X-ray film imaging technology is a technology that uses film to record X-ray transmission of the detected object, thus carrying the internal information of the object, and then detects and evaluates the object through darkroom processing such as development and fixing. The system includes: X-ray source, film, developing and fixing reagent and drying equipment.
Digital real-time imaging system includes X-ray tube, detector array, mechanical scanning system, signal amplification and data acquisition processing unit, computer image processing storage and transmission system, image display system and so on. After passing through the detected object, x-ray carries the internal composition information of the object. After passing through a collimator, it enters the conversion device composed of the detector and the electronic system. The output signal of the conversion device has a positive relationship with the intensity of the ray shot into it.