The following report contains the results and conclusions from post irradiation examinations performed on the fuel plates irradiated as part of the AFIP-7 experiment, the first test of base monolithic fuel in a fuel assembly consisting of curved, constrained fuel plates. These examinations include visual examination; eddy-current testing to measure oxide growth; profilometry to measure dimensional changes of the fuel plates; neutron radiography for evaluating fuel condition prior to sectioning; gamma scanning to provide relative measurements of burn-up and indication of fission-product relocation; analytical chemistry to benchmark the physics burn-up calculations; metallographic examination to identify microstructural changes in the fuel, interlayer and cladding; and blister threshold testing. These characterization activities were conducted to demonstrate that the fuel meets irradiation performance requirements for mechanical integrity, geometric stability, and stable and predictable behavior. Revision 1 being reviewed for share publicly.
