The present invention relates to a rotatable X-ray detector. In order to improve clinical workflow, an X-ray detector arrangement (10) is provided that comprises an X-ray detector unit (12) and a rotation unit (14). The X-ray detector unit (12) comprises an X-ray detector (16) with a plurality of X-ray detecting elements arranged as a detector surface (18). The rotation unit (14) is configured to rotate the X-ray detector about an axis (20) perpendicular to the detecting surface (18) at least at a point of intersection with the detector surface (18) upon receiving a rotation signal (22). Further, the rotation signal (22) is dependently ruled by a collimator configuration of an X-ray source arrangement for providing X-ray radiation towards the X-ray detector unit.
