2019/11/20 by Yingchao Lu, Hui Li, Kirk Flippo +5 · 8 citations
Physics and Astronomy · #Atomic physics #Computational physics #Detector #Gamma-ray bursts and supernovae #Ion #Ionization #Laser-Plasma Interactions and Diagnostics #Magnetic confinement fusion research #Monte Carlo method #Nuclear physics #Optics #Physics #Plasma #Proton #Scattering #Stopping power #physics.comp-ph #physics.plasm-ph
paper · pdf · doi:10.1063/1.5123392
published in Review of Scientific Instruments 90(12), 123503 (American Institute of Physics) · 11 pages, 4 figures
arxiv created 2019/11/20 · openalex publication_date 2019/12/01 · arxiv updated 2020/01/08 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/06
Proton radiography is used in various high-energy-density (HED) plasma experiments. In this paper, we describe a Monte Carlo and ray-tracing simulation tool called multimegaelectronvolt proton radiography (MPRAD) that can be used for modeling the deflection of proton beams in arbitrary three dimensional electromagnetic fields as well as the diffusion of the proton beams by Coulomb scattering and stopping power. The Coulomb scattering and stopping power models in cold matter and fully ionized plasma are combined using interpolation. We discuss the application of MPRAD in a few setups relevant to HED plasma experiments where the plasma density can play a role in diffusing the proton beams and affecting the prediction and interpretation of the proton images. It is shown how the diffusion due to plasma density can affect the resolution and dynamical range of the proton radiography.