What is one of the primary purposes of proper radiographic collimation?

One of the primary purposes of proper radiographic collimation is to reduce patient exposure. Collimation involves adjusting the x-ray beam to closely fit the area of interest, which minimizes the amount of unnecessary radiation scattered to surrounding tissues. By limiting the exposure to only the area that needs imaging, collimation not only protects the patient from excess radiation but also aligns with the principle of ALARA (As Low As Reasonably Achievable), which aims to keep radiation doses as low as possible while still achieving diagnostic quality images. This practice is crucial in radiography, as it enhances patient safety and reduces the risk of potential radiation-related health issues.