Radiation detection element and radiographic imaging device

a radiographic imaging and detection element technology, applied in the direction of optical radiation measurement, instruments, television systems, etc., can solve the problems of increasing the number of lines, reducing the resolution of grain, and requiring high frame rate, so as to suppress the increase in the size of the device, the effect of improving the resolution

Active Publication Date: 2014-02-20
FUJIFILM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This configuration enables optimal resolution and imaging speed for both still and moving images while minimizing the increase in device size, improving pixel density and frame rate without the need for separate signal lines during moving image capture.

Problems solved by technology

Therefore, in the case of the moving image, a (grainy) resolution may be low but a high frame rate is required.
Accordingly, this technology increases the number of lines and the number of signal detection circuits that process data output from the data lines, and may raise a device size.

Method used

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  • Radiation detection element and radiographic imaging device
  • Radiation detection element and radiographic imaging device
  • Radiation detection element and radiographic imaging device

Examples

Experimental program
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first exemplary embodiment

[0043]Firstly, the schematic configuration of a radiographic imaging system employing a radiographic imaging device according to the first exemplary embodiment will be described. FIG. 1 is a diagram illustrating the schematic configuration of the radiographic imaging system according to the first exemplary embodiment.

[0044]A radiographic imaging system 200 includes a radiation irradiation device 204, a radiographic imaging device 100 including a radiation detection element 10, and a control device 202. The radiation irradiation device 204 irradiates radiation (for example, X-rays) onto a subject of photographing 206. The radiation detection element 10 detects the radiation that is irradiated from the radiation irradiation device 204 and is passed through the subject of photographing 206. The control device 202 instructs the radiographic imaging device 100 to image a radiation image, and acquires the radiation image from the radiographic imaging device 100. At timing based on the con...

second exemplary embodiment

[0074]A radiographic imaging device according to a second exemplary embodiment includes almost the same configuration as the radiographic imaging device 100 according to the first exemplary embodiment. Accordingly, the description of the same portion as that of the first exemplary embodiment will be omitted. In the radiographic imaging device according to the present exemplary embodiment, the configuration of the radiation detection element differs from that of the radiation detection element 10 according to the first exemplary embodiment. Accordingly, the radiation detection element according to the present exemplary embodiment will be described in detail.

[0075]FIG. 4 is a diagram illustrating the schematic configuration of the radiation detection element according to the second exemplary embodiment.

[0076]Similar to the radiation detection element 10 according to the first exemplary embodiment, in a radiation detection element 50 according to the present exemplary embodiment, plura...

third exemplary embodiment

[0091]In a radiographic imaging device according to the third exemplary embodiment, the configuration of the radiation detection element is partially different from the configuration of the radiation detection element 50 according to the second exemplary embodiment. Accordingly, the radiation detection element according to the present exemplary embodiment will be described in detail. The description of the configuration and the operation that are the same as those of the second exemplary embodiment will be omitted.

[0092]FIG. 6 illustrates the schematic configuration of the radiation detection element according to the third exemplary embodiment. In the present exemplary embodiment, the control line M1 to which the pixels 20 of the four rows are connected, is provided. The control line M1 is connected to the scan signal control circuit 104 through one external connection terminal 12. Meanwhile, in the present exemplary embodiment, as illustrated in FIG. 6, the radiation detection elem...

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Abstract

The present invention provides a radiation detection element and a radiographic imaging device that may provide optimal resolution that corresponds to the purpose of imaging and to imaging speed, and that may suppress increase in device size. Namely, TFTs of plural pixels in a column direction are connected to the same signal lines. When a moving image is imaged, a control signal is output via a control line, the TFTs of the pixels are turned on, and the charges are read-out from sensor sections. Since the two pixels×two pixels are operated as one pixel and the charges are extracted, resolution may be lowered when compared with a still image and a frame rate may be improved.

Description

CROSS-REFERENCE TO RELATED APPLICATION[0001]This application claims priority under 35 USC 120 from U.S. application Ser. No. 13 / 306,990, filed on Nov. 30, 2011, the disclosure of which is incorporated by reference herein. This application also claims priority under 35 USC 119 from Japanese Patent Application No. 2010-267592, filed on Nov. 30, 2010, and No. 2010-181699, filed on Aug. 23, 2011, the disclosures of which are incorporated by reference herein.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The present invention relates to a radiation detection element and a radiographic imaging device. Specifically, the present invention relates to a radiation detection element and a radiographic imaging device for imaging a medical radiation image.[0004]2. Description of the Related Art[0005]In recent years, a radiographic imaging device that images a radiation image for medical diagnoses, has been known. The radiographic imaging device detects radiation that is irradiate...

Claims

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Application Information

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Patent Type & AuthorityApplications(United States)
IPC IPC(8): G01T1/16H04N25/42
CPCG01T1/16H04N23/30H04N25/779H04N5/32H04N25/74
InventorOKADA, YOSHIHIRO
OwnerFUJIFILM CORP