b'Figure 1. A listing fuel behaviors and properties in order of research priority based upon the PIRT analysis done by the accelerated testing team in AFC. These priorities are being used to guide model development within BISON and post irradiation examination of FAST test specimens. Future experiment designs will be guided by those results and these property relationships.analysis of key fuel phenomenahigh temperature gas cooled fast and properties (Figure 1). Thereactor design (Figure 3), Energy PIRT was then used to outline aMultiplier Module (EM2). The LDRD modernized approach to the quali- is testing accelerated fuel irradiation fication presented by Crawford etof ceramic fuels as well as multiple al. [1] where stages 1-3 could befuel designs (Figure 4). UC fuel is reduced from a 15-20 year processalso the subject of the Accelerated to 5-8 years (Figure 2). This PIRTFuel Qualification (AFQ) effort that and methodology for qualificationGA has with Oak Ridge National is the subject of a paper submittedLaboratory (ORNL) and a semi-to Nuclear Technology. integral irradiation test, such as withFAST is being utilized by a Labora- FAST, is a necessary component of tory Directed Research and Develop- qualification.ment (LDRD) project that is part- References:nering with General Atomics (GA)[1.] Crawford, D.C., et al., An approach and to irradiated uranium carbideto fuel development and qualifica-(UC) fuel. GA is intending UC fueltion. Journal of Nuclear Materials, compacts to be the used in their2007. 371(1): p. 232-242.128 2020|AFC ACCOMPLISHMENTS'