The size of the flat panel detector is not as big as possible. A flat panel detector is a high-tech imaging device that can directly convert X-rays passing through the human body into images. The image size of the flat panel detector has several different specifications, for example, 14 inches * 17 inches, 17 inches * 17 inches and so on. The larger the size of the flat-panel detector, the larger the effective imaging area that can be photographed, and the higher the price. The larger the size the better, it depends on the scene and scope of use. If you usually only take pictures of small parts such as knees, limbs, leg bones, etc., then it is obviously a waste to buy a large flat panel detector. At this time, buying a small flat panel detector will make the best use of it. Therefore, the larger the size of the flat panel detector, the better.