Bonn 2025 – wissenschaftliches Programm
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A: Fachverband Atomphysik
A 35: Poster – Precision Spectroscopy of Atoms and Ions (joint session A/Q)
A 35.17: Poster
Donnerstag, 13. März 2025, 17:00–19:00, Tent
Recent advances at the AntiMatter-On-a-Chip (AMOC) project — •Vladimir Mikhailovskii1, Natalija Sheth1, Yuzhe Zhang1, Hendrik Bekker1, Günther Werth2, Guofeng Qu3, Zhiheng Xue4, K. T Satyajith5, Qian Yu6, Neha Yadav6, Hartmut Häffner6, Ferdinand Schmidt-Kaler7, and Dmitry Budker1, 2, 6 — 1Helmholtz-Institut Mainz, GSI Helmholtzzentrum fur Schwerionenforschung, Mainz, Germany — 2Johannes Gutenberg-Universitat, Mainz, Germany — 3Institute of Nuclear Science and Technology, Sichuan University, Chengdu, China — 4University of Science and Technology of China, Hefei, China — 5Nitte, Mangalore, India — 6Department of Physics, University of California, Berkeley, USA — 7QUANTUM, Institute für Physik, Johannes Gutenberg-Universitat, Mainz, Germany
AMOC aims at production of antihydrogen by confining positrons and
antiprotons in the same radiofrequency (RF) trap [1]. The general project
workflow includes development of a RF
trap for cotrapping e+ and p−, and their sources.
The current stage is focused on testing the dual-frequency RF trap with
e− and Ca+ ions, and development of low energy e+ source.
The RF trap used is a linear one made of 3 printed boards [2]
and is capable of trapping e− and Ca+. For
low energy e+ production, we plan to use a Na-22 source with moderator and a
buffer gas trap. In this report, we give an overview of the project, main experimental and simulation results, and discuss future steps.
1. N. Leefer, et al. Hyperfine Interact 238, 12 (2017)
2. C. Matthiesen et al, Phys. Rev. X; 11, 011019 (2021)
Keywords: Antimatter production; Radiofrequency trap; electrons trapping; ion trapping