Radiologic Technologist Practice Exam 2025 - Free Radiology Exam Practice Questions and Study Guide

The voltage ripple percentage of a high-frequency generator is indeed less than 1%. High-frequency generators are designed to operate at higher voltages and frequencies, which allows them to produce a much smoother electrical output. This smooth output is characterized by a low voltage ripple, meaning that there is minimal fluctuation in voltage levels during operation.

In the context of radiologic technology, having a low voltage ripple is crucial as it improves image quality by ensuring consistent energy output during the generation of X-rays. A lower percentage of ripple indicates a more stable and efficient system, which translates to better performance and more precise imaging results.

In contrast, other ripple percentages listed, such as 12%, 50%, or 100%, are typical of lower frequency or older generator designs, where significant fluctuations in voltage can lead to inconsistent imaging results and greater patient exposure to radiation due to the requirement for longer exposure times to achieve adequate image quality. Understanding the characteristics of high-frequency generators, including their low voltage ripple, is essential for optimizing both patient safety and diagnostic efficacy in radiologic practice.