In DXR, what is the function of a grid ratio?

The function of a grid ratio in DXR (Digital X-Ray) systems is to describe the effectiveness of the grid in reducing scatter radiation. The grid is an important component used in radiographic imaging, as it helps to improve image quality by absorbing scattered photons that do not contribute to the useful image. The grid ratio refers to the ratio of the height of the lead strips within the grid to the distance between these lead strips. A higher grid ratio indicates a more effective grid, capable of absorbing more scatter radiation, which enhances the contrast and clarity of the resulting image. By effectively reducing scatter, the grid allows for higher quality images that are essential for accurate diagnosis.

This understanding is particularly crucial in fields where precise imaging is necessary, such as in medical and industrial radiography.