Do you know how the grid is classified?

Classification of grids:

According to the structure:
1 convergence grid: each lead strip is tilted to the focus, that is, the lead strip extension line is concentrated in the focus
2 parallel grid: each lead strip is parallel to each other in the vertical plane
3 cross grid: composed of two parallel grids, the lead strips are 90° apart
4 arc grid: from the center to the outward expansion of the same radius, tile-like
According to the material:
1 commonly used grids: internal spacers are composed of non-metallic materials, such as wood chips, paper sheets, plastics and other non-metallic low-density materials;
2 full metal grid: the internal spacer is metal material: aluminum sheet. Its high strength and good moisture resistance;
structure:
The appearance of the grid plate is a flat plate with a thickness of 4~8mm. The internal structure is formed by the intersection of many thin lead strips. The two lead strips are filled with an X-ray permeable material and bonded together. The filler may be wood, paper or aluminum sheets or the like. Finally, the upper and lower sides are packaged with a thin aluminum plate to form a grid pattern. From the cross-section, the direction of the lead strips of the filter plates will gather a little. From the entire grid, there is a convergence line.
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Author：Alina