Picture of X-ray Scattering - Small Angle
Current status:
DOWN
Book | Log
Show/Collapse all

You must be logged in to view files.

This instrument combines a X-ray focusing optics with a block collimator which produces an intense, monochromatic primary beam. The primary beam is focused through the sample allowing fast measurements of the scattering pattern, even from samples with low contrast. The scattering signal is detected by a 2D imaging plate detection system, which offers a wide linear dynamic range. The apparatus is implemented with a SAXSess camera using a X-ray generator (PANalytical, PW 3830) with a sealed copper tube. The X-ray generator offers a maximum power of 4.0 kW and an operating range of 20-60 kV and 10-100 mA. A Göbel mirror and a Kratky block collimation system (line-shaped beam) is used to convert the divergent polychromatic X-ray beam into a focused line shaped beam of Cu-Ka radiation. Holders for liquid and solids are available. The instrument design makes it possible to investigate particles length scales from 0.25 nm (thanks to the wide angle extension system) up to 40 nm. Thus, q values range from ≤ 0.077 nm-1 (corresponding to a Bragg value ≥ 82 nm) up to ≈ 8 nm-1 (SAXS) and ≈ 29 nm-1 (SWAXS).

 

The apparatus is typically used in a wide variety of fields such as self-assembling surfactant systems, microemulsions, particle sizing of suspended nano-powders or catalysts (determination of suface per volume) among others.

Tool name:
X-ray Scattering - Small Angle

Instructors

Licensed Users

You must be logged in to view tool modes.