Optics hutch

Splitter and mirror vessels

In the splitter vessel there is a tungsten plate with two holes. BM26 receives 9 mrad of the radiation fan. The tungsten absorber "splits" this up in 2 + 5 + 2 mrad. The central part is cooled away and the remaining parts define BM26A and BM26B.

Splitter vessel

Mirror vessel

Sagittal focusing monochromator

BM26A has a double-crystal monochromator with sagittal focusing on the second crystal. The first crystal is water cooled and the second crystal is mounted on a bender as illustrated in the pictures.

		Photo: ARTECHNIQUE