Technics of Sampling Gas by Storing in a Dry Container under Reactor Pool for Damage Detection of Spent Fuel
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Graphical Abstract
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Abstract
In the present article, several previous methods for damage detection of spent fuel assembly, as well as the existing limitations of these methods are reviewed. A new sampling system, including the working procedure and operating schedule, was developed in order to meet the practical demands and to solve the disadvantages mentioned. The measurement method for sampling and the criterion practical results provided evidence that, in this system, each operating process could successfully achieve a sample for a single certain spent fuel assembly with high precision. Moreover, all the operations were carried out under water, which made the radiation protection much easier.
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