Flat plate detector is a kind of precise and expensive equipment, which plays a decisive role in imaging quality. Being familiar with the performance index of detector is helpful to improve imaging quality and reduce X-ray radiation dose.
Digital X-ray photography (Digital Radiography, DR) for short, is a new technology developed in 1990 s X-ray photography, with its faster imaging speed, easier operation, higher image resolution and other significant advantages, become the dominant direction of Digital X-ray photography, and recognised by clinical and radiographic experts around the world.
At present, most X-ray machines are equipped with DR imaging system, and the core of DR technology is flat panel detector, the use of which can make the image quality clearer.
According to the material, the plate detector can be divided into amorphous silicon and amorphous selenium. In the film, the doctor will select DR of different type of flat plate detector according to different inspection parts.For the examination of the chest, the focus will be on observing and distinguishing the density of different tissues, so the density resolution requirements are relatively high.In this case, it is appropriate to use the DR of amorphous silicon plate detector, so as to obtain a relatively high degree of image, which is more helpful for diagnosis.For the examination of limb joints and mammary glands, it is necessary to have high detail imaging and high spatial resolution. Therefore, it is appropriate to use the DR of amorphous selenium plate detector to obtain high spatial resolution images.