This study, lead by previous postdoctoral fellow Shanshan Tang in TRUE lab, shows that X-ray-induced Acoustic Computed Tomography (XACT) imaging can be used to non-destructively test and identify defects in concrete. For concrete structures, we conclude that XACT imaging allows multiscale imaging at depths ranging from centimeters to meters, with spatial resolutions from sub-millimeter to centimeters. XACT imaging also holds promise for single-side testing of concrete infrastructure and provides an optimal solution for nondestructive inspection of existing bridges, pavement, nuclear power plants, and other concrete infrastructure. This is a collaborative effort with Dr. Chris Ramseyer, an expert in constructed concrete at OU School of Civil Engineering and Environmental Science.
Publication: http://aip.scitation.org/doi/10.1063/1.5009936