User talk:Mikollee

Thermal neutron operation reactor is reactive once it is "fully charged with uranium, therefore, a reactor may be considered to have a certain basic reactivity, which may be called the "built-in reactivity," sufficient to offset the self-induced reactivity changes as they occur." By having mass of uranium into the core to achieve the critical state. This effect produces more rapid reactivity from the formation after fission and fuel elements that cross-section full of thermal neutrons. The outcome process of “these materials are known as “poisons,” of which xenon most important. The isotope of interest is the decay produce by uranium 135. It has a capture cross-section from the thermal neutrons greater than any other known nucleus.