https://doi.org/10.1140/epja/s10050-025-01743-x
Regular Article - Experimental Physics
Energy distributions and absolute yields of the long-range alpha particles and the tritons emitted in thermal neutron induced ternary fission of 235U
1
State Key Laboratory of Nuclear Physics and Technology, Institute of Heavy Ion Physics, School of Physics, Peking University, 100871, Beijing, China
2
National Key Laboratory of Intense Pulsed Radiation Simulation and Effect, Northwest Institute of Nuclear Technology, 710024, Xi’an, China
3
Frank Laboratory of Neutron Physics, Joint Institute for Nuclear Research, 141980, Dubna, Russia
4
Nuclear Research Centre, National University of Mongolia, Ulaanbaatar, Mongolia
5
The Institute of Nuclear Physics, Ministry of Energy of the Republic of Kazakhstan, 050032, Almaty, Kazakhstan
Received:
1
August
2025
Accepted:
5
November
2025
Published online:
24
November
2025
The energy distributions and the absolute yields of the long-range alpha particles and the tritons emitted in the thermal neutron induced ternary fission of 235U were measured using a twin-gridded ionization chamber and a highly pure thermal neutron beam of the Xi’an pulsed reactor. The mean energy and FWHM of the long-range alpha particles are (15.8 ± 0.3) MeV and (9.5 ± 0.3) MeV, respectively. The mean energy and FWHM of the tritons are (8.4 ± 0.3) MeV and (6.9 ± 0.4) MeV, respectively. The absolute yields of the long-range alpha particles and the tritons are (1.74 ± 0.05) × 10−3 and (1.21 ± 0.07) × 10−4, respectively. These results are discussed and compared with the data from previous measurements.
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.
