Bruker QUANTAX EDS, User Manual, Page: 66 / 119

User Manual 5 Step-by-Step Guides
66
4e
Use the icon for Automatic scaling
(spectrum fills display area)
4f
Use the icon to zoom in the
spectrum window.
Set a rectangle by holding the left mouse key
to zoom into the area of interest.
5
Use the icon or right click on the
spectrum chart and select
Properties…
to
change Spectrum display properties.
To normalize multiple spectra for comparison,
select Individual scaling and Automatic and
select an energy region with right mouse
button.
6
Click next to the x-axis dimension.
Toggle between energy (keV) and channel.
7
Click next to the y-axis dimension.
Toggle between cps/eV or channel and
pulse/eV or channel.
8 Right click on the x or y scale bar. Adjusting the x and y scaling.
9 Double click on a spectrum in the
spectrum list to access Spectrum
properties (Results, Sample info,
Detector, Parameter, and Spectrum).
Quantification results, sample info, detector
(detector parameters), parameter (Acquisition
parameters), spectrum (Energy calibration
data) can be here retrieved.
10
Click the icon to select the desired
operator.
The SPECTRA ARITHMETIC dialog opens.
Available from the dropdown list are sum,
absolute difference, relative difference,
quotient, maximum and minimum. The
resulting spectrum will be added to the
spectra list.
11
Click the icon to select or de-select
an element.
Any element can be selected or de-selected
just by clicking the according symbol.
12
Select the tab in the
periodic table.
The Finder option supports the identification
of unknown peaks in the spectrum. Place the
spectrum cursor over the center of a peak
or highlight the peak range by dragging the
cursor with pressed right mouse button to
display a list of all possible elements. The first
element of this list is that one with the
highest probability of actually being present in
the sample.
13 Highlight a region in the spectrum (by
dragging the spectrum cursor with the
right mouse button pressed) and select a
free region (F1-F8).
Up to 8 spectral regions can be assigned to
monitor non-analytical peaks or background
levels.
14
Click the icon on the right side of
the spectrum chart and choose the
location where the reference spectra are
located. Then click
.
SEARCHING FOR SIMILAR SPECTRA dialog
opens. Found spectra will be added to the
spectrum list in the dialog. Use the sensitivity
slider (cross correlation factor) to optimize
search results.
15
Use the spectrum chart icon to
select Add to project in the
Element
selection
section.
Add the element selection to the project.