Bonn 2025 – wissenschaftliches Programm

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A: Fachverband Atomphysik

A 37: Poster – Highly Charged Ions and their Applications

A 37.9: Poster

Donnerstag, 13. März 2025, 17:00–19:00, Tent

Optimising the efficiency of a beamline for highly charged ions — •Melina Gizewski, Stepan Kokh, Finja Mayer, Ruben Henninger, Elwin Dijck, José R. Crespo López-Urrutia, Thomas Pfeifer, and Vera M. Schäfer — Max Planck Institut für Kernphysik Heidelberg

Highly charged ions (HCIs) are one of the most suitable systems to measure variations in the fine structure constant α, due to increased relativistic shift of energy levels at high charge states.

Our planned experimental setup includes generating HCIs in an electron beam ion trap (EBIT) and then retrapping them in two Paul traps to perform spectroscopy and measure the relevant atomic transition frequencies. Especially when using rare elements such as Cf¹⁷⁺, it is necessary to transport the HCIs from the EBIT to the Paul traps with the highest possible efficiency. Here the electrostatic bending in the beamline is of particular importance, since it severely limits the HCI transmission rates.

This poster will showcase simulations of different electrostatic bender designs and their corresponding beamlines.

Keywords: ion transport,; Ion simulatiom; Beamline simulation