What is leakage radiation?

Leakage radiation refers to X-rays that escape from the protective housing of the X-ray tube or from the collimator rather than being directed toward the patient during a fluoroscopic procedure. This unwanted radiation is a concern because it can contribute to unnecessary radiation exposure to both patients and healthcare workers. The design of X-ray systems includes shielding to minimize leakage radiation, ensuring that any stray radiation is kept within acceptable limits for safety standards.

The other scenarios mentioned do not align with the definition of leakage radiation. For example, X-rays emitted from the collimator are typically part of the directed beam and reflect the intended output rather than unintended leakage. Likewise, X-rays absorbed by the patient are an integral part of the diagnostic process and do not fall under leakage radiation. Lastly, X-rays produced during the exposure are the primary function of the X-ray system, designed for imaging, and are not considered leakage since they are meant to be administered to the patient. Understanding the distinction between these concepts is essential for ensuring radiation safety and compliance with regulatory standards in fluoroscopic imaging.