Image intensifier installation location

The image intensifier consists of an input surface, a photocathode, a cluster electrode, an anode and an output surface in a vacuum state.
After the conversion of X-rays, the photoelectrons are accelerated by high voltage, and are collected by the electron lens composed of the collecting electrode and the anode to form an image on the output surface.
When the X-rays pass through the human body, X-rays of different intensities are projected on the input screen according to the different densities of the human tissue, and the photocathode inside the fluorescent screen generates different numbers of photoelectrons according to the intensity of the fluorescence, and the photoelectrons of the photocathode are subjected to Attracted by the positive potential of the anode, it flies to the positive at high speed, and the photoelectrons pass through the small hole of the anode and are projected on the output screen, producing a visible image, which is brighter and smaller in size than the previous fluoroscopic image.
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Author:Image Intensifier