Example / Vanadium with titanium

Virtual WDS applications: WDS spectral interference.

The vanadium Kα profile and a nearby titanium contribution are displayed separately on PET at 20 kV. Their proximity makes this a useful starting point for examining interference at the analytical peak and the choice of background positions.

How does changing the Ti-to-V concentration ratio change the relative contributions?
Are the proposed background positions clear of the neighboring profile?
How do alternative lines and crystals change the available choices?

Vanadium Kα in black and a nearby titanium contribution in red, with background markers on a PET spectrum at 20 kV. — Separate profiles at 100% reference concentration for each element, not a physical sample composition. The example illustrates spectral proximity; it is not an instrument measurement. View full screenshot

Who uses it

For analytical work and advanced EPMA teaching.

Universities and courses

Build exercises around line excitation, crystal resolution, higher-order interference, and the influence of PHA settings.

Electron-probe facilities

Evaluate candidate analytical lines and backgrounds with users, and document the reasoning behind spectrometer and counting choices.

Commercial labs

Investigate how changing matrix composition affects spectral interferences and background selection for a proposed method.

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