A1 Journal article (refereed)
Production study of Fr, Ra and Ac radioactive ion beams at ISOLDE, CERN (2024)

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

JYU authors or editors

Publication details

All authors or editorsJajčišinová, 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.; et al.

Journal or seriesScientific Reports


Publication year2024

Publication date14/05/2024


Article number11033

PublisherSpringer Nature

Publication countryUnited Kingdom

Publication languageEnglish


Publication open accessOpenly available

Publication channel open accessOpen Access channel

Publication is parallel published (JYX)https://jyx.jyu.fi/handle/123456789/95311


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.

Keywordsnuclear physicsparticle physicsisotopescancer treatments

Free keywordsexperimental nuclear physics; targeted therapies

Contributing organizations

Related projects

Ministry reportingYes

Reporting Year2024

Preliminary JUFO rating1

Last updated on 2024-15-06 at 01:46