Procedures
DOC-M88-EXX157_V17_04.2019 13 / 96
2.4.2 Instruments Without Focusing Monochromator
For instruments without primary beam monochromator the impact of the K
α2
component of the
radiation emitted by the X-ray source has to be taken into account. In order to achieve line in-
tensities as accurate as possible, the complete K
α1, 2
doublet must be used. The determina-
tion of line position and shape has to be performed on K
α1
only; therefore K
α2
has to be
stripped off before calculating both parameters.
Accordingly, the following routine has to be performed:
1. Start EVA and load the .brml/.raw data to be evaluated.
2. Select the Area page and create a new area using the complete measured range. For
PSD use exactly ranges as defined by table 2.4 and table 2.5 in section Measurement
Parameters [}11].
´ Note the following data as displayed in the toolbox:
Line intensity: Net Area
3. Perform a K
α2
stripping. Ensure a properly adjusted K
α1
/K
α2
-ratio to minimize artifacts.
4. Create a new area using the complete measured range. For PSD use exactly ranges as
defined by table 2.4 and table 2.5.
´ Note the following data as displayed in the toolbox:
Line position: Obs. Max
Line shape: FWHM
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