RERTR-12 Post-irradiation Examination Summary Report

Rice, Francine ; Williams, Walter ; Robinson, Adam ; Harp, Jason ; Meyer, Mitch ; Rabin, Barry

关键词: Fuel qualification;    Post-irradiation examination;    RERTR-12;   

DOI  :  10.2172/1173078
RP-ID  :  INL/EXT-14-33066
PID  :  OSTI ID: 1173078

学科分类：核能源与工程

美国|英语

来源: SciTech Connect

【 摘 要 】

The following report contains the results and conclusions for the post irradiation examinations performed on RERTR-12 Insertion 2 experiment plates. These exams include eddy-current testing to measure oxide growth; neutron radiography for evaluating the condition of the fuel prior to sectioning and determination of fuel relocation and geometry changes; gamma scanning to provide relative measurements for burnup and indication of fuel- and fission-product relocation; profilometry to measure dimensional changes of the fuel plate; analytical chemistry to benchmark the physics burnup calculations; metallography to examine the microstructural changes in the fuel, interlayer and cladding; and microhardness testing to determine the material-property changes of the fuel and cladding. These characterization activities are tailored specifically to define: ??? The mechanical response of fuel meat, cladding, and interlayers, including diffusion barrier integrity ??? Whether geometry is stable and predictable; that changes in channel gap do not compromise ability to cool fuel ??? That fuel performance is known and predictable ??? A limited set of physical properties that are important for the analysis of fuel burnup limits ??? Whether swelling is stable and predictable.