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DOE OSTI · 2589610

Material Control & Accounting Modeling Developments for a Generic TRISO Fuel Fabrication Facility

Pulido, Ramon J. M. [Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)] (ORCID:0009000912396720)·Rivas, Tania N. [Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)] (ORCID:000000033346674X)·Shoman, Nathan [Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)] (ORCID:0000000208704534)
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Abstract

The Material Protection, Accounting, and Control Technologies (MPACT) program utilizes modeling and simulation to assess Material Control and Accountability (MC&A) concerns for a variety of nuclear facilities. The Sandia National Laboratories (SNL)-developed Fissile Facility Flow Modeler (F3M) and the Material Accountancy Performance Indicator Toolkit (MAPIT) have historically provided MPACT with the capability to analyze MC&A approaches for nuclear facilities to determine that these facilities meet regulatory requirements. In FY25, improvements on the application of the F3M and MAPIT tools to simulate a generic TRi-structural ISOtropic (TRISO) fuel fabrication facility were successfully completed. The generic TRISO fuel fabrication F3M model captures the entire TRISO fuel fabrication process and is adaptable to any final TRISO fuel form, including spherical pebbles and cylindrical compacts loaded into graphite prismatic blocks. Comprehensive F3M/MAPIT functionality for the generic TRISO fuel fabrication model has been demonstrated. This modeling framework can be applied to support the U.S. Department of Energy and domestic nuclear industry stakeholders in developing MC&A approaches for advanced fuel fabrication facilities via statistical tests that demonstrate compliance to regulatory requirements.

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97 MATHEMATICS AND COMPUTING98 NUCLEAR DISARMAMENT, SAFEGUARDS, AND PHYSICAL PROTECTION

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Pulido, Ramon J. M. [Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)] (ORCID:0009000912396720), Rivas, Tania N. [Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)] (ORCID:000000033346674X), Shoman, Nathan [Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)] (ORCID:0000000208704534). 2025-09-01. Material Control & Accounting Modeling Developments for a Generic TRISO Fuel Fabrication Facility. https://doi.org/10.2172/2589610

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