Patent ID: 9551794
Date: 2017-01-24
CPC Classifications: G01N,G01T,H04N

Claim:
1. An X-ray radiation imaging apparatus including a sensor array including a plurality of pixels arranged in a matrix form, a switch element connected to each pixel, and a column signal line common to pixels on each column to which each pixel is connected via the switch element, the X-ray radiation imaging apparatus comprising: a first control unit configured to control reset operation of sequentially removing signals respectively output from a plurality of lines constituting the sensor array; an identifying unit configured to identify a line currently subjected to the reset operation when a start of X-ray radiation irradiation is detected; a second control unit configured to control read operation of reading a signal output from each of the plurality of lines at a timing set in advance for each line upon completion of the X-ray radiation irradiation; an interpolation unit configured to interpolate an image, which is part of an image generated based on signals read by the read operation, and which corresponds to a line identified by the identifying unit, by using images of adjacent lines; a driving circuit which performs control to set the switch element in an ON state and an OFF state for each row; and a detection unit configured to detect X-ray radiation irradiation by monitoring an electrical signal output from the pixel, wherein the first control unit controls the driving circuit to set a switch element on each row in an ON state for a predetermined period, wherein, with a first row, a second row, a third row, and a fourth row arranged in the order named, the first control unit performs control to set switch elements on the first and third rows in an ON state while setting switch elements on the second and fourth rows in an OFF state in a first period and to set switch elements on the second and fourth rows in an ON state while setting the switch elements on the first and third rows in an OFF state in a second period which does not overlap the first period, and wherein the first control unit causes the switch element on a row which is in an ON state when the detection circuit has detected X-ray radiation irradiation to continue an ON state for a period longer than the predetermined period.