an x - ray system to generate x - ray image data of a predefined volume segment of an examination subject has either an arc - shaped mount or an annular gantry , an x - ray emitter arrangement with multiple x - ray microemitters , an x - ray detector arrangement with multiple x - ray pixels arranged directly adjacent to one another , and a controller to activate the x - ray emitter arrangement and the x - ray detector arrangement . the x - ray emitter arrangement and the x - ray detector are situated opposite one another on the arc - shaped mount or the gantry . the x - ray system is designed for introduction of the examination subject between the x - ray emitter arrangement and the x - ray detector .