Properties of the new α-decaying isotope 190At
Abstract
The α decay of a new isotope 190At has been studied via the 109Ag(84Sr,3n)190At fusion-evaporation reaction by employing a gas-filled recoil separator. An α-particle energy of 7750(20) keV and a half-life of 1.0+1.4−0.4 ms were measured. The measured decay properties correspond to an unhindered α decay, suggesting the same spin and parity of (10−) as those of the final state of the decay. The systematics of the nearby nuclei and the predictions of selected atomic mass models were compared with the measured decay properties.
Main Authors
Format
Articles
Research article
Published
2023
Series
Subjects
Publication in research information system
Publisher
American Physical Society (APS)
The permanent address of the publication
https://urn.fi/URN:NBN:fi:jyu-202308254775Use this for linking
Review status
Peer reviewed
ISSN
2469-9985
DOI
https://doi.org/10.1103/PhysRevC.107.064312
Language
English
Published in
Physical Review C
Citation
- Kokkonen, H., Auranen, K., Uusitalo, J., Eeckhaudt, S., Grahn, T., Greenlees, P. T., Jones, P., Julin, R., Juutinen, S., Leino, M., Leppänen, A.-P., Nyman, M., Pakarinen, J., Rahkila, P., Sarén, J., Scholey, C., Sorri, J., & Venhart, M. (2023). Properties of the new α-decaying isotope 190At. Physical Review C, 107, Article 064312. https://doi.org/10.1103/PhysRevC.107.064312
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Funder(s)
Research Council of Finland
Research Council of Finland
Research Council of Finland
Funding program(s)
Academy Research Fellow, AoF
Postdoctoral Researcher, AoF
Research costs of Academy Research Fellow, AoF
Akatemiatutkija, SA
Tutkijatohtori, SA
Akatemiatutkijan tutkimuskulut, SA
Additional information about funding
This work was supported by the Academy of Finland under the Contracts No. 323710, No. 347154, and No. 353786 (Personal research projects, K.A.). The contribution of M.V. was supported by the Slovak Research and Development Agency under Contract No. APVV-20-0532 and Slovak grant agency VEGA (Contract No. 2/0067/21).
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