Year
1978
Abstract
The aim of this paper is to provide a general review of a technique available for sealing, marking or otherwise iden- tifying material in such a way that its recognition and guarantee of integrity are unequivocally ensured for most of the fuel cycle. This technique, studied in the NOT Laborato- ries of the Joint Research Centre ( Ispra), is based on the general principle of ultrasonic testing of materials using fully .automatic equipment now produced on an industrial scale by the Nukem firm in Germany, This equipment and the speci- fical designed seals would enable the Safeguards Authority to use this technique for : — unique on-the— spot identification by the inspector or by the plant operator, — remote controlled identification, — continuous interrogation in. timely detection.