Half-life determination of 215At and 221Ra with high-purity radioactive ion beams
Bara, S., Jajčišinová, E., Cocolios, T. E., Andel, B., Antalic, S., Camaiani, A., Costache, C., Dockx, K., Farooq-Smith, G. J., Kellerbauer, A., Lica, R., Lynch, K.M., Marini, P., Piersa-Siłkowska, M., Stegemann, S.T., Stryjczyk, M., Treasa, D., & Van Duppen, P. (2024). Half-life determination of 215At and 221Ra with high-purity radioactive ion beams. Applied Radiation and Isotopes, 208, Article 111289. https://doi.org/10.1016/j.apradiso.2024.111289
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Applied Radiation and IsotopesDate
2024Access restrictions
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© 2024 Elsevier
At CERN-ISOLDE, high-purity radioactive ion beams of 219Fr and 221RaF were investigated with 𝛼-decay spectroscopy at the CRIS and ASET experiments in the course of three different experimental campaigns. The half-life of 215At, 𝛼-decay daughter of 219Fr, is measured to be 36.3(3)[9] μs, and that of 221Ra was determined to be 26.2(1)[6] s, both of which are well in line with the trends in this region of the nuclear landscape but at odds with some of the reported literature.
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Academy Project, AoFAdditional information about funding
This work has received funding from the FWO-Vlaanderen (Belgium), KU Leuven (STG/15/031, C14/22/104), and FWO, Belgium and F.R.S.-FNRS, Belgium under the Excellence of Science (EOS) programme (grant no. 40007501); from the Science and Technology Facilities Council, United Kingdom grants ST/G006415/1, ST/L005794/1, ST/L005786, ST/P004423/1, and Ernest Rutherford Grant no. ST/L002868/1; from the European Union Seventh Framework through ENSAR(506065); from the ERC Consolidator grants no. 648381 (FNPMLS), no. 771036 (ERC CoG MAIDEN), and no. 101088504 (NSHAPE); from the European Union’s Horizon 2020 research and innovation programme under grant agreement no. 642889 (MEDICIS-Promed); from the Romanian IFA grant CERN/ ISOLDE and Nucleu project no. PN 23 21 01 02; from the Scientific Grant Agency VEGA, Slovak Republic (Contract No. 1/0651/21) and Slovak Research and Development Agency (Contract no. APVV-18-0268); from the Academy of Finland (project No. 354968). ...License
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