Hannover 2010 – wissenschaftliches Programm

Bereiche | Tage | Auswahl | Suche | Downloads | Hilfe

Q: Fachverband Quantenoptik und Photonik

Q 21: Poster I

Q 21.37: Poster

Dienstag, 9. März 2010, 16:00–19:00, Lichthof

Atomic structure of the Th II — •Jerzy Dembczyński, Magdalena Elantkowska, Jarosław Ruczkowski, Danuta Stefańska, and Gustaw Szawioła — Chair of Quantum Engineering and Metrology, Faculty of Technical Physics, Poznan University of Technology, Nieszawska 13B, 60-965 Poznan, Poland

Recently, the ²²⁹Th isomer attracts attention, as a possible optical frequency standard. The detailed knowledge concerning the fine and hyperfine structures of the thorium isomer should help in searching for the transition suitable for detecting of the clock isomer resonance.

It stimulates our extensive work on the fine structure of ²³²Th and the hyperfine structure of ²²⁹Th. In our multi-configuration, semiempirical calculations, based on the experimental data, we determine the even and odd parity level scheme of Th ion, taking into account higher excited electron configurations. The predicted values of the hyperfine splittings of ²²⁹Th will be also presented.

This work was supported by Polish Ministry of Science and Higher Education under the project N519 033 32/4065