Application of Control charts and isotope correlations to spent fuel measurements211 at FCF

摘要

The material control and accountancy system for the Fuel Conditioning Facility211u001e(FCF) initially uses calculated values for the mass flows of irradiated EBR-II 211u001edriver fuel to be processed in the electrorefiner. These calculated values are 211u001econtinually verified by measurements performed by the Analytical Laboratory (AL) 211u001eon samples from the fuel element chopper retained for each chopper batch. 211u001eMeasured values include U and Pu masses, U and Pu isotopic fractions, and burnup 211u001e(via La and Tc). When the measured data become available, it is necessary to 211u001edetermine if the measured and calculated data are consistent. This verification 211u001einvolves accessing two databases and performing standard statistical analyses to 211u001eproduce control charts for these measurements. These procedures can now be 211u001einvoked via a Web interface providing: a timely and efficient control of these 211u001emeasurements, a user-friendly interface, off-site remote access to the data, and 211u001ea convenient means of studying correlations among the data. This paper will 211u001epresent the architecture of the interface and a description of the control 211u001eprocedures, as well as examples of the control charts and correlations.