Multi-energy technology uses two X-ray energy levels to determine the atomic number of objects under examination, and then colorizes the image based on material type. Organic materials are orange, mixed materials are green, and metallic is blue.
Transmission X-rays provide high-energy with high-performance for greater penetration and detection—even in dense cargo. In addition, Z Backscatter® technology can complement transmission X-rays by providing context and clarity to expedite inspections and further visualize the shape and form of cargo contents for manifest verification and contraband detection.
Transmission technology can reveal fine details with superb resolution and can offer some level of material discrimination with dual-energy. However, the more objects or clutter in the path of the beam, the less object and material differentiation is achieved. Because of this, many of our products offer a combination of Z Backscatter and transmission technology to give inspectors richly detailed information about the contents of a vehicle or container. Z Backscatter photo-like images also complement transmission X-rays by providing context and clarity to expedite inspections.