Types of grid in radiology

Many customers often consult the types of grid in radiology when selecting the types of grid in radiology. Here is an introduction to the types of grid in radiology:
Divided by structure
Convergence grid-each lead bar is inclined to the focal point, that is, the extension line of the lead bar is concentrated on the focal point.
Parallel grid-each lead bar is parallel to each other in the vertical plane.
Crossing grid—composed of two layers of parallel grids, the lead strips are 90° to each other.
Circular arc grid-from the center outwards, the same radius is superimposed, like a tile. The convergence gate is the most widely used.
Divided by motor function
Fixed grid
Vibrating grid-grids with low grid density (28L/cm) can only be used as movable grids, and are mostly used on industrial frequency X-ray machines.
Divided by the material of the grid
Commonly used grids-the internal spacers are made of non-metallic materials, such as wood chips, paper chips, plastics and other non-metallic low-density materials.
All-metal grid-the internal spacer is a metal material: aluminum sheet. It has high strength and good moisture resistance.
Divided by filling material:
Aluminum base-less radiation absorption and cost-effective
Paper base-susceptible to dampness, and now there are very few applications
Carbon-based-the production process is cumbersome and the cost is high, but the ray transmittance is good, and the image quality is good.
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Author：Lillian