Properties of the new α-decaying isotope 190At
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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Physical Review CDate
2023Copyright
© 2023 American Physical Society
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.
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American Physical Society (APS)ISSN Search the Publication Forum
2469-9985Keywords
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https://converis.jyu.fi/converis/portal/detail/Publication/184077302
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Research Council of FinlandFunding program(s)
Academy Research Fellow, AoF; Postdoctoral Researcher, AoF; Research costs of Academy Research Fellow, AoFAdditional 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).License
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