Development of Ultrasonic Transducer with High Resistance to Temperature and Radiation

摘要

Ordinary ultrasonic transducers cannot be used to inspect equipment at a high radiation facility such as vitrification facility or fusion reactor. IHI has developed an ultrasonic transducer with high resistance to temperature and radiation and confirmed the radiation tolerance up to 10 MGy. IHI has applied the ultrasonic transducer to lid welding inspection of vitrification packages, and obtained good results such as clear detection of an artificial 0.5mm diameter hole penetrating the stainless steel lid welding. This technology could be applied to ISI (In-Service Inspection ) of nuclear plants, ensuring safe operation of nuclear plants.