aspects of nuclear material accounting. In particular, it requires that control limits be calculated for nuclear material … creation of a variance propagation model of the nuclear material accounting system, the validation of the model, the … addressed include: the mathematics of variance propagation, the structure of nuclear material accounting systems, sources of …

Analysis of the data obtained in one year of plutonium accounting at Los Alamos reveals significant complexity. Much of … accounting in the plant. We have been analyzing transaction data from fiscal year 1983 processing. This study involved 62 … understand the global features of the TA-55 accounting data. This project has underscored several of the system's complexities …

allocation, control and delivery of the usage of computer resources. Accounting also is weak, being generally limited to … reporting that a user used an amount of time on a process. A process accounting record is made only after the completion of a … presented with an attendant problem of accurate accounting for resources used. Processes can now run for days or months without …

Materials accounting for special nuclear material in fuel cycle facilities is implemented more efficiently by applying … methods are incorporated in the computer program DECANAL, which calculates sufficient statistics containing all accounting … aggregating and testing materials accounting data for timely detection of missing material. …

Good decision-making in materials accounting requires a valid calculation of control limits and detection sensitivity … (Materials Accounting VARIance Calculator) and PROFF (PROcessing and Fuel Facilities calculator) can efficiently select and … facility. These programs can also be used to analyze materials accounting systems. …