Where are grids typically located in relation to the patient?

Grids are typically placed behind the patient during radiographic procedures. This positioning is crucial because grids are designed to absorb scatter radiation, which can occur when x-rays pass through the patient's body. By placing the grid behind the patient, it effectively cleans up the scattered rays before they reach the image receptor, enhancing the quality of the image. This improved contrast allows for better visualization of the structures being examined.

The other options misrepresent the standard positioning of grids. For instance, having the grid in front of the patient or on the x-ray machine would not effectively reduce scatter radiation affecting the image quality. Similarly, placing the grid beside the imaging plate does not comply with the intended use of the grid, which is to intercept scatter radiation post-patient interaction. Thus, the correct positioning of the grid is essential for optimal radiographic outcomes.