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[en] Current RSWG Activities: • Work during the past year has turned to focus primarily on development of an integrated framework for assessing risk and safety issues in Generation IV systems; • Methodology is called the Generation IV Integrated Safety Assessment Method (ISAM).
[en] Workshop Outcomes: • Representatives of all six SSCs gained a much fuller understanding of the ISAM, its purposes, and its application. • Overall, all six SSC representatives expressed strong support for ISAM and endorsed its value and practicality: – Clear consensus to begin using it on a trial basis; – At least two development teams are already doing so. • The only significant concern expressed by the SSCs related to resource requirements and expertise needed to apply the ISAM. • Draft ISAM document includes comments and perspectives discussed at the workshop.
[en] Purposes of Integrated Safety Assessment Methodology (ISAM) and its purpose: • Commensurate with design maturity, yields a complete and detailed understanding of relevant risk and safety issues. • Within a given concept or design: – guides the design process based on a detailed understanding of risk and safety; – helps identify areas for additional research and data collection. • Promotes understanding of differences between concepts and designs based on risk and safety issues; • Allow evaluation of a concept or design relative to various safety metrics or “figures of merit”; • Support licensing and regulatory processes.
[en] Qualitative Safety Features Review (QSR): • The Qualitative Safety Features Review is a “Checklist” based on principle of defense in depth. • QSR provides a systematic means of ensuring and documenting that the evolving Generation IV system’s design incorporates the desirable safety-related attributes and characteristics that are identified and discussed in the RSWG’s report. • Using a structured template, the QSR: – Provides a useful preparatory step to shape designers’ approaches to their work to help ensure that safety truly is “built in, not added-onto” since the early phases of the design of Generation IV systems. – Helps designer qualitatively assess safety-related strengths and weaknesses of the evolving design. – From earliest phases of design, helps influence design selecting or discarding options among the provision important to safety.