What is the minimum source-to-skin distance for stationary equipment?

The correct answer is based on established radiation safety standards and guidelines that govern the operation of radiological equipment. The minimum source-to-skin distance (SSD) for stationary equipment is set to minimize the dose of radiation exposure to the patient while also ensuring optimal imaging quality.

In this context, maintaining a minimum distance of 15 inches helps to reduce the radiation dose that a patient receives by increasing the distance between the radiation source and the surface of the skin. This principle is rooted in the inverse square law of radiation, which states that the intensity of radiation is inversely proportional to the square of the distance from the source. By adhering to this standard, facilities can improve patient safety and comply with health regulations.

Moreover, the specified minimum distance reflects a balance between practical operating conditions and safety protocols. It helps facilities avoid unnecessary exposure while still allowing for effective imaging, ensuring that operations align with best practices in healthcare settings.