Radiation detection apparatus, control method thereof, and radiation imaging apparatus

Radiation detection apparatus, control method thereof, and radiation imaging apparatus

  • CN 105,266,832 B
  • Filed: 06/30/2015
  • Issued: 07/23/2021
  • Est. Priority Date: 06/30/2014
  • Status: Active Grant
First Claim
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1. A radiation detecting apparatus comprising:

  • a plurality of pixels for obtaining radiographic image data based on charges corresponding to radiation irradiated from a radiation generator by radiography;

    a bias power supply for supplying a bias voltage to G electrodes of photoelectric conversion elements of the plurality of pixels via bias wirings;

    a control unit configured to perform control for radiation imaging on the plurality of pixels;

    a sensing unit for sensing whether the radiation is detected based on at least one of information based on information indicating a change in the bias current flowing in the bias wiring, which is obtained from the plurality of pixels and corresponds to the dose of the radiation, and information obtained from a radiation sensing sensor provided separately from the plurality of pixels; and

    a communication unit for receiving a control signal from a controller that controls the radiation detection apparatus in response to the control signal being transmitted from the controller,wherein the sensing unit switches a detection capability of detecting the radiation to a first detection capability higher than a detection capability in other periods of time and maintains the first detection capability until the radiation is detected based on the information, in a case where it is confirmed that preparation for radiographic imaging for the control of the radiographic imaging is completed,wherein the sensing unit switches the detection capability to a second detection capability lower than the first detection capability and maintains the second detection capability until confirmation of completion of preparation for the radiographic imaging is confirmed in a case where an instruction to start detection preparation for the radiation detection apparatus is confirmed based on the control signal received by the communication unit, andwherein the control unit accumulates charges on the plurality of pixels according to the sensing.

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