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![[Figure 1]](gf5033fig1mag.jpg)
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Figure 1
Schematic layout for a typical pump–probe experiment. A mechanical chopper/shutter system is used to isolate single X-ray pulses from the storage ring. The laser beam is oriented orthogonal to the X-ray beam and intersects the crystal at the center of the goniometer rotation. For each crystal orientation, X-ray pulses probe a ∼60–80 µm-deep layer of the crystal on the laser-illuminated side in order to match the typical laser penetration depth. A MAR165 CCD detector records the diffracted X-rays. Typical laser and X-ray beam dimensions are shown in the inset. The vertical size of the X-ray beam can be increased from the 20 µm minimum (shown) to whatever size is necessary to match the laser penetration depth. |
![[Figure 1]](gf5033fig1.jpg)
 | JOURNAL OF SYNCHROTRON RADIATION |
ISSN: 1600-5775
