b'The RB MiniFuel platform enables high-temperature irradiation testing with rapid burnup accumulation, which will be key for separate-effects fuel performance experiments under reactor-relevant conditions.of subcapsules, centering thimbles,[2.]Gorton, J.P., Gallagher, R.C., and end springs were loaded intoWallen, Z.G., Le Coq, A.G., the target (Figure 4). Another orbitalHelmreich, G.W., Petrie, C.M., weld was performed in the desiredLinton, K.D., Latta, R. and fill gas environment to seal theGerczak, T.J., 2023. Simulation target. Leak tests were performed atof a TRISO MiniFuel irradiation each seal welding step, and a finalexperiment with data-informed non-destructive radiograph wasuncertainty quantification. taken to ensure sufficient weld pene- Nuclear Engineering and tration. The targets were then loadedDesign, 404, p.112177.into the Al MiniFuel basket in their[3.]Gorton, J.P., Wallen, Z.G. and desired radial and axial positions,Petrie, C.M., 2021. Modifications with Al dummy targets filling theto MiniFuel Vehicle Needed to remaining open positions (Figure 5).Enable Higher Temperature The entire irradiation vehicle wasUO2 Irradiation Capabilities lowered into an RB facility on July(Summarizing Issue Report) 5, 2023, prior to the start of HFIRs(No. ORNL/SPR-2021/2096). Oak 502nd irradiation cycle, whichRidge National Lab (ORNL), Oak commenced on July 18, 2023. Ridge, TN (United States).References:[1.]Petrie, C.M., Burns, J.R., Raftery, A.M., Nelson, A.T. and Terrani, K.A., 2019. Separate effects irradiation testing of miniature fuel specimens. Journal of Nuclear Materials, 526, p.151783.2023|AFC ACCOMPLISHMENTS 49'