fission process where the neutron production rate equals the neutron loss rate to absorption or leakage. A nuclear reactor is "critical" when it is operating.

A state in which a self-sustaining nuclear chain reaction is achieved.

The state of a mass of fissionable material when it is sustaining a chain reaction.

Condition of a nuclear reactor for being able to achieve a self-sustaining nuclear chain reaction at steady fission rate.

a term used to describe the state of a fission reaction when the number of neutrons released by fission is exactly balanced by the neutrons being absorbed and escaping. For example, reactor is said to be "critical" when it achieves a self-sustaining nuclear chain reaction, as it does when the reactor is operating.[] [ Click "BackButton" for previous location

The conditions in which a system is capable of sustaining a nuclear chain reaction.

Pertaining to a critical mass (the least amount) of fissionable material that can achieve self-sustaining nuclear chain reactions.

The state of a nuclear reactor when it reaches the stage of a self-sustaining chain reaction.

Condition of being able to sustain a nuclear chain reaction.

The degree of impact that a requirement, module, error, fault, failure, or other item has on the development or operation of a system. Syn: severity.

The criticality of a component, equipment, or system based on the consequence of Break-Down.