Abstract
The article discusses the relationship between the calculated reactivity ρ = 1 – 1/keff obtained from steady-state calculations and its measured analog. In VVER reactors, the measured reactivity is determined from the readings of a reactivity meter that processes IC current using the inverse point kinetics equation. In the article, a relation is established between the reactivity obtained from steady-state calculations and readings of a reactivity meter using the solutions of adjoint problems. By examples of measurements of the efficiency of emergency rods in VVER reactors, it is shown that the approach considered in the article is useful.
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