With the improvement and development of CT equipment, the correct use of CT, reducing the wear and tear of the tube, and reducing operating costs are the concerns of CT staff in every hospital. Below, this article will discuss this issue from both theoretical and theoretical perspectives.

The imaging principle of X-ray tube production:

1. The reason why drama can create images of the human body on fluorescent screens or films is based on the characteristics of X-ray, namely its penetrability, fluorescence effect, and photography effect; On the other hand, it is based on the differences in density and thickness of human tissues. Due to this difference, the level of absorption of X-rays varies when they pass through various tissue structures in the human body, resulting in differences in the amount of X-rays reaching the fluorescent screen or X-ray film.

In this way, different black and white images are formed on the fluorescent screen or X-ray film.

Therefore, the composition of X-ray images should have the following three fundamental conditions: first, X-rays should have a certain degree of penetrability in order to penetrate the reflected tissue structure; second, the penetrated tissue structure must have differences in density and thickness, so that the remaining amount of X-rays after calibration and absorption during the penetration process will be different; Thirdly, the remaining X-ray with differences is still invisible and requires imaging. For example, imaging through X-ray photographs or image intensifiers can also be achieved through detector matrix acquisition. After A/D analog-to-digital conversion, a digital image can be formed, which can be displayed using a display device or printed on different media using various printers. Only then can X-ray images produced by X-ray tubes with black and white contrast and hierarchy be displayed.

When X-rays penetrate tissues with different densities, tissues with higher densities are absorbed more, while tissues with lower densities are absorbed less. Therefore, the remaining amount of X-rays varies, forming a black-and-white contrast X-ray image.

When X-rays penetrate tissues or organs with different thicknesses, thicker areas absorb more X-rays, while thinner areas absorb less X-rays, resulting in differences in the remaining amount of X-rays. In fact, density and thickness often have a comprehensive impact on X-ray imaging.

2. The influence of tube parameters on imaging

The indicators that affect the quality of X-ray imaging in X-ray tube production are usually balanced by two indicators: spatial resolution and density resolution. Apart from equipment reasons, the parameters and performance of the tube also have a significant impact on these two parameters. Below, we will analyze the X-ray imaging quality from the perspective of the tube.