Stand–off Detection
The objective of stand-off detection is to enable detection to take place further away from people and vital assets and reduce the potential for severe damage. Some stand-off methods are focused on chemical identification (to detect explosives, breakdown products, and/or precursors) while others are based on the detection of suspicious packages, wire, fragmentation materials and other physical attributes of IEDs. Key challenges include extending distances at which effective screening can be conducted, reducing the impacts of various interferences and backgrounds (e.g., atmospheric and environmental), and effective screening of more than one potential threat at a time while in motion.

