Improving Nuclear Safety of Fast Reactors by Slowing Down Fission Chain Reaction

Figure 12

Roots of the inverse-hour equation for FR with the neutron reflector-converter (—root corresponding to the asymptotic power excursion period).

(a) FR with the neutron reflector-converter

(b) FR with the neutron reflector-converter (the neutrons coming back from the reflector with lifetimes are united with the neutrons in the reactor core)

(c) Item “b” (plus the “zero prompt neutron lifetime” in the reactor core)