Increasing the capability of MNBRP for the detection of anti-personnel landmines.
Monte Carlo simulations were used to show that even very small explosives (<100g) can be detected by monoenergetic neutron backscattering with resonance penetration (MNBRP) at a depth well beyond 30 cm when time slicing is used for background suppression. At the present state of technology no other nuclear method appears to have a comparable sensitivity or penetration capability. This method has been successfully tested experimentally at a depth of 16.5 cm. A substantial simplification of the detection procedure could be achieved either by taking advantage of the time shadow rather than the geometric shadow or by applying neutron threshold detectors. Using a threshold detector could simplify the application, too.
Institute of Experimental Physics, University of Vienna, A-1090 Vienna, Austria. drosg@ap.univie.ac.at
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D005107:Explosions / Q000517:prevention & control*; D009010:Monte Carlo Method; D009502:Neutrons; D012542:Scattering, Radiation