| 摘要 |
PROBLEM TO BE SOLVED: To make surely increasable the signal electric charge quantity in a radiation solid detector provided with a light radiating linear electrode and an electrifying linear electrode arranged parallelly to each other. SOLUTION: The detector 20 is constructed by laminating a recording light side electrode layer 21, a recording photoconductive layer 22, an electric charge transporting layer 23, a reading photoconductive layer 25, and a reading light side electrode layer 25 having a stripe electrode 26 constructed of an element 26a in this order. A sub-element 27a for outputting an electric signal at a level corresponding to a quantity of latent image polarity electric charge accumulated in an electricity accumulating part 29 formed in the interface between the recording photoconductive layer 22 and the electric charge transporting layer 23 is arranged parallelly to the element 26a. A light shielding film 31, which is provided with a thickness having such reading light irradiation intensity Ub to the element 26a and reading light irradiation intensity Uc to the sub-element 27a so as to satisfy the relationship Ub/Uc>=5, is arranged, while a conditional expression Wc<=Wd<=(Wc+2×Wbc) is satisfied when a clearance between the element 26a and the sub-element 27a is represented by Wbc.
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