What is the purpose of using grids in radiographic imaging?

The use of grids in radiographic imaging is primarily to reduce scatter radiation that reaches the image receptor. Scatter radiation can degrade the quality of the image by causing unwanted fog or haze, which decreases the contrast and clarity of the radiograph. Grids are designed with a series of lead strips that are aligned in such a way that they allow primary radiation to pass through while absorbing much of the scatter radiation, which helps in producing a clearer and more diagnostic image. By achieving this, grids enhance the overall quality of the radiographic study, making them an essential tool in the imaging process, especially for thicker body parts where scatter is more prevalent.