Figure 3
(Top) A single image of all the maximum intensities seen by the camera for the different strip samples and full 300 mm wafer assembly. The centre of the X-ray illuminated area is represented by a red cross and the orange line indicates the position of the line profile extracted below. (Middle) A line profile perpendicular to the crack front. Each peak is due to a single bunch. Space-wise, the exact location of each peak is obtained by a Gaussian fit and indicated by a green triangle. Time-wise, each bunch is 704 ns after the previous one. (Bottom) The evolution of crack front velocity in the X-ray illuminated area, as calculated from the peaks' space–time positions. |