Abstract

This paper describes development work to obtain a product phase of 151Sm pure of any other radioactive species so that it can be determined in US Department of Energy high level liquid waste and low level solid waste by liquid scintillation b-spectroscopy. The technique provides separation from mCi/ml levels of 137Cs, Pu a- and 241Pu b-decay activity, and 90Sr/90Y activity. The separation technique is also demonstrated to be useful for the determination of 147Pm.

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