What is a main advantage of using a moving grid over a stationary grid?

The main advantage of using a moving grid is that grid lines will be blurred and not visible due to the motion of the grid during the exposure. This motion helps to minimize the visibility of grid lines on the radiograph, which can otherwise detract from image quality. The primary function of a moving grid is to reduce the amount of scatter radiation that reaches the imaging receptor while maintaining overall image clarity. By moving during the exposure, it eliminates distinct shadows from the grid lines, allowing for a cleaner and more focused image.

This is particularly beneficial in radiographic procedures where a clear image without artifacts is crucial for accurate interpretation. The effectiveness of a moving grid lies in its ability to maximize the absorption of unwanted scatter, thus enhancing the contrast of the final image without introducing additional grid artifacts.