DIFFERENTIATING BETWEEN NORMAL AND ABNORMAL SITUATIONS WITH SOLUTION MONITORING SYSTEMS

Solution monitoring is thought to have a potential role in verifying that a facility is operating in a way declared by the operator. In this context it is important that ‘normal’ operational excursions can be differentiated from those that might be of interest to an inspector, in a straightforward manner. Model-based reasoning can contribute to this goal. Simulated data pertaining to two situations, post plutonium separation, is examined to demonstrate how model- based reasoning can discriminate between various explanations.