Explosive-Specific Mine Detection Using Nuclear Technologies for Countermine Applications

Physical Sciences Inc. (PSI) proposes to develop a real-time nuclear detection system for explosives in mines. Mounted on a vehicular platform, this mine detection sensor will be capable of supporting tactical countermine operations as a confirmatory oreven primary sensor system. The advanced mine detection technique will be based on an advantageous combination of pulsed thermal neutron analysis (PTNA) and fast neutron analysis (FNA) to detect explosive-specific signatures in mines with high sensitivityand low background in real time. The development of this sensor system will employ high-resolution gamma-ray detectors and result in performance characteristics providing low false-alarm rate. In Phase I, we will demonstrate a proof-of-concept system inthe laboratory, optimize the sensor operating parameters under various conditions, and determine the most suitable design configuration for the Phase II prototype. The goal for the subsequent Phase II will be to build the prototype sensor system anddemonstrate its performance in field tests. Potential commercial uses of this real-time nuclear sensor technology include the improved detection of explosives and chemical warfare agents at borders, in airports, and for arms control treaty verification.Real-time screening for smuggled drugs in law enforcement operations is another potential application with a commercial market.