The imaging/inspection method has greatly evolved since its inception and it is now used in many industries for diverse types of product. 

The first thing to understand is that CT is an x-ray-based imaging method that is performed only after all the standard x-ray safety precautions and concerns are addressed. But it is far from standard conventional x-ray. In conventional x-ray, the x-rays are pointed at an object, they pass through that object with various levels of absorption, and finally they are captured on a film, imaging plate, or digital detector. The result is a two-dimensional image of the object under test. This image is what a doctor or an industrial technician will interpret to determine if everything is acceptable, or if there are any issues.