X-RAY DETECTOR OF A GRID-BASED PHASE-CONTRAST X-RAY DEVICE AND METHOD FOR OPERATING A GRID-BASED PHASE-CONTRAST X-RAY DEVICE

摘要

The invention relates to an x-ray detector of a grid-based phase-contrast x-ray device and to a method for operating a grid-based phase-contrast x-ray device. Signal values of detector elements (3) are combined to form group signal values (6). An image computing unit calculates an x-ray beam phase value from the group signal values (6).