Today, I would like to add some knowledge about flat panel detector. As mentioned in the previous article, flat panel detector is a kind of sophisticated and expensive equipment, which plays a decisive role in imaging quality. Being familiar with the performance index of detector can help 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 recognized by clinical and radiographic experts around the world.
The technical core of DR is flat plate detector. 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 the detector is helpful for us to improve imaging quality and reduce X-ray radiation dose
The flat plate detector is composed of a shell (protective layer), a fluorescent layer, a circuit board, and a radiator, wherein the fluorescent layer is divided into CSI and GDS(GDOS0).The CSI fluorescent layer shows a clearer image, and the GDS fluorescent screen is more sensitive.
According to semiconductor materials, it can be divided into amorphous Selenium flat detector and amorphous silicon flat detector. Amorphous Selenium flat detector has higher sensitivity and is usually used in dynamic plate.
According to the classification of image software, there may be medical software, animal software and industrial software.
In the use of the plate detector, it should be noted that the most suitable temperature of the plate working environment is 5° to 35°. If it is used in tropical areas, it should do a good job of cooling control.At the same time, attention should also be paid to the etching effect. The theoretical life of the plate detector is 3 years, and the long-term use of the plate detector will produce artifacts that cannot be eliminated due to the etching effect, thus affecting the image quality.So that’s all for today’s supplement for the plate detector.
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