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Figure 2
CAD model of the liquid N2 cooled crystal carriage of the HE monochromator. There are two carriages that house the Si(111) and the Si(422)/(533) crystals. The carriage is shown without the crystals so that the beam openings can be seen. The red line shows the white beam passing through the (111) opening and hitting the beam stop. The light blue lines show the diffracted monochromatic beam over the angular range it is possible to access by rotation of the stage. The stage can be translated perpendicular to the white beam to switch between crystals. |