https://doi.org/10.1140/epja/s10050-025-01643-0
Regular Article - Experimental Physics
Energy dependence of isomeric ratios for alpha-particle-induced reactions on natural platinum up to 50 MeV studied by simultaneous decay curve analysis
1
Nuclear Data Section, Division of Physical and Chemical Sciences, Department of Nuclear Sciences and Applications, International Atomic Energy Agency, 1400, Wien, Austria
2
Nishina Center for Accelerator-Based Science, RIKEN, 351-0198, Wako, Japan
3
Faculty of Science, Hokkaido University, 060-0810, Sapporo, Japan
4
Graduate School of Biomedical Science and Engineering, Hokkaido University, 060-8638, Sapporo, Japan
5
Global Center for Biomedical Science and Engineering, Faculty of Medicine, Hokkaido University, 060-8648, Sapporo, Japan
6
HUN-REN Institute for Nuclear Research (ATOMKI), 4026, Debrecen, Hungary
7
School of Engineering and Technology, National University of Mongolia, 14200, Ulaanbaatar, Mongolia
8
Graduate School of Science and Engineering, Saitama University, 338-8570, Saitama, Japan
Received:
5
May
2025
Accepted:
7
July
2025
Published online:
9
August
2025
The isomeric ratios and cross sections were measured up to 50 MeV for production of 198m,gAu, 197m,gHg, 195m,gHg and other Hg, Au and Pt radionuclides in irradiation of natural platinum by alpha-particles using the stacked-foil activation technique and offline gamma-ray spectrometry. The simultaneous decay curve analysis was applied to the emission rates of more than 40 gamma lines to directly derive the independent cross sections of all products without determining the cumulative cross sections. The measured cross sections and isomeric ratios were compared with those compiled in the EXFOR library and simulated by TALYS-2.0. We found that the natPt(
,x)198g+mAu, 197g+mHg and 195g+mHg cross sections are fairly reproduced by the simulation, while the simulation result requires adjustment of the spin cutoff parameter for better reproduction of the isomeric ratios.
Copyright comment Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2025
Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
