Position of x-ray grid

X-ray grid is a device used for medical film diagnosis to improve image contrast and image quality. Where should the x-ray grid be placed in use?
In photography, the x-ray grid is placed between the film and the body, and the scattering rays can not pass through the gap between the lead strips because of their angle with the lead strip. Therefore, most of the scattering rays are absorbed by the lead strip, which greatly reduces the scattering rays received on the film, thus improving the contrast of the image, improving the imaging quality of the X-ray film and reducing the damage to the human body.

Author：Abby