Molten fuel nuclear reactor with neutron reflecting coolant
摘要
說(shuō)明書
In contrast, as MSR system 100 is a breed-and-burn reactor, it may be desired to dynamically control breed rate at various points over the lifecycle of the reactor. For example, early in the reactor's lifecycle, a high breed rate may be desired to increase the availability of fissile material in reactor core section 106. The reflectivity characteristics of dynamic neutron reflector 110 may therefore be adjusted to provide increased reflection of fast neutrons into reactor core section 106 to breed more fertile material into fissile fuel. As more fast neutrons are reflected into reactor core section 106 over time, the fast neutrons may breed fertile material into fissile material until a desired concentration of fissile material has been reached. Later in the reactor's lifecycle, it may be desirable to increase burnup to provide increased power through increased burnup. The reflectivity characteristics of dynamic neutron reflector assembly 110 may therefore be adjusted to increase moderation of fast neutrons into thermal neutrons to maintain the desired burn rate.
