X-ray detector with rectangular pixels

An x-ray imaging system, comprising:

• a photosensor pixel array of a flat panel detector comprising a plurality of pixels with a rectangular pixel pitch, wherein the plurality of pixels are arranged in pairs and each of the plurality of pixels is configured to generate respective image data signals via a thin film transistor (TFT), a TFT control line, and a data read out line, wherein in low-dose applications, TFT control lines of pixels in each pixel pair are energized simultaneously to generate the respective image data signals with a first effective pixel pitch of twice the rectangular pixel pitch and in high-dose applications, TFT control lines of pixels in each pixel pair are energized sequentially to generate the respective image data signals with the rectangular pixel pitch;
• and
• a controller coupled to said photosensor pixel array so as to receive the respective image data signals generated by the plurality of pixels, wherein, in the high-dose applications, the controller is configured to translate the flat panel detector between a first position and a second position to generate two image data signals for each pixel of the plurality of pixels and the controller is configured to combine the two image data signals to generate image data signals with a second effective pixel pitch of half the rectangular pixel pitch.