The x ray grid is classified according to material and structure

Used to filter out the effects of scattered rays on film

It should be placed between the human body and the film, and most of the scattered rays can be filtered out, and only a small part of the scattered rays can pass through.

classification:

According to the structure:

1 Convergence grid: each lead bar is inclined to the focus, that is, the lead extension line is concentrated on the focus

2 Parallel grid: each lead bar is parallel to each other in the vertical plane

3 Cross grid: It is composed of two parallel grids, and the direction of the lead bar is 90 ° to each other

4Circular arc grid: It is formed by superposition of equal radii extending outward from the center, in the shape of a tile

According to the material:

1 Commonly used filter grid: the internal spacers are composed of non-metallic materials, such as wood chips, paper chips, plastics and other non-metallic low-density materials;

2 All-metal wire grid: the internal spacer is a metal material: aluminum sheet. It has high strength and good moisture resistance.

Author：Amy