Patent ID: 6707059
Filing Date: 2004-03-16
Classification: G01N

Abstract:
A solid state radiation detector comprising:a first electrode layer having permeability with respect to recording radiation, or light emitted by excitation of said radiation; a recording photoconductive layer which exhibits electric conduction when irradiated with said recording radiation or said light; a reading photoconductive layer which exhibits electric conduction when irradiated with reading light; and a second electrode layer comprising a plurality of main line electrodes and a plurality of secondary line electrodes, wherein said main and secondary line electrodes are alternately arranged in parallel to one another; said first electrode layer, said recording photoconductive layer, said reading photoconductive layer, and said second electrode layer being stacked in the recited order; said main line electrodes having permeability with respect to said reading light, said secondary line electrodes outputting an electrical signal which has a level proportional to a quantity of latent image charge stored in a charge storage portion formed between said recording photoconductive layer and said reading photoconductive layer; wherein a width Wb of each of said main line electrodes, a transmission factor Pb of each of said main line electrodes with respect to said reading light, a width Wc of each of said secondary line electrodes, and transmission factor Pc of each of said secondary line electrodes with respect to said reading light satisfy a condition equation of (WbÃ—Pb)/(WcÃ—Pc)&gE;1, and said transmission factor Pb and said transmission factor Pc are different values.