SAMOP 2023 – wissenschaftliches Programm
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A: Fachverband Atomphysik
A 2: Collisions, Scattering and Correlation Phenomena
A 2.5: Vortrag
Montag, 6. März 2023, 12:00–12:15, F107
First Dielectronic Recombination Measurements with Low-Charged Heavy Ions at the Cryogenic Storage Ring — •Leonard W. Isberner1,2, Manfred Grieser2, Robert von Hahn2, Zoltán Harman2, Ábel Kálosi3,2, Christoph H. Keitel2, Claude Krantz4, Daniel Paul3,2, Daniel W. Savin3, Suvam Singh2, Andreas Wolf2, Stefan Schippers1, and Oldřich Novotný2 — 1I. Physikalisches Institut, Justus-Liebig-Universität Gießen, Gießen, Germany — 2Max-Planck-Institut für Kernphysik, Heidelberg, Germany — 3Columbia Astrophysics Laboratory, Columbia University, New York, NY, USA — 4GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, Germany
Accurate plasma modeling, e.g. for astrophysical environments, requires detailed information on fundamental processes such as the recombination of free electrons with atomic ions. Although electron-ion recombination has been investigated in magnetic heavy ion storage rings over the past three decades, those studies were restricted to ions with low to moderate mass-to-charge ratios due to the relatively high residual gas pressure in magnetic storage rings. The electrostatic Cryogenic Storage Ring (CSR), located at the Max-Planck-Institut für Kernphysik in Heidelberg, provides excellent vacuum conditions and thus offers a unique environment for recombination studies with high mass-to-charge ratio ions. Here we report on the first recombination measurements with atomic ions at CSR. Our observations of resonant recombination features for Ne2+ and Xe3+ demonstrate the feasibility of atomic recombination studies with low-charged heavy ions at CSR.