Causes of cutting effect of x ray grid —— Two

The cutting effect of the x ray grid is the additional absorption of the lead bar of the x ray grid to the X-ray with the information signal.
Lateral tilt or lateral deviation from grid focal length: There are two cases of lateral tilt grid focal length. One is that the photographic distance is the same as the shed focal length, but the focus of the X-ray tube deviates from the focus line (or focus line) to one side. The other is that the photographic distance is the same as the grating focal length, while the grating plane is not perpendicular to the X-ray central line bundle and inclines to one side. At this time, the lead bar of the x ray grid cuts the same amount of raw rays, resulting in a uniformly reduced image density. Generally, it is difficult to distinguish from photographic images, which is mistaken for the inadequacy of X-ray photographic conditions.

Author：X Ray Grids Maker