LYNXEYE XE Detector User Manual
DOC-M88-EXX240 V1 – 03.2014 3-5
Figure 3.3: Example of measurement parameters for DISCRIMINATOR scan
5. Start value, Stop value: when doing a DISCRIMINATOR scan the measuring unit is V. There are
no default settings for the LYNXEYE XE. Approximate range for different tube materials is given in
Table 6.2 and Table 6.3:
6. Time and Increment: Enter the scan time and increment here. LYNXEYE XE operation uses se-
conds per step, the smallest increment is 0.002V.
7. Start, Stop: Use these buttons to begin or end an immediate measurement.
3.4.2 Determine Optimized Discriminator Settings
Figure 3.4 shows an example of a DISCRIMINATOR scan on a PMMA sample using Cu radiation. The
black line is measured with Veto=0.04V (recommended setting for this detector mode), the blue line
uses Veto=0.51V and shows the influence of this parameter.
To determine the different discriminator levels move with the cursor along the scan. The x value of the
cursor position (in V) is shown in the bottom line of the DIFFRAC.COMMANDER window.
The values for the lower level and the window width can be checked and modified in the Settings tab.
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