Figure 4
(a) Temperature distribution in the indirectly water-cooled channel-cut monochromator crystal as obtained by finite-element analysis (20° Bragg angle, 160 W mrad−2). The obtained temperature along the center of the crystal [dashed white line in Fig. 4(a)] is depicted in (b), and the resulting slope errors are given in (c). The X-ray beam hits the crystal in the region between the dashed vertical lines. |