Radiation detector using gas amplication and method for manufacturing the same

摘要

A radiation detector (10) using gas amplification includes: a first electrode pattern (212) which is formed on a first surface of an insulating member (211) and has a plurality of circular openings; and a second electrode pattern (213) which is formed on a second surface of the insulating member opposite to the first surface thereof and has convex portions (214) of which respective forefronts are exposed to centers of the openings of the first electrode pattern (212); wherein a predetermined electric potential is set between the first electrode pattern (212) and the second electrode pattern (213); wherein edges of the first electrode pattern (212) exposing to the openings are shaped in respective continuous first curved surfaces by covering the edges thereof with a first solder material (215).