The reactivityMeasure of the deviation of a reactor from critical (self-su... of a reactorSystem used to initiate, maintain and control a fission chai... – a measure for the deviation of the chain reactionSelf-perpetuating reaction. In a fission chain reaction, a f... rate from the stable state of equilibrium – depends upon a number of operating parameters, in a boiling water reactorNuclear reactor with water as a coolant and as a moderator, ..., among others, on the steam bubble contents in the coolantAny substance used to remove the heat in a nuclear reactor. ... in the corePart of the nuclear reactor where the fission chain reaction... zone. In the case of an increase in the chain reactionSelf-perpetuating reaction. In a fission chain reaction, a f... rate and the resulting power and temperature increase, a negative steam bubble coefficient has the effect that the power is automatically limited by the growing steam bubble contents and thus declines. In the German licensing procedureThe license for the construction and operation of a nuclear ... it must be verified that the steam bubble coefficient is always negative. In the Russian RBMKLatin transcription of a Russian reactor type designation: (... reactorSystem used to initiate, maintain and control a fission chai... type the steam bubble coefficient is positive; therefore, a power and temperature increase causes an increasingly faster chain reactionSelf-perpetuating reaction. In a fission chain reaction, a f... rate, entailing further power and temperature increases, if they are not limited by other measures. This effect was one of the physical causes for the reactorSystem used to initiate, maintain and control a fission chai... accidentUnplanned sequence of events which may result in an effectiv... in ChernobylAt the Chernobyl location, 130 km north-west of Kiev, four r....
Evolution of reactorSystem used to initiate, maintain and control a fission chai... power under certain circum-stances at positive and negative steam bubble coefficients