Material Discrimination X-ray (MDX) Technology

Eagle’s dual energy technology, Material Discrimination X-ray (MDX), measures the ratio of two different sets of x-ray energies that pass through a product and this measurement enables organic and inorganic materials to be differentiated, providing food processors with unprecedented contaminant detection capabilities.

Food processors worldwide are increasingly relying on Eagle’s superior MDX technology, originally pioneered for use in the security sector, to detect foreign bodies previously unseen by x-ray or other conventional inspection technologies in difficult product applications.

Material Discrimination Technology MDX Applications

Dual energy technology is better at detecting objects that show a very small x-ray absorption variation. This means that dense foreign bodies in dense products are more easily detected using MDX compared with single energy.

  • Inspection of all types of packaging: MDX technology allows food processors to inspect products in popular packaging designs, such as fold-out cardboard sandwich packaging and corrugated card encasements that plague single energy x-ray inspection.
  • Multi-textured foods: Packaged foods such as bags of salads, trail mix, potatoes and chocolates, for example, as well as bulk inspection of fruits, vegetables or meat have high variations in density, resulting in ‘busy’ x-ray images, which makes identifying foreign bodies a challenge using single energy x-ray technology.

Image 1: X-ray vs MDX images of golf balls contaminants within bulk potatoes


Image 2: X-ray vs MDX images of stones and glass contaminants within bulk nuts