Development and Application of Advanced Reactivity Measurement System

Comparing with traditional reactor control rod worth measurement methods, the  rapid dynamic rod worth measurement method requires a kind of reactivity measurement equipment with higher accuracy and performance to obtain and deal with the current signal from ex-core detectors, and the spatial effects during the test should be corrected by additional core neutronics calculation, therefore, in this research the Advanced Reactivity Measurement System(SMART) is developed including the advanced physics test computer(APTC) and the dynamic rod worth  measurement code (LIGHT), which can wholly support physics startup tests including the dynamic rod worth measurement test. In addition, a series of verification tests are performed for SMART, and it can be indicated that SMART is capable to complete all the physics startup tests, and the accuracy and performance can satisfy physics startup tests including the dynamic rod worth measurement test. Engineering application capability of SMART is also verified by successful application in 300MW nuclear power plants.