论文部分内容阅读
X 线管焦点散焦值(晕值)是焦点的主要特性之一。本文主要阐述应用2°星形测试卡测试 X 线管焦点的散焦值原理、方法和数据处理等问题。
X-ray tube focus defocus value (halo value) is one of the main features of the focus. This article mainly expounds the application of 2 ° star test card to test the focus of the X-ray tube defocus value principle, methods and data processing and other issues.