Gamma spectrometry for quantification of trace amounts of actinides in concentrated ammonium nitrate solution

Mirashi, N. N.; Aggarwal, Suresh K.
September 2009
Journal of Radioanalytical & Nuclear Chemistry;Sep2009, Vol. 281 Issue 3, p457
Academic Journal
A concentrated ammonium nitrate solution (80 g L−1) generated during reprocessing of nuclear fuels was analysed for determining trace amounts of actinides present prior to its reuse or disposal. A gamma spectrometric method using HPGe detector was developed for the assay of uranium (U), plutonium (Pu) and americium (Am) using a suitable calibration sample. The results obtained were validated by liquid scintillation counting. The presence of significant amounts of plutonium necessitated repeated purification of ammonium nitrate before its reuse.


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