An x-ray diffraction-based scanning method and system are described. The method includes screening for a particular substance in a container at a transportation center using a flat panel detector having a photoconductor x-ray conversion layer to detect x-rays diffracted by a particular substance in the container. The diffracted x-rays may be characterized in different ways, for examples, by wavelength dispersive diffraction and energy dispersive diffraction.


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> Decontamination of fluids or objects contaminated with chemical or biological agents using a distributed plasma reactor

> Magnetic recording medium, process for producing same and magnetic disc apparatus

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