| Abstract Scope |
Materials irradiations in the High Flux Isotope Reactor (HFIR) have evolved significantly, reflecting advancements in both experimental design and analytical methodologies. This presentation will delve into the analytical techniques employed to estimate component temperatures and outline the methodologies utilized in the design of contemporary HFIR experiments. Most HFIR irradiation experiments predominantly rely on passive control mechanisms to regulate temperature. However, these passive control experiments often come with higher uncertainties in temperature regulation. In contrast, actively controlled methods involve continuous temperature monitoring and real-time adjustments of the insulating gas during irradiation to maintain temperature stability. Passive control significantly decreases complexity, reduces timelines, and minimizes costs to the experimental process. Due to the complexity of modern HFIR experiments, innovative approaches must be taken to successfully predict component temperatures in these passively controlled irradiations. A variety of HFIR materials irradiations, including liquid metal corrosion and SiC/SiC cladding bowing will be discussed, emphasizing the diverse results and insights gained. This exploration will discuss the implications of these advancements for future irradiations in HFIR, ultimately contributing to the ongoing dialogue surrounding reactor materials. |