Ultrasonic identification and certification of containers for hazardous materials

摘要

A container (122) for nuclear and / or hazardous materials, said container (122) comprising: a container body (306) made of metal; And a lid 308 made of the same metal as the container body 306. The lid 308 and the container body 306 are configured to weld together to form a sealed container. The lid 308 includes a plurality of scanable elements 1006 that are spatially distributed on the lid 308 (e.g., equally spaced about the circumference 1004) ), And is scanned by the first ultrasonic scanner 802. One or more of the scanable elements 1006 are inclined surface elements 702 and each inclined surface element 702 is inclined with respect to the axis of the lid 306. In use, the first scan signal is generated by scanning the scanable elements 1006 with the first ultrasonic scanner 802, and the first scan signal is generated by determining which of the scanable elements is a tilted surface element And includes an identification code. A method for identifying and authenticating a container, wherein a third (identification / authentication) signal is derived from an intersection of a first signal and a second signal, obtained by scanning a signature surface element in a welded area 1202 of the sealed container This is also disclosed later.