Shutdown rod

Shutdown rods are used to tripFast shutdown of a nuclear reactor, generally by fast insert... the reactorSystem used to initiate, maintain and control a fission chai.... For this purpose it must be possible to insert them very quickly and they must have a sufficiently high negative reactivityMeasure of the deviation of a reactor from critical (self-su... to safely shutdown the reactorSystem used to initiate, maintain and control a fission chai.... (See control rodA rod- or plate-shaped arrangement to control the reactivity...)