The Separation and Safeguards Performance Model (SSPM) is a versatile tool developed and maintained by Sandia National Laboratories to support various safeguards design and analysis activities. Typically, the SSPM has been used in systems-level analysis of notional facilities. However, the SSPMhas recently been (and will continue to be) leveraged in use cases that require higher fidelity and greater detail, such as in the Monochromatic Assays Yielding Enhanced Reliability (MAYER) project, which employs the SSPM as a surrogate facility for training a safeguards digital twin. One key update is that of measurement systems within the SSPM. Historically, the SSPM has used a multiplicative error model to simplify intricate and complex measurement systems to a single term. This presentation will discuss how added complexity in the measurement system is used to expand the utility of the SSPM of the SSPM in safeguards analysis and research.
Year
2024
Abstract