An Uniform Formula of Neutron Multiplication Calculation from Sub-Criticality to Prompt-Criticality with Step Change of Reactivity

CAI Zhang-sheng; GUI Xue-wen; YU Lei

Apr. 2006

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Article Navigation > Nuclear Power Engineering > 2006 > 27(2): 14-16,25

CAI Zhang-sheng, GUI Xue-wen, YU Lei. An Uniform Formula of Neutron Multiplication Calculation from Sub-Criticality to Prompt-Criticality with Step Change of Reactivity[J]. Nuclear Power Engineering, 2006, 27(2): 14-16,25.

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An Uniform Formula of Neutron Multiplication Calculation from Sub-Criticality to Prompt-Criticality with Step Change of Reactivity

Naval University of Engineering, Wuhan, 430033, China

Received Date: 2004-11-23
Rev Recd Date: 2005-08-19

Available Online: 2025-07-29

Abstract

Abstract

An uniform formula of neutron multiplication calculation with step change of reactivity is derived from the point reactor kinetics equation.The model is applicable to calculate neutron multiplication in reactor sub-critical state,delay-critical state and prompt-critical state.The results show that the uniform formula can be used in quantitative analysis and calculation with a high operational precision.
- Neutron multiplication,
- Neutron dynamics,
- Reactor safety