Interpretation of Local Flux Measurements in Subcritical Systems and Reactivity Determination

Figure 6

Evolution of the local flux following a source pulse in a subcritical system (𝑘_eff=0.98) for two detectors, at 𝑥₀=0.9L (a, c, and e) and at 𝑥₀=5.3L (b, d, and f), adopting different formulations of the point kinetic model. Solid line: reference; dashed line: point kinetics.

(a) cpk, detector at 0.9L

(b) cpk, detector at 5.3L

(c) gpk, detector at 0.9L

(d) gpk, detector at 5.3L

(e) lpk, detector at 0.9L

(f) lpk, detector at 5.3L