Digital Explosive Driven Fragments Imaging System

To address the Air Force need for imaging explosively driven fragments, Physical Optics Corporation (POC) proposes, in Phase II, to advance development of the Digital Explosive Driven Fragments Imaging (DEFIN) system proven feasible in Phase I. The DEFIN system is based on innovative integration of high-resolution multiple imaging sensor along with short pulse, high-repetition laser illumination. By using pulse laser with short pulse duration for illumination and capturing the time-varied fragment positions the system can detect and track trajectories of high velocity explosively driven fragments and determine their size, velocity, and mass. The primary goal of the Phase II effort is to assemble a field-portable modular prototype that is versatile to capture hundred micron-sized particles during small-scale experiments. In Phase II, POC plans to build the DEFIN prototype based on Phase I design and validate its fragment measurement capability by modeling, simulation, and testing in laboratory and field environments. POC will demonstrate DEFIN on small test articles and will prove DEFINs validity with modeling and simulation for large articles. The post-processing of the data will be automated. The prototype systems capabilities will be demonstrated to the Air Force, and a technology maturation roadmap will be developed.