Which of the following is created on an image receptor by the arrangement of the detector elements (DELs) into rows and columns?

The correct answer is the matrix, which is created on an image receptor through the arrangement of detector elements (DELs) into rows and columns. In digital radiography, the matrix serves as a framework composed of many small, discrete units known as pixels. Each pixel corresponds to a specific area of the image and captures information about the x-ray exposure in that location.

The structure of the matrix is significant because it determines the spatial resolution of the image. A larger matrix, meaning more rows and columns of pixels, provides finer detail by allowing a greater number of smaller pixels, thereby enhancing the overall quality and clarity of the image. The arrangement of DELs directly influences how the image is reconstructed and displayed, further emphasizing the importance of the matrix in digital imaging systems.

While the pixel grid refers to the individual pixels themselves, and resolution relates to the sharpness and detail of the image as a result of the pixel arrangement, these terms describe elements related to the matrix rather than being the foundational framework created by the arrangement of the DELs. Image data refers to the information collected from the pixel grid but does not specifically denote the structure generated by the arrangement of the detector elements.