Digital flat DR detector is the core of DR technology, which is mainly composed of a protective layer (shell), a fluorescent layer, a circuit board and a radiator. Working principle of digital flat panel detector is located in the probe on the surface of the attenuation of X-ray scintillator will through the human body after converted to visible light, under the scintillation of amorphous silicon photodiode array and visible light is converted to electrical signals, the capacitance of the photodiode itself form the storage charge, storage charge of each pixel is proportional to the incident X-ray intensity, under the action of control circuit, The stored charge of each pixel is scanned and read out. After A/D conversion, digital signal is output and sent to computer for image processing to form Digital X-ray image.
Digital flat DR detector has the following advantages,
1, DR imaging, image clear and delicate, high resolution, wide gray level, large information, large dynamic range.
2, high density resolution, get more image details.
3. DR imaging, fast projection speed, little effect of motion artifact.
4, DR imaging radiation is small, digital X-ray image than ordinary image radiation reduction of 30%-70%.
5. Digital image shows better bone structure, articular cartilage and soft tissue than traditional X-ray image.
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