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![[Figure 2]](yi5103fig2mag.jpg)
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Figure 2
Side view and laser beam path in the diffraction chamber. The sample is mounted inside a vacuum chamber on a cryogenically cooled sample holder attached to the three-circle goniometer; the detector is mounted on the 2θ arm moving outside of the evacuated chamber (not shown here). The pump laser is coupled into the chamber through a quartz window attached to the evacuated beam tube. The last lens is motorized and used for the optimization of the spatial overlap of X-ray and laser spot on the sample (lenv, lenh); the laser spot size on the sample is adjusted by the movement of the second lens (lenf). A power meter and beam profiler allow to monitor the laser beam parameters. The laser and the X-ray beams have an angular offset of ∼2°. |
![[Figure 2]](yi5103fig2.jpg)
 | JOURNAL OF SYNCHROTRON RADIATION |
ISSN: 1600-5775
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