Advanced inspection of CANDU steam generator tubing structures using transient Eddy Current

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This project will focus on challenges in CANDU nuclear reactor steam generator (SG) inspection and maintenance that are not presently addressed by conventional inspection technologies. The advancement of transient eddy current (TEC) technology will target inspection issues associated with support plate degradation and fouling, which lead to tube corrosion and loss of SG efficiency. Inspection and monitoring of these conditions can be integrated with preventive maintenance programs, thereby enhancing station life management processes. Extension of the transient eddy current technique to other in-reactor tubular structures, such as fuel channel pressure tube to calandria tube gap and liquid injection shutdown system (LISS) nozzle proximity to calandria tube, will also be examined.