Figure 2
Diagram of the first crystal of the I12 monochromator, assuming that the crystal is indirectly cooled by a liquid-nitrogen current close to its sides. The incident beam actually strikes the center of the crystal, but only the back half of the crystal is shown here. The region in which the incident beam strikes the crystal is shown by the volume markings on the forward end. The slanted planes drawn within the crystal volume indicate the reflecting (111) atomic planes. |