First trap-assisted decay spectroscopy of the 81Ge ground state
Delafosse, C., Goasduff, A., Kankainen, A., Verney, D., Al Ayoubi, L., Beliuskina, O., Cañete, L., Eronen, T., de Groote, R. P., Hukkanen, M., Ibrahim, F., Illana, A., Jaries, A., Lalanne, L., Moore, I. D., Nesterenko, D., Penttilä, H., Rinta-Antila, S., de Roubin, A., . . . Tocabens, G. (2022). First trap-assisted decay spectroscopy of the 81Ge ground state. European Physical Journal A, 58(3), Article 51. https://doi.org/10.1140/epja/s10050-022-00698-7
Published inEuropean Physical Journal A
DisciplineKiihdytinlaboratorioResurssiviisausyhteisöAccelerator LaboratorySchool of Resource Wisdom
© The Author(s) 2022
The β-delayed γ spectroscopy of 81As has been performed using a purified beam of 81Ge (9/2+) ground state at the Ion Guide Isotope Separator On-Line facility (IGISOL). The 81Ge+ ions were produced using proton-induced fission of 232Th and selected with the double Penning trap JYFLTRAP for the post-trap decay spectroscopy measurements. The low-spin (1/2+) isomeric-state ions 81mGe+ were not observed in the fission products. The intrinsic half-life of the 81Ge ground state has been determined as T1/2=6.4(2) s, which is significantly shorter than the literature value. A new level scheme of 81As has been built and is compared to shell-model calculations.
ISSN Search the Publication Forum1434-6001
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Related funder(s)Academy of Finland; European Commission
Funding program(s)Research post as Academy Research Fellow, AoF; Research costs of Academy Research Fellow, AoF
The content of the publication reflects only the author’s view. The funder is not responsible for any use that may be made of the information it contains.
Additional information about fundingThe authors acknowledge support from the European Union Seventh Framework Programme through ENSAR, Contract No. 262010. This project has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No. 771036 (ERC CoG MAIDEN). R.P.D.G. has received funding from the European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement No 844829. A.K. acknowledges the support from the Academy of Finland under Grant No. 275389 and 312544, and T.E. under Grant No. 295207 and 306980. R.T. acknowledges “P2IO LabEx (ANR-10-LABX-0038)” in the framework “Investissements d’Avenir” (ANR-11-IDEX-0003-01) managed by the Agence Nationale de la Recherche (ANR), France. ...
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