Determination of²³⁵U in highly enriched reactor fuel sticks

Abstract

Measurement of uranium in highly enriched reactor fuel sticks has been achieved by elaboration of the method of Amiel. Calibration of the method was achieved by three methods: comparison of dissolved sample with aqueous standard, comparison of sample, with handcrafted standard stick, and the extrapolated-aliquot procedure. Precision and accuracy of<0.5% relative are achieved in<2 min measurement time on a production basis, Precisions of<0.1% relative are achieved in replicate measurements.