Explanation

materials that can be directly or indirectly transformation into fissile materials after neutron capture. In the field of nuclear fission, the typical fertile materials are 238U and 232Th, two materials that do not undergo fission after absorbing thermal neutrons, releasing nuclear energy. But after two attempts β After decay, they are converted into fissile nuclei 239Pu and 233U respectively (see uranium plutonium cycle and thorium uranium cycle). The former is the best fuel for fast neutron fission, and the latter is the best fuel for thermal neutron fission. In the field of nuclear fusion, tritium, a fusion fuel, has very little reserves in nature. It is produced after lithium absorbs neutrons (n, α) It is produced by reaction (see tritium-breeding materials). Lithium is a fertile materials, which is also traditionally called breeder materials.

Classification