Radiation image detector

A radiation image and detector technology, applied in the field of radiation image detectors, can solve the problems of reduced readout efficiency and achieve the effect of preventing charge release and improving readout efficiency

Inactive Publication Date: 2011-06-22
FUJIFILM CORP
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0010] In the radiation image detector 50 or 60 disclosed in Japanese Unexamined Patent Publication No. 2003-218335, each opaque film 55c or 65c extends only to the side edge of each wire electrode 55b or 65b, as Figure 10B or 10C, to release the charge in the region of the readout photoconductive layer 44 adjacent to the edge of each of the line electrodes 55b or 65b, resulting in a greater reduction in the readout efficiency

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Embodiment Construction

[0036] Hereinafter, embodiments of the radiation image detector of the present invention will be described with reference to the drawings. figure 1 is a perspective view of the radiation image detector in this embodiment. figure 2 is along figure 1 The line 2-2 in the obtained figure 1 A cross-sectional view of the radiation image detector shown in .

[0037] Such as figure 1 and 2 As shown in , the radiation image detector 10 of this embodiment is composed of a layer structure arranged in the order listed below: a first electrode layer 1, which transmits radiation representing a radiation image; a recording photoconductive layer 2, which receives radiation passing through Radiation transported by the first electrode layer 1 to generate charges; charge transport layer 3, which acts as an insulator for charges of either polarity and as a conductor for charges of the other polarity generated in the recording photoconductive layer 2; readout photoconductive layer 4, whi...

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Abstract

A radiation image detector including the following in the order listed below: a charge storage layer that generates and stores charges by receiving a recording electromagnetic wave representing a radiation image; a photoconductive layer that generates charges by receiving readout light; and an electrode layer having a plurality of first line electrodes that transmits the readout light and is disposed in parallel at a predetermined distance. Further, a second line electrode having electrical continuity with the photoconductive layer is provided between each of the first electrodes, and an opaque line insulator that blocks the readout light is provided on each second line electrode on the side opposite to the photoconductive layer. The opaque line insulator has such a width that a side faceportion of the opaque line insulator resides between the opposing side face portions of adjacent first and second line electrodes.

Description

technical field [0001] The present invention relates to a radiation image detector which receives radiation representing a radiation image, records the radiation image therein, and outputs a signal proportional to the radiation image recorded therein when scanned with readout light. Background technique [0002] Various types of radiation image detectors have been proposed and put into practical use in medicine and other industrial fields. These detectors generate an electrical charge by receiving radiation transmitted through the object under test and store the charge to record a radiation image of the object under test. [0003] Such a radiation image detector is proposed, for example, in US Patent No. 6,770,901. The detector comprises a layer structure arranged in the following order: a first electrode layer that transmits radiation; a recording photoconductive layer that generates charges by receiving radiation; a charge transport layer that acts as an insulator against...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01T1/24
CPCH01L27/14665H01L31/09H01L31/0216H01L27/14603H01L31/022408
Inventor 今井真二
Owner FUJIFILM CORP
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