Liquid detection trial with x-ray diffraction

G. Harding; H. Fleckenstein; S. Olesinski; G. Zienert

doi:10.1117/12.864144

2 September 2010 Liquid detection trial with x-ray diffraction

G. Harding, H. Fleckenstein, S. Olesinski, G. Zienert

Proceedings Volume 7806, Penetrating Radiation Systems and Applications XI; 78060G (2010) https://doi.org/10.1117/12.864144
Event: SPIE Optical Engineering + Applications, 2010, San Diego, California, United States

Abstract

SALOME (an acronym for Small Angle Lab Operation Measuring Equipment) is a versatile, energy-dispersive x-ray diffraction imaging (XDi) test-bed facility commissioned and supported by the Transportation Security Laboratory, Atlantic City, USA. In work presented here, the Inverse Fan-beam (IFB) topology has been realized on SALOME and used to investigate the liquids identification capability of x-ray diffraction (XRD). Liquids were investigated from four classes of materials of relevance to security screening of aircraft passenger luggage; namely: dilute aqueous liquids; concentrated aqueous liquids; hydrocarbon fuels; and oxidizers. A set of features associated with the Molecular Interference Function (MIF) were used to classify the liquids. Within the limited scope of this investigation, XRD proved to have excellent capability for discriminating liquids from one another; in particular, for isolating the threat materials without raising false alarms from either household or innocuous substances. Consequences for XRD-based screening of air passenger luggage are summarized.

Citation Download Citation

G. Harding, H. Fleckenstein, S. Olesinski, and G. Zienert "Liquid detection trial with x-ray diffraction", Proc. SPIE 7806, Penetrating Radiation Systems and Applications XI, 78060G (2 September 2010); https://doi.org/10.1117/12.864144

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