Production study of Fr, Ra and Ac radioactive ion beams at ISOLDE, CERN
Abstract
The presented paper discusses the production of radioactive ion beams of francium, radium, and actinium from thick uranium carbide (UCx) targets at ISOLDE, CERN. This study focuses on the release curves and extractable yields of francium, radium and actinium isotopes. The ion source temperature was varied in order to study the relative contributions of surface and laser ionization to the production of the actinium ion beams. The experimental results are presented in the form of release parameters. Representative extractable yields per µC are presented for 222−231Ac, several Ra and Fr isotopes in the mass ranges 214≤A≤233 and 205≤A≤231 respectively. The release efficiency for several isotopes of each of the studied elements was calculated by comparing their yields to the estimated in-target production rates modeled by CERN-FLUKA. The maximal extraction efficiency of actinium was calculated to be 2.1(6)% for a combination of surface ionization using a Ta ion source and resonant laser ionization using the two-step 438.58 nm, and 424.69 nm scheme.
Main Authors
Format
Articles
Research article
Published
2024
Series
Subjects
Publication in research information system
Publisher
Springer Nature
The permanent address of the publication
https://urn.fi/URN:NBN:fi:jyu-202405294076Use this for linking
Review status
Peer reviewed
ISSN
2045-2322
DOI
https://doi.org/10.1038/s41598-024-60331-z
Language
English
Published in
Scientific Reports
Citation
- Jajčišinová, E., Dockx, K., Au, M., Bara, S., Cocolios T., E., Chrysalidis, K., Farooq-Smith G., J., Fedorov D., V., Fedosseev V., N., Flanagan K., T., Heines, M., Houngbo, D., Johnson J., D., Kellerbauer, A., Kraemer, S., Marsh B., A., Popescu, L., Ramos J., P., Rothe, S., . . . Verelst, V. (2024). Production study of Fr, Ra and Ac radioactive ion beams at ISOLDE, CERN. Scientific Reports, 14, Article 11033. https://doi.org/10.1038/s41598-024-60331-z
License
Funder(s)
European Commission
Research Council of Finland
Funding program(s)
ERC Consolidator Grant
Academy Project, AoF
ERC Consolidator Grant
Akatemiahanke, SA
Funded by the European Union. Views and opinions expressed are however those of the author(s) only and do not necessarily reflect those of the European Union or the European Education and Culture Executive Agency (EACEA). Neither the European Union nor EACEA can be held responsible for them.
Additional information about funding
This work has received funding from the European Commission under Horizon 2020, Marie Sklodowska Curie Actions, ITN contracts No. 642889 (MEDICIS-Promed) and No. 861198 (LISA), Horizon 2020 research and innovation programme contracts No. 654002 (ENSAR2) and No. 101008571 (PRISMAP), ERC Consolidator Grant No. 771036 (MAIDEN) and No. 101088504 (NSHAPE), from the Research Foundations Flanders (FWO, Belgium), from KU Leuven (STG/15/031, C14/22/104), from the Science and Technology Facilities Council grant ST/P004423/1 and from the Academy of Finland grant No. 354968. E.J. acknowledges the support of the Collaborative Doctoral Partnership of the Joint Research Centres of the European Commission No. 35332 between JRC Karlsruhe and KU Leuven. S.B. acknowledges the support of the FWO Fellowship.
Copyright© The Author(s) 2024