Terahertz scattering from contaminants embedded in textile rope and sling materials

Terahertz Time Domain Imaging (THz-TDI) is a new technology that is rapidly being explored by researchers around the world with particular interest in non-destructive evaluation (NDE) applications for manufacturing, security screening, and medical imaging. This work expands the scope of THz NDE by investigating its potential as a new and innovative method for NDE of nylon ropes and slings, which are used throughout all branches of the military as well as the civilian construction, transportation and shipping industries. Ropes and slings are exposed to harsh environmental conditions as they are dragged through sand and dirt or exposed to seawater, and their strength is compromised when grains of sand or sea salt become deeply embedded between the rope strands and wear away at its nylon threads.