An inspection system may be deployed as part of a routine crew transfer diving (“CTV”) or service operation vessel (SOV) deployment to perform inspections for analyses which can be conducted while carrying out other inspection tasks. A marinized digital detector array and betatron source may be maneuvered proximate a first detector plate, which can be of a plurality of detector plates and a first exposure generated at the first detector plate which is then used to aid in generating one or more images comprising each such exposure. The images are then reconstructed to identify defects in the grout.