Automated Screening of Complex Assemblies

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DTB’s client wanted to screen a large number (more than 100,000) of sealed assemblies to non-destructively determine the chemical composition of a powder mixture that was enclosed within multiple metallic containers of steel and brass. The accuracy had to be better than 0.25%, and the screening had to be performed automatically. Additionally, we had to implement the technology in less than four months.

The solution was to develop a screening algorithm that used the concept of a master X-ray image, to which all others were compared, which would eliminate geometric deconvolution requirements and establish a correlation between the chemical composition and X-ray attenuation – while developing methods to acquire highly consistent microfocus X-ray images.