5.
Enter values (4 significant digit value between 0 and selected energy range
for centroid, energy value for width) in the edit fields, then press Ok.
Normally only the “primary SCA” (SCA number 1) needs to be used during
Amplifier/TCA calibration. The dialog will disappear; the value(s) will be
written to the selected 2016 and MCA memory cleared. If the Apply to all
Amp/TCAs check box was selected, the Amp/TCA and SCA parameter
adjustments will be applied to all channels (2016’s).
Adjust or Calibrate
When you press Ok, you’ll see a screen asking if you need to make more
adjustments or if you’d rather begin the calibration process.
If ADJUST is pressed, you’ll be returned to the screen shown in Figure 8 to
enter more adjustments.
If CALIBRATE is pressed, the values will be permanently stored in a setup
file. You’ll now be presented with the screen in Figure 9, allowing you to
choose the SCA to be used for calibration.
At this time, the software will calculate the energy calibration equation, store
it into the corresponding detector input, and ask you to verify the gain
normalization by looking at the MCA View Control window. Pressing OK
will bring you back to the amplifier selection dialog shown in Figure 7,
allowing you to select another channel (2016).
14
Using the Genie-VMS Software
Figure 8 Calibrating the Selected 2016's SCAs
