24-25 April 2017
GSI Helmholtzzentrum für Schwerionenforschung
Europe/Berlin timezone

Dielectronic-recombination processes in highly-charged heavy ions

24 Apr 2017, 19:10
2h
Hörsaal KBW 1.017 (GSI Helmholtzzentrum für Schwerionenforschung)

Hörsaal KBW 1.017

GSI Helmholtzzentrum für Schwerionenforschung

Planckstraße 1 64291 Darmstadt Germany
Poster Atomic structure Posters

Speaker

Dr Alexander Borovik (Justus-Liebig Universität Gießen)

Description

Dielectronic-recombination (DR) spectra of highly-charged W$^{𝑞+}$ and Ir$^{𝑞+}$ ions have been measured by employing the Electron-Beam Ion Trap (EBIT) at National Institute of standards and Technology [1] and the Main Magnetic Focus Ion Trap (MaMFIT) [2] at Justus-Liebig Universität Gießen, respectively, over wide ranges of electron-beam energies. A series of DR resonances involving transitions between 2𝑙 → 3𝑙′ and 2𝑙 → 4𝑙′ subshells in Na-like through Ar-like tungsten have been revealed in the NIST EBIT spectra, while in the MaMFIT, DR resonances involving transitions between 2𝑙 → 3𝑙′ subshells in K-like through Ni-like iridium were seen. Detailed modeling of the observed spectra has been performed.

Primary author

Dr Alexander Borovik (Justus-Liebig Universität Gießen)

Co-authors

Prof. Alfred Müller (JLU Giessen) Dr Dipti Dipti (Quantum Measurement Division, National Institute of Standards and Technology, Gaithersburg MD, USA) Prof. Endre Takács (Department of Physics and Astronomy, Clemson University, Clemson SC, USA) Dr Joan Dreiling (Quantum Measurement Division, National Institute of Standards and Technology, Gaithersburg MD, USA) Dr John Gillaspy (Division of Physics, National Science Foundation, Arlington VA, USA) Dr Kurt Huber (Institut für Atom- und Molekülphysik, Justus-Liebig- Universität Gießen) Prof. Ramaz Lomsadze (Department of Physics, Ivane Javakhishvili Tbilisi State University, Tbilisi, Georgia) Mrs Roshani Silwal (Quantum Measurement Division, National Institute of Standards and Technology, Gaithersburg MD, USA) Dr VLDIMIR OVSYANNIKOV (Dresden MaMFIS Grup) Dr Yuri Ralchenko (Quantum Measurement Division, National Institute of Standards and Technology, Gaithersburg MD, USA)

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