X-ray system

This is the 3D system the most 3D airports are equipped with.there are two ways a 3D X-ray machine may work.  So, first 3D X-ray system detects hard and soft 3D materials by the variation in transmission through the target; in contrast, backscatter X-ray 3D detects the radiation that reflects back from the target. This 3D X-ray system has potential applications in situations where non-destructive examination is required, and can be used even if only one side of the target is available for examination.