DPG Phi
Verhandlungen
Verhandlungen
DPG

SMuK 2023 – wissenschaftliches Programm

Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe

P: Fachverband Plasmaphysik

P 16: Plasma Wall Interaction II/Codes and Modeling I

P 16.4: Vortrag

Donnerstag, 23. März 2023, 15:00–15:15, CHE/0091

Hyperfine structure splitting and the Zeeman effect of 83Kr in laser absorption spectroscopy investigated at the linear plasma device PSI-2 — •Marc Sackers1, Oleksandr Marchuk1, FNU Dipti2, Stephan Ertmer1, Yuri Ralchenko3, and Arkadi Kreter11Forschungszentrum Jülich GmbH - Institut für Energie- und Klimaforschung - Plasmaphysik, Partner of the Trilateral Euregio Cluster (TEC), 52425 Jülich, Germany — 2International Atomic Energy Agency, Vienna, Austria — 3National Institute of Standards and Technology - Atomic Spectroscopy Group, 20899 Gaithersburg, USA

Comparing Ar I and Kr I laser absorption spectra obtained at the linear plasma device PSI-2 indicate an additional line broadening in the case of Kr due to isotopic effects. The magnetic field configurations at PSI-2 provide weak field conditions for even numbered isotopes, i.e., a small perturbation on the energy level splitting. However, concerning 83Kr, the magnetic field strength (B) is de facto intermediate. This condition substantially increases the complexity of the spectra since the energy shift is non-linear in B and the intensities of the magnetic sub-transitions depend on B as well.

The analysis is based on a model by C. G. Darwin of the Zeeman effect at all field strengths [1]. Overall, the experimental investigation at the linear plasma device PSI-2 is limited to laser absorption spectra (20.5 mT to 90 mT) from the Kr I 5s J=2 and J=0 metastable levels using the 760.15 nm and 785.48 nm lines, respectively.

[1] C. G. Darwin, Proc. R. Soc. Lond. A 115, 1-19 (1927)

100% | Mobil-Ansicht | English Version | Kontakt/Impressum/Datenschutz
DPG-Physik > DPG-Verhandlungen > 2023 > SMuK