P452 – White beam Slits VMXm DLS
Application
White beam slits for soft X-ray synchrotron radiation
Year of delivery
2016
Installation site
Beamline VMXm at Diamond Light Source, Didcot, United Kingdom
Design Features
- Vertically and horizontally defining slit blades.
- Motorized and encoded opening; independent translation of the slit blades.
- Tungsten slit blades.
-
Actively cooled OFHC absorber blocks attached to all slit blades.
- Temperature sensor available at each blade.
- Adjustable support structure
Performance Features
- Power density: 60 W /mm2.
- Total absorbed power: 2 kW in 13 x 13 mm2 area.
Outer Dimensions
Technical specifications and performance values
General
Vacuum chamber
Chamber type
cylindrical, horizontal axis
Material
1.4301
Base pressure
10-10 mbar range
Primary slits
Slit blades
Material
Tungsten (water cooled)
Straightness
< 0.10 µm over 10 mm
Roughness
< 2 µm over 10 mm
Parallelism
5 µm over 10 mm
Slit blades translation
Range
-7 mm to 7 mm
Repeatability
< 10 µm
Resolution (design value)
0.006 µm /motor fine step
(1/16, recommended)
0.05 µm /encoder count
Performance Test Results
Residual gas analysis
