Improved safety fast reactor with "reservoir" for delayed neutrons generating

International Conference for Young Scientists, Specialists, and Postgraduates on Nuclear Reactor Physics 2016

Kulikov, G.G.^1 ; Apse, V.A.^1 ; Shmelev, A.N.^1 ; Kulikov, E.G.^1

National Research Nuclear University, MEPhI (Moscow Engineering Physics Institute), Kashirskoe highway, 31, Moscow, Russia^1

关键词: Atomic weights;    Delayed neutrons;    Internal cavities;    Kinetic behavior;    Neutron absorbers;    Neutron kinetics;    Neutron reflectors;    Thermal reactors;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/781/1/012009/pdf
DOI  :  10.1088/1742-6596/781/1/012009

来源: IOP

【 摘 要 】

The paper considers the possibility to improve safety of fast reactors by using weak neutron absorber with large atomic weight as a material for external neutron reflector and for internal cavity in the reactor core (the neutron "reservoir") where generation of some additional "delayed" neutron takes place. The effects produced by the external neutron reflector and the internal neutron "reservoir" on kinetic behavior of fast reactors are inter-compared. It is demonstrated that neutron kinetics of fast reactors with such external and internal zones becomes the quieter as compared with neutron kinetics of thermal reactors.