Assertion: decay's neutron | /r/CapableOf | initiate fission
Facets:
Source sentences:
text: This reduces the chance that the neutrons are captured by U-235 atoms and initiate fission, thus reducing the reactor's power output and placing an inherent upper limit on the temperature of the fuel.
text: Fertile materials need a fast moving neutron to initiate fission while fissile materials need a slow moving neutron for fission.