We have previously reported on a nuclear technique, the Nitrogen Camera, that has produced images of elemental nitrogen in concentrations and with surface densities typical of buried plastic anti-personnel mines. Since then we have been developing (1) enabling technologies, with most important of which is a mobile 70 MeV light source; (2) computer simulations to determine detection sensitivities with burial depth, explosives content, detector configurations, etc; and (3) deployment practices for both humanitarian and military field operations. Here we review the technique and summarize the state of the implementation.
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