Wire grids in diagnostic radiology equipment

The grid should be placed between the human body and the film, which can filter out most of the scattered rays, and only a small part of the scattered rays leak through.
The structure of the grid and the specifications of the grid: The grid has the following three main technical parameters:
1. Focal length: the vertical distance from the convergence line of the lead strip to the surface of the grid plate
2. Grid ratio: It is also a grid ratio, which is the ratio of the height of the lead bar to the gap of the lead bar
3. Grid density: the number of lead bars per unit distance
Classification:
The grid according to the structure:
1 Convergence grid: each lead strip is inclined to the focus, that is, the extension line of the lead strip is concentrated in the focus
2 Parallel grid: each lead bar is parallel to each other in the vertical plane
3 Cross gate: It is composed of two layers of parallel gates, and the directions of the lead bars are 90° to each other.
4 Circular arc grid: It is formed by superimposing the center to expand outward with equal radii, tile-shaped

Author：X Ray Grids Maker