Figure 3

Statistics of X-ray characteristics of 80 consecutive shots. (a) Average angular X-ray profile and each centroid position (black triangles) of the 80 consecutive shots showing a pointing jitter less than 10% of the average divergence (25.2 × 17.2 mrad2). (b) Photon number (4–15 keV) statistics of the same 80 shots as in Fig. 2d. The standard deviation is 1.8 × 106 photons/shot, corresponding to 16% of the average photon number.