Monte Carlo Simulations for the Detection of Buried Objects Using Single Sided Backscattered Radiation

PloS One
Mary YipDavid A Bradley

Abstract

Detection of buried improvised explosive devices (IEDs) is a delicate task, leading to a need to develop sensitive stand-off detection technology. The shape, composition and size of the IEDs can be expected to be revised over time in an effort to overcome increasingly sophisticated detection methods. As an example, for the most part, landmines are found through metal detection which has led to increasing use of non-ferrous materials such as wood or plastic containers for chemical based explosives being developed. Monte Carlo simulations have been undertaken considering three different commercially available detector materials (hyperpure-Ge (HPGe), lanthanum(III) bromide (LaBr) and thallium activated sodium iodide (NaI(Tl)), applied at a stand-off distance of 50 cm from the surface and burial depths of 0, 5 and 10 cm, with sand as the obfuscating medium. Target materials representing medium density wood and mild steel have been considered. Each detector has been modelled as a 10 cm thick cylinder with a 20 cm diameter. It appears that HPGe represents the most promising detector for this application. Although it was not the highest density material studied, its excellent energy resolving capability leads to the highest quality sp...Continue Reading

References

Sep 7, 2001·Precambrian Research·A H Knoll
Sep 18, 2007·IEEE Transactions on Bio-medical Engineering·M Iqbal SaripanKevin Wells
Mar 17, 2011·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Ivan V Khodyuk, Pieter Dorenbos

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BETA
X-ray
irradiate

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Matlab

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