Rocking curve monochromator crystal

Figure 5.12 (a) Schematic drawing of the thermal distortions of a monochromator crystal subject to high heat loads from synchrotron beams. (b) Comparison of the rocking curves for the second crystal in a two crystal monochromator when the first crystal is cooled only at the side, for different CHESS electron beam currents and a six-pole electromagnetic wiggler. From Smither et al (1989) with permission. 

---