Micro-Particle Debris Characterization from Hyper-Velocity Impacts

Leveraging the results of our Phase I work, the Torch Team proposes to execute laboratory-based experiments to elucidate fundamental micro-debris formation mechanisms to improve optical modeling of impacts. Optical signatures from impacts collected over the last decade have identified definitive micro-debris parameter trends. However, current theories have difficulty reproducing these optical observations. Our Phase II work plan includes the development of innovative particle sizing instrumentation. Moreover, a novel experiment will be conducted to validate radiometric inversion methodologies for determining micro-debris properties in ground and flight tests, thereby leveraging existing optical data collected on impacts. Our proposed experimental approach will address critical micro-debris characterization data gaps in a timely and cost effective manner to improve hypervelocity impact electro-optic/infrared (EO/IR) modeling. Approved for Public Release, 15-MDA-8303 (1 July 15)