Freiburg 2024 – scientific programme
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A: Fachverband Atomphysik
A 16: Poster II
A 16.5: Poster
Tuesday, March 12, 2024, 17:00–19:00, Tent B
Further commissioning and upgrades of the ARTEMIS experiment at HITRAP for high-precision g-factor measurements with highly charged ions — •Bianca Reich1,2, Arya Krishnan1,3, Johannes Krempel-Hesse1,4, K Kanika1, Jeffrey Klimes1, Kwaish Anjum1,5, Patrick Baus1,3, Gerhard Birkl1,3, Manuel Vogel1, and Wolfgang Quint1,2 — 1GSI Helmholtzzentrum für Schwerionenforschung GmbH, Darmstadt, DE — 2University of Heidelberg, DE — 3Technical University of Darmstadt, DE — 4University of Gießen, DE — 5University of Jena, DE
The ARTEMIS experiment [Quint et al., Phys. Rev. A 78 032517 (2008)] at GSI aims to measure the g-factor of the electron bound in heavy highly charged ions. Laser-microwave double-resonance spectroscopy is performed on such ions captured and stored inside a dedicated Penning trap [M. Wiesel et al., Rev. Sci. Inst. 88 123101 (2017)]. First commissioning has demonstrated successful in-trap ion production, storage, selection and cooling [Kanika et al., J. Phys. B 56 175001 (2023)]. For access to heavy few-electron ions, ARTEMIS is connected to the HITRAP facility via a beamline that features dedicated ion optics, non-destructive ion detectors, and a cryogenic fast-opening valve [Klimes et al., Rev. Sci. Instrum. 94 113202 (2023)] which keeps the extreme vacuum of the trap stable while allowing access for ions and laser light. This beamline is constantly being upgraded towards efficient and well-controlled ion injection. We present the status and design updates of this beamline and discuss new spectroscopy candidate ions such as boron-like sulfur S11+.
Keywords: g-factor; Highly charged ions; Precision experiment; Laser-mircrowave double-resonance spectroscopy; Cryogenic applications