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Reference, Questions and Help => Nuke Q&A => Definitions => Topic started by: Rennhack on Nov 25, 2005, 02:44

Title: Shutdown margin
Post by: Rennhack on Nov 25, 2005, 02:44

The instantaneous amount of reactivity by which the reactor is subcritical or would be subcritical from its present condition assuming all full-length rod cluster assemblies (shutdown and control) are fully inserted except for the single rod cluster assembly of highest reactivity worth that is assumed to be fully withdrawn.