Mainz 2017 – wissenschaftliches Programm
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A: Fachverband Atomphysik
A 31: Poster Session III
A 31.19: Poster
Donnerstag, 9. März 2017, 17:00–19:00, P OG1
Spectroscopy of highly charged ions using a main magnetic focus ion trap — •Marc Keil1, Alexander Borovik Jr.1, Stefan Schippers1, and Alfred Müller2 — 1I. Physikalisches Institut, Justus-Liebig-Universität Gießen — 2Institut für Atom- und Molekülphysik, Justus-Liebig-Universität Gießen
The Main Magnetic Focus Ion Trap (MaMFIT [1]), a compact tool for spectroscopy of highly-charged ions, has been recently installed in Giessen and has already been employed for investigation of dielectronic recombination in highly-charged iridium ions [2]. The present construction, however, restricts the experimental access exclusively to ions of the cathode material, which, in the present case is iridium. We report on an effort to upgrade the presently available MaMFIT device to enhance its versatility thus enabling experimental access to ions of a wider spectrum of elements. This construction and the installation of a ballistic gas inlet system [3] should facilitate fine-dosed delivery of the desired working gas directly into the ion trap region. The development of a system for periodic ion-trap dumping should prevent the accumulation of iridium ions sputtered from the cathode thus enabling us to trap light ions. Test measurements involving Arq+ ions are envisaged for the near future.
[1] V. P. Ovsyannikov, A.V. Nefiodov, Nucl. Instr. Meth. Phys. Res. B 370 (2016) 32-41.
[2] A. Borovik, Jr et al., to be published.
[3] K. Fahy, Phys. Rev A 75 (2007) 032520.