Coherent x-ray scatter imaging for foodstuff contamination detection

Gerhard Martens; H. Bomsdorf; Geoffrey L. Harding; Jurgen Kanzenbach; R. Linde

doi:10.1117/12.171258

28 March 1994 Coherent x-ray scatter imaging for foodstuff contamination detection

Gerhard Martens, H. Bomsdorf, Geoffrey L. Harding, Jurgen Kanzenbach, R. Linde

Author Affiliations +

Proceedings Volume 2092, Substance Detection Systems; (1994) https://doi.org/10.1117/12.171258
Event: Substance Identification Technologies, 1993, Innsbruck, Austria

Abstract

Using the novel technique of energy-dispersive X-ray diffraction tomography, measurements were made of the coherent X-ray scatter from various types of foodstuff (chocolate, bacon, cherry jam, chicken breast) with their typical contaminants (macrolon, blue foil, cherry stones/wood and bone, respectively). In addition, it is shown how the use of a window technique in the diffraction spectrum allows cancellation of the foodstuff contribution in scatter images, leaving only that of the contaminant. The extension to multicomponent systems, allowing arbitrary elimination of unwanted materials in coherent scatter images, is possible. Taken together, these results indicate the great potential of coherent X-ray scatter analysis for contamination detection in the foodstuff industry. By development of more efficient X-ray scatter geometries, using e.g. fan beam irradiation with simultaneous acquisition of spectra from different voxels, the requirements of industrial mass production with respect to inspection time and resolution are likely to be met.

Citation Download Citation

Gerhard Martens, H. Bomsdorf, Geoffrey L. Harding, Jurgen Kanzenbach, and R. Linde "Coherent x-ray scatter imaging for foodstuff contamination detection", Proc. SPIE 2092, Substance Detection Systems, (28 March 1994); https://doi.org/10.1117/12.171258

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