Research Article

Conceptual Study on Recriticality Prevention Core Having Duplex Pellets with Neutron Absorber in Outer Core in a Fast Reactor

Table 3

Results of compaction reactivity and nuclear characteristics of normal core and core having Duplex pellets with neutron absorber.

ItemNormal core without Duplex pelletsCore having Duplex pellets with neutron absorber in the outer core fuel

Compaction reactivity(%Δρ)3.9-1.7
Doppler reactivity
Void reactivity (%Δρ)1.61.7
Breeding ratio1.171.21
Burnup reactivity