Two-dimensional radiation detector

摘要

A two-dimensional radiation detector for producing a radiological image which is compatible with conversion into electrical signals. The detector has a multilayer structure, including a scintillator, a transparent electrode film, a photoconductive film and a search-switching layer. The search-switching level has conductors which make contact with the photoconductive film and are arranged in a matrix, a plurality of FETs arranged correspondingly to the matrix and a uniformly planar conductor, in order to apply a bias voltage successively row by row via the FETs to the matrix conductor. Each FET has a drain electrode connected to one of the matrix conductors, a source electrode connected to the uniformly planar conductor and a gate electrode connected to the control circuit. The transparent electrode film has column conductors corresponding to the columns of the matrix conductors, a signal read line being connected to each column conductor.