The reduced excess reactivity limits the possible size and speed of the power surge.
2.
SL-1 was constructed with a main central control rod that was capable of producing a very large excess reactivity if it were completely removed.
3.
Because the original fuel arrangement is optimum for a chain reaction and the natural uranium fuel has little excess reactivity, any significant deformation will stop the inter-fuel pellet fission reaction.
4.
The incident caused this design to be abandoned and future reactors to be designed so that a single control rod removal would not have the ability to produce the very large excess reactivity which was possible with this design.
5.
Control rod drives do not penetrate the IRV, as in the light water reactors of today, but are instead wholly enclosed within the IRV . Burnable neutron absorbers within the fuel and control rod inventory are used to suppress hot excess reactivity.
मोबाइल