Effect of changing the neutron moderator in a thermal subcritical nuclear reactor; Applied Radiation and Isotopes; Vol. 188

Effect of changing the neutron moderator in a thermal subcritical nuclear reactor; Applied Radiation and Isotopes; Vol. 188

Detalhes bibliográficos
Parent link:Applied Radiation and Isotopes
Vol. 188.— 2022.— [110395, 8 p.]
Autor Corporativo: Национальный исследовательский Томский политехнический университет Инженерная школа ядерных технологий Отделение ядерно-топливного цикла
Outros Autores: Vega-Carrillo H. R. Hector Rene, Garcia-Reyna M. G. Mayra Guadalupe, Marquez-Mata C. A. Claudia Angelica, Vazquez-Banuelos J. Joel, Campillo-Rivera G. E. Guillermo Eduardo, Bedenko S. V. Sergey Vladimirovich
Resumo:Title screen
Subcritical thermal nuclear reactor is the combination of nuclear fuel, moderator and external neutron source. Nevertheless, the amount of neutrons increases through nuclear fissions in the 235U in the fuel, the absorption and leakage of neutrons maintain the subcriticality condition. There are several subcritical reactors with different features and purposes. The open tank subcritical reactor Nuclear Chicago model 9000 is the heterogeneous combination of natural uranium, in hexagonal lattice, and light water, acting as moderator and reflector of neutrons, that uses a239PuBe neutron source. Worldwide there are several of these reactors mainly used in education, where due to the contact with water the Al tubes have corrosion. A possible solution is to use polyethylene as moderator. Aiming to evaluate the effect of changing the moderator, in this work Monte Carlo methods were used to model the reactor with polyethylene and water as moderators increasing the fuel load. For each model were estimated the keff and the μ parameters, and for Case 10a model was calculated the power, the Ambient dose equivalent and the fluence, of neutrons and γ-rays at five sites outside the reactor.
Режим доступа: по договору с организацией-держателем ресурса
Idioma:inglês
Publicado em: 2022
Assuntos:
электронный ресурс
труды учёных ТПУ
subcritical reactor
nuclear chicago 9000
Monte Carlo
neutron fluence
ambient dose equivalent
подкритические реакторы
метод Монте-Карло
флюенсы
амбиентный эквивалент дозы
Acesso em linha:https://doi.org/10.1016/j.apradiso.2022.110395
Formato: Recurso Electrónico Capítulo de Livro
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=668429

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