RADIATION IMAGING APPARATUS, RADIATION IMAGING SYSTEM, AND CONTROL METHOD FOR RADIATION IMAGING APPARATUS

摘要

A radiation imaging apparatus includes a plurality of pixels, each of which includes a conversion element and a transistor, a plurality of drive lines connected to gates of the transistors, a drive circuit unit configured to supply a voltage to the plurality of drive lines, and a control unit configured to control the drive circuit unit. The control unit performs control of causing the drive circuit unit to apply a different voltage that is between the OFF voltage and the ON voltage and is different from the OFF voltage and the ON voltage to the plurality of drive lines in a different period different from a period in which storage control is performed and a period in which read control is performed.

主权项

1. A radiation imaging apparatus comprising:
a plurality of pixels arranged in a form of a matrix and configured to generate an electrical signal corresponding to radiation, each of the plurality of pixels including a conversion element and a transistor; a plurality of drive lines electrically connected to gates of the transistors of the plurality of pixels; a drive circuit unit configured to supply a voltage to the plurality of drive lines to drive the plurality of pixels; and a control unit configured to control the drive circuit unit, wherein the control unit performs storage control of causing the drive circuit unit to apply an OFF voltage, for turning off the transistor, to the plurality of drive lines, so that the electrical signal is stored in each of the plurality of pixels, read control of causing the drive circuit unit to apply an ON voltage, for turning on the transistor, sequentially to the plurality of drive lines, so that the electrical signal is read from each of the plurality of pixels, and control of causing the drive circuit unit to apply a different voltage that is between the OFF voltage and the ON voltage and is different from the OFF voltage and the ON voltage to the plurality of drive lines in a different period different from a period in which the storage control is performed and a period in which the read control is performed.