Eric Galtier
Siegfried Glenzer

Keywords: Adaptive Mesh Refinement; Computational Fluid Dynamics; Arbitrary Lagrangian Eulerian Methods; High Performance Computing; isochoric heating; Phase Contrast Microscopy; X-ray Diffraction; X-ray Free Electron Lasers.

Abstract:
The paper reports on efforts to significantly increase our understanding of isochoric heating of matter using laser-produced proton beams, and the associated High Energy Density (HED) and Warm Dense Matter (WDM) regimes generated. This will benefit research fields such as planetary science, fusion energy, plasma physics, long-term battery storage, qubit synthesis, and material science. We discuss our experiments that irradiated Si targets with proton beams generated by the 20 TW-laser at the SLAC MEC end-station, Linac Coherent Light Source (LCLS), SLAC National Accelerator Laboratory. The HED/WDM states are probed using the 50 fs hard X-rays using the fundamental undulator harmonic of LCLS. We compare our results from the phase contrast X-ray imaging, which shows the generation of compression waves that produces rear surface spallation, to modeling results from the 3D multi-physics multi-material code, PISALE, that combines Arbitrary Lagrangian-Eulerian (ALE) hydrodynamics with Adaptive Mesh Refinement (AMR). This comparison required modifications to several physics models in the PISALE (Pacific Island Structured-AMR with ALE) code.

Pages: 15 to 19

Copyright: Copyright (c) IARIA, 2025

Publication date: September 28, 2025

Published in: conference

ISSN: 2308-4499

ISBN: 978-1-68558-289-0

Location: Lisbon, Portugal

Dates: from September 28, 2025 to October 2, 2025