FISCHER FISCHERSCOPE X-RAY 5000 Series, Operator'S Manual

Page: 116 / 188

116 FISCHERSCOPE
®
X-RAY
Def.MA Entering Compensation Spectra

Compensation Elements
In the area Compensation Elements you can enter up to four elements. The
entered compensation elements are filtered out of the spectrum. If the relevant ele-
ment area not shown in the list field, check
full Element list .
Example tin on glass: The glass contains Strontium (Sr) in variable concentration.
If you enter Sr as compensation element, the spectral lines caused by Sr are fil-
tered out. The variable amount of Sr does not influence the measurement reading.

Compensation Spectrum
If a suitable compensation spectrum is available, you can activate the option yes
in the in the area Compensation Spectrum and enter a name for the spectrum, e. g.
glass or plastics. At a later moment during the calibration you will be prompted to
position the compensation spectrum. The name entered here will then be dis-
played.
Example tin on glass: The glass causes a scattering spectrum (also referred to as
background spectrum or base spectrum). If a sample is available that is compara-
ble with the specimen and has no tin coating, you can enter here
glass . At a later
moment during the calibration you will be prompted to position the glass sample.
WinFTM measures then the compensation spectrum and takes it into account
when evaluating the spectrum.

Base Spectrum
If a suitable base spectrum is available, you can activate the option yes in the in
the area Compensation Spectrum and enter a name for the spectrum, e. g. glass
or plastics. At a later moment during the calibration you will be prompted to position
the base spectrum. The name entered here will then be displayed.

Background correction
If the theoretical characteristics (measured or calculated) of the compensation
spectrum differs from the actual characteristics, you can reach a correction by
using this option. You can choose from three options: no correction, with supporting
points and by polynomial.
5. To close the window Spectrum Background click OK .
6. To close the window Definition of measuring conditions... click OK .
What you can do next
You can create a new product based on the created Def.MA, see Chap. 7.2 on Page 41.