Year
1971
Abstract
The concept of using isotopic correlations as a means of safeguards verification and confirmation has evolved over a number of years. Historical applications at the Hanford Project have included their use in cross-checking analytical measurements made on spent fuel samples and in checking calculated values for spent fuel compositions and exposures. In recent years, further development of the concept has been sponsored by the Atomic Energy Commission's Office of Safeguards and Materials Management and by the U. S. Arms Control and Disarmament Agency (ACDA). Research sponsored by ACDA on isotopic correlations is included under the programmatic title of Minor Isotopes Safeguards Techniques which is denoted by the acronym MIST. The MIST program embodies the use of isotopic data for safeguards purposes at all parts of the fuel cycly. By contrast, the isotopic correlation techniques discussed in this report are concerned primarily with that part of the fuel cycle which extends from the end of fuel fabrication through the input stage of chemical processing.