Analysis of Pellet-to-Pellet Data from Nuclear Reactor Fuel Rod Scanning Systems

摘要

The problem of analyzing a sequence of measured points from a nuclear reactor fuel rod scanning system to detect a pellet outside of specifications is examined in detail. A theory of calculating the expected values of the measured points is presented which can be applied to any system, with continuous scanning. Simple models are developed to accept or reject a fuel rod on the basis of the sequence of measured points. As an example, numerical results for optimizing various operating parame¬ters and determining the sensitivity of a light water reactor fuel pellet-to-pellet system using the theory and the models are discussed.