Coating Thickness Software for Eagle µ-EDXRF Systems

6.1.2 FunMaster Step 2/3 (Multi-Layer: Au/Pd/Ni/Cu base)
After continuing to step 2, the “Define layer elements/composition” window appears, with the appropriate
layers illustrated. As with the single-layer application, define the elements for each layer. Clicking on
or reveals the Periodic Chart to define the relevant elements.
In this example, the layer elements are Au on Pd on Ni and the base element is just Cu. The
button shown below in Figure 42 enables other significant elements that may be present in the base
material (e.g. in the case of alloys such as brass, stainless steel, etc). Click “OK” when done.
Figure 42a - Default box for layer definition
Figure 42b - Example of completed multi-layer box
In Figure 42b, the acquisition conditions and parameters defined in the previous “Edit(FUNOFFL.INI)” and
the “Define measurement conditions and layer systems” box are displayed on the left side (circled in red).
If the appropriate scatter spectrum had not been identified in the first step, this will be indicated by the traffic
lights at the bottom left of the step 2 window being in the red-alert state .
Be sure that the left-hand traffic light icon is green:
When the system’s scatter spectrum has not been measured and identified, the calibration will refer to a
default spectrum supplied with the software.
As previously explained, the “Measure range limitations” option in the bottom
right corner is activated by clicking the check box. This can be optionally used
when a minimum and maximum range is known for the layer/s. It is most
useful in multi-layers. Defining a thickness range simplifies and improves the
accuracy of the FP calibration routine.
In the “Preselections” region, set the appropriate acquisition time (i.e. 120sec). The [%]
value defines the maximum relative error tolerated in the thickness calculation per unit
change in intensity. Default value is 5%.
Also, define which Recalibration mode is to be used. Default is “standard,”
unless thin layers or a complex calibration with many (5) references is
involved. Refer to pg. 37 for further information.
Click the
button for the third and final stage of FunMaster.
6.1 Procedures in FunMaster (ex. Au/Pd/Ni/Cu base) 46