https://doi.org/10.1140/epjd/s10053-025-01031-9
Regular Article - Atomic and Molecular Collisions
Electron-impact multiple ionization in JAC: integration and application
1
GSI Helmholtzzentrum für Schwerionenforschung, 64291, Darmstadt, Germany
2
School of Nuclear Science and Technology, Lanzhou University, 730000, Lanzhou, People’s Republic of China
3
Helmholtz-Institut Jena, Fröbelstieg 3, 07743, Jena, Germany
4
Theoretisch-Physikalisches Institut, Friedrich-Schiller-Universität Jena, 07743, Jena, Germany
Received:
22
March
2025
Accepted:
23
June
2025
Published online:
9
July
2025
Electron-impact ionization cross sections are essential for plasma modeling. However, most previous studies have largely overlooked electron-impact multiple ionization (EIMI) processes. The EIMI process is expected to be important especially in high-temperature, non-equilibrium, or non-Maxwellian plasmas. Due to the current impracticality of quantum-mechanical calculations for EIMI cross sections, we here describe the integration of four semi-empirical models into JAC, the Jena Atomic Calculator. We demonstrate the applicability of these distinct models in accurately estimating EIMI cross sections. This module is intended to provide a fast and reliable tool for application to various, especially to understand the role of EIMI processes in astrophysics and the investigation of laser–particle interaction processes.
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© The Author(s), under exclusive licence to EDP Sciences, SIF and Springer-Verlag GmbH Germany, part of Springer Nature 2025
Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
