X-ray diffraction

X-ray diffraction

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This image is part of the feature Geoforensics

Credit: LOUISE MURRAY/SCIENCE PHOTO LIBRARY

Caption: X-ray diffraction of soil samples taken from a crime scene. The soil is contained within the capillary sample holder (centre). X-rays are passed through the soil samples to produce a diffraction pattern. The pattern produced depends on the crystal structure of the mineral present. This method is used to produce a detailed analysis of the minerals present within the soil. The results can be compared and matched to a geographical map of soil types and assist as evidence towards a crime investigation. Photographed at the Macaulay Institute, Aberdeen, UK.

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Keywords: 2006, analysing, chemical, chemistry, crystallography, detecting, device, diffracting, diffraction, diffractometer, equipment, evidence, forensic evidence, forensic science, forensics, geoforensics, instrument, lab, laboratory, machine, physical, physics, sampling, science, scientific, soil, soil sample, technological, technology, x-ray diffraction, xray

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