Title:
RADIATION IMAGING DEVICE AND RADIATION IMAGING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2015/005259
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing a radiation imaging device and a radiation imaging system that are capable of minimizing increases in power consumption and of detecting radiation even when the irradiation intensity of the radiation is weak. This radiation imaging device is characterized by comprising: a plurality of conversion elements (201) that are arranged in a matrix and that convert radiation into an electric charge; a plurality of switch elements (202) that output each of signals that are based on the electric charges of the plurality of conversion elements to a plurality of signal lines in row units; bias wiring (Vs) that supplies a bias voltage to the plurality of conversion elements; a readout circuit (103) for reading out the signals of the plurality of signal lines; a current detection unit (108) that detects the start of exposure to radiation on the basis of current that flows in the bias wiring; and a signal detection unit (110) that detects the start of exposure to radiation on the basis of a signal that is read out by the readout circuit.
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Inventors:
RYU TAKUYA (JP)
KAMESHIMA TOSHIO (JP)
YAGI TOMOYUKI (JP)
TAKENAKA KATSURO (JP)
OKADA HIDEYUKI (JP)
SATO SHO (JP)
IWASHITA ATSUSHI (JP)
SATO ERIKO (JP)
KAMESHIMA TOSHIO (JP)
YAGI TOMOYUKI (JP)
TAKENAKA KATSURO (JP)
OKADA HIDEYUKI (JP)
SATO SHO (JP)
IWASHITA ATSUSHI (JP)
SATO ERIKO (JP)
Application Number:
PCT/JP2014/068014
Publication Date:
January 15, 2015
Filing Date:
July 07, 2014
Export Citation:
Assignee:
CANON KK (JP)
International Classes:
H04N5/32; A61B6/00; G01T7/00; H04N5/341; H04N5/374
Foreign References:
| JP2012191599A | 2012-10-04 | |||
| JPH09107503A | 1997-04-22 | |||
| JP2012118312A | 2012-06-21 | |||
| JP2012244607A | 2012-12-10 |
Attorney, Agent or Firm:
ABE Takuma et al. (JP)
Takuma Abe (JP)
Takuma Abe (JP)
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