Figure 3
Reciprocal space mapping set-up at the G2 station. A 0.1% bandwidth slice of the intense beam from the G-line 50-pole wiggler and multilayer monochromator is deflected into the G2 station by a Be single-crystal beam splitter. The incident beam is collimated vertically by slits S1 and S2, while the full horizontal beam width of about 5 mm is accepted. The horizontal diffractometer has a motorized sample height stage to precisely align the sample surface into the beam. The scattered beam is detected by a linear gas detector after passing a Soller collimator. Collimator and detector have matching apertures of 8 mm horizontal by 100 mm vertical. |