Patent ID: 6271511
Filing Date: 2001-08-07
Classification: H01J

Abstract:
A microchannel plate comprising:a plate body formed substantially of glass and having a pair of opposite faces, said plate body including a solid-glass rim portion circumscribing an active area portion of the microchannel plate, and said active area defining a great multitude of fine-dimension microchannels each having a diameter (D) and a length (L) and extending through said plate body to open at respective opposite ends on said opposite faces, said diameter (D) of said microchannels being less than 8.mu., said microchannel plate active area portion having a thickness determined substantially by a L/D ratio of said microchannels, said L/D ratio being no more than about 50, and said active area portion of said plate glass body is formed of glass having no more than about 30% lead oxide (PbO).