Abstract

A process monitor is introduced that exploits semipermeable membranes for selective, online determination of aqueous tritium activity. Results from laboratory studies and an in-plant application to a nuclear-fuel-dissolver off-gas processing environment are presented. Under slowly changing tritium concentrations the accuracy is near 2%. Potential uses of the monitor in low-level operating environments are discussed.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>

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