Examination of Core Components Removed from CANDU Reactors
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Abstract
Components in the core of a nuclear reactor degrade because the environment is severe. For example, in CANDU reactors the pressure tubes must contend with the effects of hot pressurised water and damage by a flux of fast neutrons. To evaluate any deterioration of components and determine the cause of the occasional failure, we have developed a wide range of remote handling techniques to examine radioactive materials. As well as pressure tubes, we have examined calandria tubes, garter springs, end fittings, liquid zone control units and flu detectors. The results from these examinations have produced solutions to problems and continually provide information to help understand the processes that may limit, the lifetime of a component.
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