1results about "Secondary electron emitting electrodes" patented technology

The application relates to the technical field of micro-light imaging, and discloses an image intensifier with a micro-channel plate, which comprises, from top to bottom, a photocathode, a micro-channel plate and a fluorescent screen. The micro-channel plate comprises a lead silicate glass substrate with hundreds of thousands of electron multiplication channels, an input electrode located at the incident end of the channels, an output electrode located at the outgoing end of the channels and a channel inner wall forming the inner surface of the channels. The surface layer of the input electrode and the channel inner wall is a material layer, and the surface layer of the output electrode is a NiCr material layer. The input electrode and the channel inner wall adopt a material layer with a high secondary electron emission coefficient to ensure high gain; the output electrode adopts a NiCr material layer with a low secondary electron emission coefficient to absorb large-angle electrons and collimate the output electron beam, thereby improving the spatial resolution, effectively solving the mutual restriction relationship between the spatial resolution and the gain in the existing micro-channel plate and realizing high-brightness and high-definition imaging.