GAS ELECTRON MULTIPLIER, MANUFACTURING METHOD OF GAS ELECTRON MULTIPLICATION FOIL USING IT, AND RADIATION DETECTOR USING GAS ELECTRON MULTIPLIER

摘要

PROBLEM TO BE SOLVED: To reduce expansion of electrons as compared with a conventional one without degrading the multiplication factor of electrons; to provide a high electron multiplication factor; and to improve positional resolution.;SOLUTION: This gas electron multiplier using interaction between radiation and gas by an photoelectric effect includes a chamber 102 filled with gas, and a single gas electron multiplication foil 12 arranged in the chamber. The gas electron multiplication foil is made of a plate-like multilayer body composed by having a plate-like insulation layer 12a formed out of a macromolecular polymer material having a thickness of around 100-300 μm, and flat metal layers 12b and 12c overlaid on both surfaces of the insulation layer, and the plate-like multilayer body is provided with through-hole structures 12d.;COPYRIGHT: (C)2007,JPO&INPIT