  The present paper discuss a novel method of tagging and labeling of waste
casks, copper canisters, spent fuel containers, mercury containers, waste pack-
ages and other items. In particular, it is related to the development of new
long-term security identification tags/labels that can be applied to articles
for carrying information about the content, inventory tracking, prevention of
falsifi- cation and theft etc. It is suggested to use a unique combination of
radioisotopes with different predictable length of life, as a label of the
items. The possibil- ity to realize a multidimensional bar code symbology is
proposed as an option for a new labeling method. The results of the first tests
and evaluations of this are shown and discussed in the paper. The invention is
suitable for use in items assigned to long-term (hundreds of years) storing or
for final repositories. Alternative field of use includes fresh nuclear fuel
handling and shipment of goods.
