Sprecher
Beschreibung
Dielectronic recombination (DR) is widely recognized as the dominant electron–ion recombination mechanism in many astrophysical and laboratory plasmas, where it plays a crucial role in determining ionization balances and level populations over a broad temperature range. Moreover, DR experiments of highly charged ions (HCIs) at the storage rings have been developed as a precision spectroscopic tool to investigate the atomic structure as well as nuclear properties of stable and unstable nuclei.
In this talk, We will introduce our recent experimental progress on dielectronic recombination of astrophysically relevant ions performed at the CSRm storage ring in Lanzhou, China, together with the related state-of-the-art theoretical work. Furthermore, We will also present simulations of hyperfine-resolved DR spectra for several interesting highly charged ions, with a particular focus on bismuth ions. These studies provide useful theoretical guidance for future high-precision measurements of hyperfine splitting in HCIs using storage-ring merged-beam DR spectroscopy, especially at next-generation facilities such as HIAF in Huizhou, China, and FAIR in Darmstadt, Germany.
