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Patent Searching and Data


Title:
RADIATION IMAGING DEVICE AND RADIATION IMAGING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2019/039109
Kind Code:
A1
Abstract:
This radiation imaging device is provided with: an imaging unit including a plurality of pixels; and a control unit. Each of the plurality of pixels includes a conversion unit for generating an image signal corresponding to incident radiation, and a sample hold circuit for holding the image signal generated by the conversion unit. The control unit causes the imaging unit to perform a first imaging for generating one energy subtraction image and a second imaging performed after the first imaging, and controls, according to preset irradiation conditions for radiation, the timing at which the sample hold circuit samples a first image signal in the first imaging and the timing at which the sample hold circuit samples a second image signal in the second imaging such that the difference between the amount of noise included in the first image signal acquired by the first imaging and the amount of noise included in the second image signal acquired by the second imaging is reduced.

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Inventors:
TORII SOTA (JP)
TERUI KOSUKE (JP)
TSUKUDA AKIRA (JP)
IWASHITA ATSUSHI (JP)
Application Number:
PCT/JP2018/025492
Publication Date:
February 28, 2019
Filing Date:
July 05, 2018
Export Citation:
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Assignee:
CANON KK (JP)
International Classes:
A61B6/00
Foreign References:
JPS6349142A1988-03-01
JP2007000407A2007-01-11
JP2009504221A2009-02-05
JP2017162693A2017-09-14
Other References:
See also references of EP 3673805A4
Attorney, Agent or Firm:
OHTSUKA, Yasunori et al. (JP)
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