Microchannel plate

摘要

The present invention relates to an MCP with sufficient physical strength and high detection efficiency. The MCP has a double cladding structure composed of first cladding glasses each of which has a through hole serving as a channel, and a second cladding glass having a high acid resistance and employing a honeycomb structure. In an entrance end face each first cladding glass has a tapered opening.

主权项

1. A microchannel plate comprising a main body comprised of lead glass which exhibits electric insulation before a reduction treatment and exhibits electric conduction after the reduction treatment,
wherein the main body comprises: first cladding glasses each of which has a through hole extending along a predetermined direction and provided for defining a channel wall, said first cladding glasses having a predetermined acid resistance; and a second cladding glass which functions as a main electroconductive part and is located at least in part in spaces among outer peripheral surfaces of the first cladding glasses in a state in which the second cladding glass is in contact with the outer peripheral surfaces of the respective first cladding glasses, said second cladding glass having an acid resistance higher than the acid resistance of the first cladding glasses, wherein on an entrance end face side of the microchannel plate, an opening end of the through hole in each of the first cladding glasses is processed in a taper shape, and wherein in a cross section of the microchannel plate perpendicular to the predetermined direction, the second cladding glass has a constant width and outer peripheries of the first cladding glasses are deformed in a hexagonal shape whereby the second cladding glass constitutes a honeycomb structure.