ULTRASONIC ARRAY TECHNIQUE FOR THE INSPECTION OF
COPPER LINED CANISTERS FOR NUCLEAR WASTE FUEL
7th European Conference on Non-destructive Testing,
Copenhagen, Denmark, 26-29 May, 1998
Ultrasonic array technique for assessing the integrity of the
circumferential electron beam weld between the lid
and walls of copper canisters is presented in the paper.
The results of laboratory verification of the performance
of the ultrasonic array system on real canister samples are presented.
A method for suppression of grain noise
scattered from the internal copper structure based on digital filtering
B-scan images is verified in this application.
Postscript, 871K ;
compressed (gz), 181K