Source Terms for Light Water Reactors and Non-Light Water Reactors

Source term is the magnitude, physical/chemical form, and timing of radionuclides released from fuel, expressed as fractions of the total fission product inventory. It’s central to the defense-in-depth licensing framework for the nuclear reactor. Source terms for light water reactors (LWRs) were initially based on postulated worst-case meltdown scenarios. Then, improved understanding of severe accidents led to alternative, mechanistic source terms. Advanced non-light water reactor (non-LWR) designs are expected to use mechanistic, design-specific source terms, which required deep understanding of fuel performance, transport of radionuclides and bounding accident scenarios.Goal:Across all reactor types, the central objective of source term research is developing mechanistic, experimentally validated, uncertainty-quantified source terms that accurately reflect the physical and chemical behaviour of fission products in each unique reactor system. They support risk-informed, technology-inclusive regulation of both operating LWRs and advanced non-LWRs.Scope and information for Authors:We welcome focused contributions that advance research on source terms for LWRs and non-LWRs. Topics can include:• Mechanistic & Best-Estimate Source Term Development• Fission Product Chemistry & Transport• Accident-Tolerant Fuel (ATF) Source Terms• Spent Fuel Pool (SFP) Source Terms• Uncertainty Quantification (UQ)• Tristructural-isotropic (TRISO) Fuel Performance, Release and Graphite Dust & Plateout for high-temperature gas-cooled reactors (HTGR) Topic editors: JinHo Song, Terttaliisa Lind Source: https://www.frontiersin.org/research-topics/81044/source-terms-for-light-water-reactors-and-non-light-water-reactors