“Boomerang” DCM
![[photo of Boomerang DCM]](/wp-content/themes/default/images/boomrang.gif)
This instrument was designed and built for the University of Western Ontario and was being used at the University of Wisconsin-Madison Synchrotron Radiation Center (SRC) before relocation to CLS. It was delivered to SRC in 1990. It has the best resolution of any DCM of its kind in the world.
Features
- Golovchenko type with boomerang mechanism using optically flat ceramic legs.
- First crystal cooled into water cooled stationary heat sink.
- Second crystal heating
| Bragg angle: | 12° – 72° with smooth motion that will allow data collection while in motion. |
| Beam offset: | 63.5 mm with exit beam above entrance beam. |
| Crystal size: | Crystal size 40 mm long × 50 mm wide × 3 mm thick. |
| Cooling capacity (via liquid cooled substrate): | 150 Watts |
| Crystal adjustment: | while under vacuum |
| UHV construction: | 10-10 Torr |
| Bakeable to: | 150° C (except PZT with 125° C rating) |
| Only one linear motion feedthrough required to operate entire scan mechanism. | |