Safety Assurance Framework for Nuclear Digital Instrumentation and Control Software

Zhu, Sophia [Idaho National Laboratory] (ORCID:0009000000448188); Kim, Jisuk [Idaho National Laboratory] (ORCID:0000000252124799)

DOE OSTI · 3363327

Safety Assurance Framework for Nuclear Digital Instrumentation and Control Software

Zhu, Sophia [Idaho National Laboratory] (ORCID:0009000000448188)·Kim, Jisuk [Idaho National Laboratory] (ORCID:0000000252124799)

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Abstract

Software in digital instrumentation and control (D&C) systems poses unique challenges for the safety assurance of nuclear power plants. Through a literature survey of 21 sources, we analyzed various claims, arguments, and evidence used in safety assurance cases across industries. These were organized into a Goal Structuring Notation (GSN) safety assurance case framework to organize and visualize the various arguments for DI&C safety. We developed a classification for the levels of the framework, which can be used in other safety assurance cases to improve clarity.

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46 - INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY digital instrumentation and control Goal Structuring Notation machine learning assurance nuclear power plant safety assurance case software assurance

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Zhu, Sophia [Idaho National Laboratory] (ORCID:0009000000448188), Kim, Jisuk [Idaho National Laboratory] (ORCID:0000000252124799). 2025-08-12. Safety Assurance Framework for Nuclear Digital Instrumentation and Control Software. https://www.osti.gov/biblio/3363327

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