What are the types of flat panel detectors?

What are the types of flat panel detectors? Amorphous plates can also be divided into two categories by different materials: a-Se amorphous selenium layer and a-Si amorphous silicon layer.
a-Se (Amorphous Selenium Flat Panel Detector): This is a direct detection technology that detects X photons directly in the selenium paint layer and then converts its electrical signal into a digital signal. At present, this technology has less application scope and belongs to non-mainstream X-ray flat panel detectors.
a-Si (Amorphous Silicon Flat Panel Detector): This is a two-step digital conversion technology. X photons are first converted into visible light, then detected by photoelectric detection technology, and then converted into digital signals. Due to different coating technologies, it can be divided into amorphous silicon + gadolinium oxide flat panel detectors and amorphous silicon + cesium iodide flat panel detectors. At present, this technology is widely used in the world’s major well-known manufacturers, and the application range is very wide.
Amorphous selenium is afraid of cold, and amorphous silicon is afraid of moisture. It is very important to maintain the working environment. During use, the environment of the computer room should be controlled as strictly as possible according to the requirements of the manufacturer. Dehumidifiers and air conditioners must be installed in the computer room, otherwise it will be damaged. faster.
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Author：Newheek-Detector