The grid is divided into fixed and movable. The fixed grid has higher requirements on the grid density. The grid with low grid density can be used as a movable grid. The moving direction is vertical. In the direction of the arrangement of the grid, the scattering line can be well filtered without the lead strip shadow
The structural specifications of the grid determine the strength of the grid barrier scattering line. The main specifications are focal length, gate ratio and grid density. The focal length is understood to be the vertical distance from the convergence line of the lead strip to the midpoint of the grid. The focal length can also be understood as the radius. The gate ratio is the ratio as the name implies. The ratio of the lead strip height of the grid and the adjacent lead strip gap is generally expressed by R. The formula is R=H/A, H is the height of the lead strip, and A is the phase. The distance between adjacent lead strips.
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