Modeling stopping power of ions in plasmas using parametric potentials

Barges Delattre Tanguy; Rassou Sébastien; Pain Jean-Christophe

doi:10.1063/5.0287744

Volume 10 Issue 6

Nov. 2025

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Barges Delattre Tanguy, Rassou Sébastien, Pain Jean-Christophe. Modeling stopping power of ions in plasmas using parametric potentials[J]. Matter and Radiation at Extremes, 2025, 10(6): 067603. doi: 10.1063/5.0287744

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Barges Delattre Tanguy, Rassou Sébastien, Pain Jean-Christophe. Modeling stopping power of ions in plasmas using parametric potentials[J]. Matter and Radiation at Extremes, 2025, 10(6): 067603. doi: 10.1063/5.0287744

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Modeling stopping power of ions in plasmas using parametric potentials

doi: 10.1063/5.0287744

1.
École Normale Supérieure de Lyon, CNRS, Laboratoire de Physique, F-69342 Lyon, France
2.
CEA, DAM, DIF, F-91297 Arpajon, France
3.
Laboratoire Matière en Conditions Extrêmes, Université Paris-Saclay, CEA, F-91680 Bruyères-le-Châtel, France

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Corresponding author: a)Author to whom correspondence should be addressed: jean-christophe.pain@cea.fr
Received Date: 2025-06-26
Accepted Date: 2025-09-11

Available Online: 2025-11-28

Publish Date: 2025-11-01

Abstract

Abstract

We present a study of the ion stopping power due to free and bound electrons in a warm dense plasma. Our main goal is to propose a method of stopping-power calculation expected to be valid for any ionization degree. The free-electron contribution is described by the Maynard–Deutsch–Zimmerman formula, and the bound-electron contribution relies on the Bethe formula with corrections, in particular taking into account density and shell effects. The results of the bound-state computation using three different parametric potentials are investigated within the Garbet formalism for the mean excitation energy. The first parametric potential is due to Green, Sellin, and Zachor, the second one was proposed by Yunta, and the third one was introduced by Klapisch in the framework of atomic-structure computations. The results are compared with those of self-consistent average-atom calculations. This approach correctly bridges the limits of neutral and fully ionized matter.

Conflict of Interest
The authors have no conflicts to disclose.
Author Contributions
Tanguy Barges Delattre: Conceptualization (equal); Data curation (equal); Formal analysis (equal); Investigation (equal); Methodology (equal); Resources (equal); Software (equal); Validation (equal); Writing – original draft (equal); Writing – review & editing (equal). Sébastien Rassou: Conceptualization (equal); Data curation (equal); Formal analysis (equal); Investigation (equal); Methodology (equal); Resources (equal); Software (equal); Validation (equal); Writing – original draft (equal); Writing – review & editing (equal). Jean-Christophe Pain: Conceptualization (equal); Data curation (equal); Formal analysis (equal); Investigation (equal); Methodology (equal); Resources (equal); Software (equal); Validation (equal); Writing – original draft (equal); Writing – review & editing (equal).
The data that support the findings of this study are available from the corresponding author upon reasonable request.

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References(54)

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