AES Alignment Routine for Surveys when using an Analog Multiplier Supply

The following procedure determines the correct multiplier voltage when you are using an analog (for example, 20-075) multiplier supply to acquire an AES survey.

  1. Select the New Alignment command from the Acquisition menu, or click on the New Alignment button in the main toolbar.

  2. Set the Upper Limit and Lower Limit energy settings in the Alignment Settings dialog box to sweep the last 100eV of the region. For example, if you are acquiring a survey from 30 to 1030eV, enter 930 as the Lower Limit and 1030 as the Upper Limit.

  3. Click on the Acquire button.

  4. Increase the multiplier voltage until you have 80% to 90% of the maximum allowable signal for your V/F preamplifier . This is the multiplier voltage your system will use to acquire a survey. Continue with the procedure for acquiring an AES survey.