TH£ USE OF GAMMA SPECTROMETRY IN INTERNATIONAL SAFEGUABDS

The USAEC has used single channel ganma spectrometers for use in international safeguards inspections for approximately three years. The spectrometers have been used for qualitative and quantitative measure- ments for nondestructive analysis for inventory verification. The results of the measurements show that the instruments have provided use- ful quantitative data for material in forms such as: fuel plates, fuel plate cores, powders and plate type fuel elements; and qualitative data for material in forms such as: scrap, IX^-ThOj mixture and UFg-HF solution.