Greifswald 2024 – scientific programme

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P: Fachverband Plasmaphysik

P 12: Poster II

P 12.28: Poster

Tuesday, February 27, 2024, 16:30–18:30, ELP 6: Foyer

Atomic cascade computations for astro and plasma physics — •Stephan Fritzsche — Helmholtz-Institut Jena, Germany — Friedrich-Schiller University Jena, Germany

Electronic structure calculations of atoms and ions have a long tradition in physics with many applications in astro and plasma physics. With the Jena Atomic Calculator (JAC), I here present a modern implementation of a (relativistic) electronic structure code for the computation of atomic amplitudes, properties and cascades. JAC [1,2] is based on Julia, a new programming language for scientific computing, and provides an easy-to-use but powerful platform to model excitation and decay processes of open-shell atoms and ions across the periodic table. This toolbox also provides useful features to predict plasma rate coefficients for different capture and ionization processes.

[1] S. Fritzsche. A fresh computational approach to atomic structures, processes and cascades. Comp.Phys.Commun., 240, 1 (2019), DOI:10.1016/j.cpc.2019.01.012.

[2] S. Fritzsche. JAC: User Guide, Compendium & Theoretical Background. https://github.com/OpenJAC/JAC.jl, unpublished (02.11.2023).

Keywords: atomic properties and processes; atomic cascades; Jena Atomic Calculator; plasma rate coefficients; relativistic electronic structure