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In-core flux measurement is critical for monitoring and power regulation of a large core nuclear reactor. Self Powered Neutron Detectors (SPNDs) are used for measuring the neutron flux in a nuclear reactor. In this paper we propose an online method for SPND gross error detection, identification and estimation. The method uses linear models which are extracted from data and which adapt continuously...
The focus of this work is on clustering Self Powered Neutron Detectors (SPNDs) with different dynamic characteristics into smaller groups, with each group containing highly correlated SPNDs. In order to cluster the SPNDs correctly, we propose novel ways to compensate for the effect of different dynamic response characteristics. In particular, two types of SPNDs: (i) cobalt, which give a prompt response,...
Self Powered Neutron Detectors (SPNDs), which are widely used in a nuclear reactor for flux measurement, typically have different types of dynamics based on their emitter material: one delayed, second prompt and possibly nonlinear response characteristics. The measurement from the SPNDs hence need compensation to obtain the actual input flux. In this paper, we discuss the modeling of and input estimation...
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