Types of grids and their respective structural features

There are many types of grids, which can be divided into the following categories according to their structure, material and movement. According to its structure classification, it can be divided into three types: convergence grid, parallel grid and cross x ray grid. According to its material classification, it can be divided into metal and non-metal. According to its movement mode, it can be divided into fixed type and movable type. The following is a separate description.

The convergence grid, the parallel grid, and the cross grid are the most widely used in the grid, and the structural characteristics are analyzed.
Structure: Convergence grid: There is a flat plate on the outside of the grid to protect the gap between the lead strip and the lead strip inside the grid. The strip filler between the lead strip and the lead strip is concentrated at the focus. The direction of the lines is arranged obliquely to ensure that the horizontal extension lines of each lead strip are brought together and then packaged up and down with an aluminum plate.

Author：Alina