EPJ Web Conf.
Volume 239, 2020ND 2019: International Conference on Nuclear Data for Science and Technology
|Number of page(s)||4|
|Section||Fission Experiment and Theory|
|Published online||30 September 2020|
Experimental estimation of the “scission” neutron yield in the thermal neutron induced fission of 233U and 235U
1 B.P. Konstantinov Petersburg Nuclear Physics Institute of NRC ”Kurchatov Institute”, 188300, Gatchina, Leningrad district, Russia
2 V.G. Khlopin Radium Institute, St. Petersburg, 194021, Russia
* e-mail: firstname.lastname@example.org
Published online: 30 September 2020
The analysis of angular and energy distributions of prompt neutrons from the thermal neutron induced fission of 233U and 235U measured recently in the WWR-M research reactor (Gatchina, Russia) have been performed. The yield of “scission” neutrons has been estimated by comparing the measured distributions with calculations within the model of emission of neutrons from completely accelerated fragments. Besides taking into account “scission” neutrons, for the best description of measured angular and energy distributions of fission neutrons, the calculation should be performed under the assumption that neutrons with a higher (7-9%) probability are emitted along the fission axis in the center-of-mass system of fission fragments.
© The Authors, published by EDP Sciences, 2020
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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