Record link: 
http://hdl.handle.net/20.500.12708/189700
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Title: 
Laser ionization scheme development for in-gas-jet spectroscopy studies of Th+
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Citation: 
Claessens, A., Ivandikov, F., Bara, S., Chhetri, P., Dragoun, A., Düllmann, C., Elskens, Y., Ferrer, R., Kraemer, S., Kudryavtsev, Y., Renisch, D., Romans, J., Rosecker, V., de Roubin, A., Schumm, T., Van den Bergh, P., & Van Duppen, P. (2023). Laser ionization scheme development for in-gas-jet spectroscopy studies of Th+. In T. Shin, D. S. Ahn, S. H. T. Ahn, & A. Navin (Eds.), Proceedings of the XIX International Conference on Electromagnetic Isotope Separators and Related Topics (EMIS 2022), IBS/RISP, Daejeon Korea, 3–7 October 2022 (pp. 224–226). Elsevier. https://doi.org/10.1016/j.nimb.2023.04.019
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Publisher DOI: 
10.1016/j.nimb.2023.04.019
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Publication Type: 
Inproceedings - Full-Paper Contribution
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Language: 
English
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Authors: 
Claessens, A. 
Ivandikov, F. 
Bara, S. 
Chhetri, P. 
Dragoun, A. 
Düllmann, Christoph 
Elskens, Y. 
Ferrer,R. 
Kraemer, Sandro 
Kudryavtsev, Yuri 
Renisch, D. 
Romans, J. 
Rosecker, Veronika 
de Roubin, A. 
Schumm, Thorsten 
Van den Bergh, P. 
Van Duppen, P. 
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Organisational Unit: 
E141-07 - Forschungsbereich Quantum Metrology 
E163-03-2 - Forschungsgruppe Molekulare Chemie und Chemische Biologie 
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Published in: 
Proceedings of the XIX International Conference on Electromagnetic Isotope Separators and Related Topics (EMIS 2022), IBS/RISP, Daejeon Korea, 3–7 October 2022 
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Date (published): 
Jul-2023
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Event name: 
XIX International Conference on Electromagnetic Isotope Separators and Related Topics (EMIS 2022) 
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Event date: 
3-Oct-2022 - 7-Oct-2022
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Event place: 
Daejeon, Korea (the Republic of)
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Number of Pages: 
3
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Publisher: 
Elsevier
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Keywords: 
Laser ionization
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Abstract: 
The in-gas laser ionization and spectroscopy (IGLIS) technique has been a cornerstone in the study of heavy elements. The addition of a convergent–divergent (de Laval) nozzle to perform laser ionization in a cold hypersonic gas jet greatly improves the achievable resolution. Recent efforts have focused on preparing the in-gas-jet method for the study of the low-lying 229Th isomer. Tailor-made recoil sources of 233U are installed inside a fast extraction gas cell to provide the (isomeric) thorium ions. A level search above the second ionization potential (IP) uncovered several auto-ionizing states, greatly improving the laser ionization efficiency of singly charged thorium ions.
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Research Areas: 
Materials Characterization: 100%
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Science Branch: 
1030 - Physik, Astronomie: 100%
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Appears in Collections:
Conference Paper

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