CX-019939: Pre-Application Licensing Report on the Development of a Mechanistic Source Term Methodology for the Kairos Power Fluoride-Cooled High-Temperature Reactor (KP-FHR) – Kairos Power, LLC

Kairos Power, LLC, in collaboration with Brigham Young University (BYU), proposes to develop and document the methodological approach for establishing the mechanistic source term (MST) for the KP-FHR. This methodology directly supports implementation of the fundamental KP-FHR safety strategy which relies on fission product retention within the fuel and within the molten salt coolant with little or no reliance on other safety features and without the need for active safety systems. Laboratory experiments will be performed in Flibe to address knowledge gaps. The design-specific MST will be documented in a licensing report for NRC review and safety evaluation.