Causes of x-ray grid artifact in DR camera

The causes of x-ray grid artifact can be divided into two points:
1. The x-ray grid is a physical part of the optical path in X-ray photography, so it will definitely be reflected in the image.
2. Why can we see the x-ray grid artifacts of wavy fringes on the monitor instead of the actual x ray grid artifacts? The reason is that the moire fringes are a manifestation of the beat principle. Mathematically speaking, the amplitude of the synthesized signal will change according to the difference between the two frequencies when two equal-amplitude sinusoidal waves with similar frequencies are superimposed.

Author：X Ray Grids Maker