RILIS-ionized mercury and tellurium beams at ISOLDE CERN

This paper presents the results of ionization scheme development for application at the ISOLDE Resonance Ionization Laser Ion Source (RILIS). Two new ionization schemes for mercury are presented: a three-step three-resonance ionization scheme, ionizing via an excitation to a Rydberg level and a thre...

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Bibliographic Details
Published in:Hyperfine interactions 2017, Vol.238 (1), p.1-10, Article 41
Main Authors: Day Goodacre, T., Billowes, J., Chrysalidis, K., Fedorov, D. V., Fedosseev, V. N., Marsh, B. A., Molkanov, P. L., Rossel, R. E., Rothe, S., Seiffert, C., Wendt, K. D. A.
Format: Article
Language:English
Subjects:
16–19 May 2016
Atomic
Condensed Matter Physics
Efficiency
Hadrons
Heavy Ions
Ion sources
Ionization
Mercury (metal)
Molecular
Nuclear Physics
Optical and Plasma Physics
Physics
Physics and Astronomy
Poland
Poznań
Proceedings of the 10th International Workshop on Application of Lasers and Storage Devices in Atomic Nuclei Research: “Recent Achievements and Future Prospects” (LASER 2016)
Resonance
Surfaces and Interfaces
Tellurium
Thin Films
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Summary:This paper presents the results of ionization scheme development for application at the ISOLDE Resonance Ionization Laser Ion Source (RILIS). Two new ionization schemes for mercury are presented: a three-step three-resonance ionization scheme, ionizing via an excitation to a Rydberg level and a three-step two-resonance ionization scheme, with a non-resonant final step to the ionization continuum that corresponded to a factor of four higher ionization efficiency. The efficiency of the optimal mercury ionization scheme was measured, together with the efficiency of a new three-step three resonance ionization scheme for tellurium. The efficiencies of the mercury and tellurium ionization schemes were determined to be 6 % and >18 % respectively.
ISSN:0304-3843
1572-9540
DOI:10.1007/s10751-017-1398-6