Imaging principle of image intensifier
X-rays from the tube after the launch through the human body. As the density of human tissue is different, the X rays of different intensity are projected onto the input screen of the intensifier, and the X rays are converted to visible light by stimulating the cesium iodide coating in the fluorescent layer, and the intensity of these visible light is also different.
The photoelectrons are produced by the photoelectric effect in the photocathode (photocathode). The photoelectrons refract and focus through the electric field interface inside the inner gallbladder, and the electronic image is formed by the high voltage power supply.
The electronic image is transformed again into visible light and image by the cesium ion on the output screen, and reflected through the aluminum film to the camera connected to the output terminal.