Line-Focus Principle - Video Lesson

Hey, everybody. Welcome back. In this video, we'll be covering topics related to the line focus principle. The line focus principle describes the relationship between the actual focal spot on the anode and the effective focal spot that extends from the anode. This principle is important because it has an enormous effect on both the heat capacity of the x-ray tube. The spatial resolution of the resulting radiographs and the coverage of the X-ray beam. Without using the line focus principle, our ability to produce high quality radiographs would be significantly limited. So here's the underlying issue. The process of x-ray production produces a significant amount of heat within the anode called tube loading. About one percent of electron energy is converted into x rays, while the remaining ninety nine percent becomes wasted heat in the anode. The physical area of the anode where electrons are converted into