Figure 2
Beam trajectories at (xs, ys) = (0, 0) and (3, 2). (a) The incident X-rays are perfectly illuminating the rotation center where symmetric beam trajectories are seen. (b) X-ray beam trajectories for (xs, ys) = (3, 2) show that the X-rays are not perfectly aligned to (xs, ys) = (3, 2) but partly shining on the target point, which confines the X-ray illumination to a small area. Zoom-ins on the completely superposed region for (c) (xs, ys) = (0, 0) and (d) (xs, ys) = (3, 2) are illustrated. |