External interactions and Nuclear Effects in Atoms for Plasma Diagnostics and Fundamental Physics
- Contact person:
- Per Jönsson
- Responsible at Malmö University:
- Per Jönsson
- Project members:
- Tomas Brage - Lunds universitet
- Time frame:
- 01 January 2016 - 31 December 2020
About the project
Atomic electrons are sensitive probes of the surrounding plasma environment. Element abundances, electron density, temperature etc. affect the emitted light. In a similar way, atomic electrons are also sensitive to properties of the nucleus they are bound to, such as nuclear mass, charge distribution and deformation, spin, and magnetization. Different isotopes have slightly displaced energy levels.
To determine plasma parameters as well as information about the nucleus from the emitted light spectrum it is crucial to understand and accurately describe atomic structures and interactions. Based on accurate quantum mechanical calculations of magnetically induced atomic transitions we will develop a new and original method to determine magnetic fields in astrophysical and fusion plasmas. Applications to astrophysical and fusion plasmas will be inquired together with the EBIT group at Fudan University, the High Altitude Observatory, and the National Institute for Fusion Science (Japan).
Starting from ground breaking ideas on how to account for correlation between atomic electrons, we will develop highly accurate methods for computing atomic parameters that, together with experimental data for transition isotope shift, make it possible to determine fundamental nuclear parameters. The development of the computational methods will be done in collaboration with the international Computational Atomic Structure group, consisting of leading scientists in the field.