Do you know anything about the grid? Through the previous articles we have already known the basic structure of the grid, and also understand the structure of the movable grid and the fixed grid, and the role of the grid, then there is no doubt that the filter grid is How to filter out the scattered lines.
The grid is a device that passes the original emission line and filters out the scattered lines to improve the image quality. The definitions of the original emission line and the secondary ray are the original emission line and the primary ray and the radiation emitted from the X-ray tube, and the scattered line and the secondary ray and the original emission line are injected into the human body to have a special effect on the human tissue. The generated wavelength is longer than the original emission line and the radiation direction is disordered. Due to the different radiation direction of the scattered rays, the image appears to be blurred, and the gray-white contrast is not high, and the quality of the image is generated.
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