Production of Sn and Sb isotopes in high-energy neutron-induced fission of natU
Mattera, A., Pomp, S., Lantz, M., Rakopoulos, V., Solders, A., Al-Adili, A., Penttilä, H., Moore, I., Rinta-Antila, S., Eronen, T., Kankainen, A., Pohjalainen, I., Gorelov, D., Canete, L., Nesterenko, D., Vilén, M., & Äystö, J. (2018). Production of Sn and Sb isotopes in high-energy neutron-induced fission of natU. European Physical Journal A, 54(3), Article 33. https://doi.org/10.1140/epja/i2018-12462-1
Julkaistu sarjassa
European Physical Journal APäivämäärä
2018Tekijänoikeudet
© the Authors, 2018. This is an open access article distributed under the terms of the Creative Commons License.
The first systematic measurement of neutron-induced fission yields has been performed at the upgraded IGISOL-4 facility at the University of Jyväskylä, Finland. The fission products from high-energy neutron-induced fission of nat U were stopped in a gas cell filled with helium buffer gas, and were online separated with a dipole magnet. The isobars, with masses in the range A = 128-133 , were transported to a tape-implantation station and identified using γ -spectroscopy. We report here the relative cumulative isotopic yields of tin (Z = 50) and the relative independent isotopic yields of antimony (Z = 51). Isomeric yield ratios were also obtained for five nuclides. The yields of tin show a staggered behaviour around A = 131 , not observed in the ENDF/B-VII.1 evaluation. The yields of antimony also contradict the trend from the evaluation, but are in agreement with a calculation performed using the GEF model that shows the yield increasing with mass in the range A = 128-133.
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https://converis.jyu.fi/converis/portal/detail/Publication/27932781
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Euroopan komissio; Suomen AkatemiaRahoitusohjelmat(t)
EU:n 7. puiteohjelma (FP7); Akatemiatutkija, SA
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This work was supported by the European Commission within the Seventh Framework Programme through Fission-2013-CHANDA (project No. 605203), by the Swedish Radiation Safety Authority (SSM), by the Swedish Nuclear Fuel and Waste Management Co. (SKB), and by the Academy of Finland under the Finnish Centre of Excellence Programme 2012-2017 (Nuclear and Accelerator Based Physics Research at JYFL). AK ...
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