The used of fixed x ray grids
Fixed x ray grids are increasingly used in the medical field. X-ray grids make the picture clearer and are able to absorb cluttered scatter lines.
Focal length: the vertical distance from the lead convergence line to the grid plate surface.
Grid ratio: also known as grid ratio, is the ratio of lead height to lead clearance, R.The higher the gate ratio, the better the ability to filter the dispersion.
Grid density: number of lead bars per unit distance, N.Generally, the larger the gate ratio, the greater the gate density.
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Author：Alina
