What is one function of composite filters in fluoroscopy?

Composite filters in fluoroscopy play a crucial role in minimizing the exposure to characteristic x-rays, which can improve patient safety and image quality. Characteristic x-rays are produced when high-energy radiation interacts with the target material in the x-ray tube, which can result in lower quality images and unnecessary radiation exposure to patients. By using composite filters, radiologists can selectively attenuate these unwanted x-rays while allowing the desired diagnostic x-rays to pass through more easily. This enables a clearer image by enhancing the contrast and overall quality of the radiographic results, thereby helping to achieve optimal diagnostic outcomes with lower patient dosage. The effectiveness of filters in shaping the x-ray beam is essential for maintaining safety standards and improving the diagnostic value of fluoroscopic procedures.