EDN: XGBWHY
Authors & Affiliations
Piksaikin V.M., Gremyachkin D.E., Egorov A.S., Mitrofanov K.V., Mitrofanov V.F.
A.I. Leypunsky Institute for Physics and Power Engineering, Obninsk, Russia
Piksaikin V.M. – Leading Researcher, Cand. Sci. (Phys.-Math.).
Gremyachkin D.E. – Head of Department of Experimental Nuclear Physics, Cand. Sci. (Phys.-Math.).
Egorov A.S. – Senior Researcher.
Mitrofanov K.V. – Senior Researcher. Contacts: 1, pl. Bondarenko, Obninsk, Kaluga region, Russia, 249033. Tel.: +7 (484) 399-83-49; e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it..
Mitrofanov V.F. – Senior Researcher.
Abstract
The macroscopic section of the IAEA beta-delayed neutron reference database that was created by the IAEA Coordinated Research Project is continuously updated by the Nuclear Data Section of the IAEA to provide current and reliable aggregate delayed neutron data for an energy and other applications. After re-evaluation of microscopic delayed neutron data performed in the frame of the IAEA CRP project a value of reliable macroscopic experimental data increased markedly.
In this work presents the compilation of the new published delayed neutron data and upgrade data that are included in the IAEA compiled database on the relative abundances and half-lives of delayed neutrons, namely:
– compilation of the temporary data (the half-lives and the relative abundances) of delayed neutrons emitted from neutron-induced fission of 235U at energies ranging from 0.4 to 8 MeV;
– compilation of the average half-lives extracted from the above-measured data;
– updated (supplemented) existing macroscopic database on delayd neutron for 232Th, 236U, 238U, 237Np, 241Am.
Keywords
delayed neutron, total yield, half-live, relative abundances, precursor, 6 groups, 8 groups, database, macroscopic data, experimental data, compilation, isotops, IAEA
Article Text (PDF, in Russian)
References
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UDC 539.173.84
Problems of Atomic Science and Technology. Series: Nuclear and Reactor Constants, 2024, no. 1, 1:1
