1. These are materials that sustain an explosive fast nuclear fission chain reaction . 2. However, it is not known if any of this results from fission chain reactions . 3. In nuclear engineering, "'fissile material "'is material capable of sustaining a nuclear fission chain reaction . 4. The insertion of a single blade was sufficient to shut down the fission chain reaction . 5. Producing a fission chain reaction in natural uranium fuel was found to be far from trivial. 6. The nuclear fission chain reaction became self-sustaining and began to emit intense gamma and neutron radiation. 7. Fission chain reactions occur because of interactions between neutrons and fissile isotopes ( such as 235 U ).8. Unlike the predominant isotope uranium-238, it is fissile, i . e ., it can sustain a fission chain reaction . 9. However, if a sufficient quantity of uranium-235 could be isolated, it would allow for a fast neutron fission chain reaction . 10. In addition to laser enrichment, the university carried out a test on neutron generator that can also trigger the fission chain reaction .
