prompt fission मीनिंग इन हिंदी

After prompt fission neutron emission the residual fragments are still neutron rich and undergo a beta decay chain.
The total " prompt fission " energy amounts to about 181 MeV, or ~ 89 % of the total energy which is eventually released by fission over time.
However, without addition of a neutron poison or active neutron-absorber, " decreases " in fission rate are limited in speed, because even if the reactor is taken deeply subcritical to stop prompt fission neutron production, delayed neutrons are produced after ordinary beta decay of fission products already in place, and this decay-production of neutrons cannot be changed.