Bruker QUANTAX EDS - Sample Coating Correction

User Manual 5 Step-by-Step Guides
68
5.9
Sample Coating Correction
This section describes how to use sample coating correction in two ways:
1. Set an element (e.g. carbon) as coating material and omit the net counts originating from it.
2. Measure a reference coating spectrum and subtract this from measured spectra.
Step
Example/hints
Set an element (e.g. carbon) as
coating material and omit the net
counts of this element in the
quantification process:
1
Clic
k the icon in the bottom left
corner of the
Sample configurator to
open the SAMPLE PROPERTIES dialog.
2
Select option Coating with.
The Select element dialog pops up.
3
Click on an element.
The selected element will be deconvolved
during the qua
ntification, but not quantified
during automatic quantification in
subsequently acquired spectra, line
scans,
and maps.
Acquire a coating correction file of a
coated sample and use this to
subtract from all subsequent
spectrum acquisitions:
4
a spectrum of a coated
sample (as coating reference).
Make sure that the sample does not contain
the same element as the coating material.
5
Perform quantification of the spectrum.
Refer to section 5.12.2.
6
Click on an element in the result list.
7
Click on the
icon.
The Save coating correction data dialog
appears.
8
Save the .ccc file.
This file contains the net counts from the
coating reference sample.
Apply the saved .ccc file for coated
samples
9
Click
the icon in the bottom left
corner of the
Sample configurator to
open the SAMPLE PROPERTIES dialog.
10
Select option Coating correction.
The LOAD COATING CORRECTION DATA
dialog opens.
11
Load the previously saved .ccc file.
Make sure that the coating reference sample
and the unknown sample are coated
identically.