Inhalt des Dokuments
X-ray emission spectrometer
- With the X-ray emission spectrometer chemical speciation of bulk samples is possible.
- © AG Kanngießer
X-ray Emission spectrometer for chemical speciation in von Hamos geometry. The dispersive element is a full cylinder HAPG crystal  with high integrated reflectivity. The good efficiency of the optic allows the measurement of the Kß and Valence-to-Core (VtC) transitions of diluted samples in the laboratory.
research project: Chemical speciation with hard X-rays: XAS and XES 
|Resolving Power: E/ΔE =
range: 3600 - 16000 eV in first oder of reflection, 7200 -
32000 eV in second order|
|Efficiency: Highly energy
dependent and sample specific, for more details go to the research
• 10 µm / 1 µm solid Ti sample: 10000 / 1900 ph/s in the Kβ mainline
• 10 µm / 1 µm solid Cu sample: 6000 / 5000 ph/s in the Kβ mainline (K-M2,K-M3)
Solid and liquid, minimal sample amount for powder samples 1
|Exitation: 50 W tungsten microfocus x-ray
tube combined with a 20 µm focusing polycapillary