What is the minimum source-to-skin distance recommended for X-ray exposure?

The minimum source-to-skin distance recommended for X-ray exposure is typically established to ensure safety and reduce the risk of radiation exposure to the skin and underlying tissues. The choice of 12 inches aligns with established guidelines and best practices. This distance helps to minimize the intensity of radiation that reaches the skin, as radiation intensity decreases significantly with distance due to the inverse square law.

By maintaining a minimum distance of 12 inches, the risk of skin burns and other adverse effects associated with radiation exposure is considerably reduced, thus promoting safer radiographic practices. Additionally, this standard takes into account the need for optimal image quality while ensuring patient safety.

Other distances such as 6 inches may not provide sufficient protection for patient safety, and distances beyond 12 inches may not always be practical in clinical settings. Therefore, 12 inches is recognized as an effective compromise between image quality and radiation safety.