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Figure 12
Typical images of PAM. (a) Spatial encoding: vertical versus horizontal position; time mapping results form an angle between the laser and the X-ray on the sample (2 µm-thick Si3N4). The temporal window (horizontal) is about 3.6 ps. (b) Spectral encoding image: lateral position versus the wavelength mapped to time by a chirped laser pulse collinear with the X-ray perpendicular to the sample (100 µm-thick YAG:Ce). The temporal window (horizontal axis of the image) is about 1.7 ps. Both show a shadow due to the X-ray-induced opacity change of the sample. At t0 both beams are timed. The horizontal edges in (a) result from the upstream partially closed power slits which are not influencing (b).

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
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