Basic structure of image intensifier

The core component of image intensifier is image intensifier tube. Its structure is encapsulated with input screen, focus electrode, anode, output screen and ion pump in high vacuum glass shell.

The input screen is used to convert X-ray images into electronic images. It consists of four layers: aluminium substrate, fluorescent layer, isolation layer and photoelectric surface.

Electrostatic lens can focus electron beam.

The output screen is used to convert enhanced electronic images into visible images. Its main structure is output photoelectric layer and glass layer. The glass layer is part of the shell of the reinforcing tube and is the support of the output screen. The inner and outer surface of the fluorescent layer is coated with a layer of aluminum foil to form an output photoelectric surface.

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Author:Yevette