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Injektion, Speicherung und Abbildung hochgeladener Argon-Ionen in der kryogenen Paul-Falle CryPTEx

MPG-Autoren
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Piest,  Baptist
Division Prof. Dr. Thomas Pfeifer, MPI for Nuclear Physics, Max Planck Society;

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MasterarbeitPiest.pdf
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Zitation

Piest, B. (2015). Injektion, Speicherung und Abbildung hochgeladener Argon-Ionen in der kryogenen Paul-Falle CryPTEx. Master Thesis, Ruprecht-Karls-Universität, Heidelberg.


Zitierlink: https://hdl.handle.net/11858/00-001M-0000-0027-A7E4-3
Zusammenfassung
Precision spectroscopy of forbidden optical transitions in highly charged ions is of particular interest for fundamental physics research as well as metrology. Due to the lack of suitable cooling transitions in highly charged ions, they must be cooled by means of the sympathetic cooling technique to obtain cryogenic temperatures. This master thesis deals with the injection and storage of highly charged Ar13+ ions in the cryogenic Paul trap CryPTEx (Cryogenic Paul Trap Experiment). For this purpose, the ions are produced in and extracted from an electron beam ion trap (EBIT). Storage times of up to 70 ms were succesfully demonstrated within the Paul trap. This is a prerequisite for the implantation of the ions into a Be+-coulomb crystal which is used for sympathetic cooling of the Ar13+ ions. The process of injection and storage is described by simulations. For extraction and further investigation of the stored ions, an electrostatic detector and energy sensitive detector has been constructed. The second part of this thesis is about three-dimensional (3D-) imaging of Be+ coulomb crystals with a plenoptic camera. The camera setup is developed in this thesis and could be tested in a similar testsetup. This type of imaging is of particular interest for understanding the spatial structure of 3D Be+-coulomb crystals with individually implanted highly charged ions and as input for molecular-dynamics simulations.