What is an anti scatter grid?
An anti-scatter grid is a device, typically composed of narrow parallel strips of lead, that is placed between the patient and the image detector. It blocks scattered x-rays from reaching the film but allows nonscattered x-rays that pass from the x-ray tube and through the patient to reach the film, improving image contrast. The grid moves during the x-ray exposure, so that the grid is not visible on the radiographic image.
