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  1. From the Data Collector window, click on the three-line icon (hamburger/stack of pancakes button) in the upper right hand part of the window → WebGe
  2. A new tab will open up on your browser which has the WebGe interface:
  3. In the “Statistics” box on the left of the screen, press “Count All”. Look at the ICR values being reported. If they are too high (>80 k on average), decrease the beam size or move the detector farther back.
  4. Check for previously saved SCA files for the element you are measuring. Access saved SCA files by clicking the hamburger button → File → Open SCA. You or your research group may already have SCA files in the User folder. If not, select Master and search the filenames for the most recent SCA for your element of interest.
  5. At the bottom of the page, enter the element of interest to view its alpha and beta fluorescence energies.
  6. In the “Detector Geometry” box, select the element you want to window (1-30).
  7. At the top open the shutter. In the “MCA Control” box, press start. You should see the full spectrum in the bottom graph. Click and drag to zoom in on a certain portion in the larger graph. You may be able to see several peaks: Kalpha, Kbeta, scattered beam, harmonic of scattered beam.
  8. Zoom in on the Kalpha and Kbeta peaks. Introduce a window by checking the box next to SCA 1, in the “SCA Control” box. The window is defined by its energy center and width. Note: Select “AntiCoinc” at the bottom to see how the window is cutting out the fluorescent signal. Select “Coinc” to see just the signal within the window. It is generally most useful to window in AntiCoinc mode.
  9. Adjust the window center and width on the SCA 1 channel. You want the window to cut out the region slightly to the left of the center of the Kalpha peak.
    *** Elements in detector geometry will turn red if ICRs are too high. If you notice this, make adjustments either to detector distance or beam size to lower the ICR values.
  10. Continue adjusting windows for each element (Step 9).
  11. When finished, go to the triple bars () at the top right → File →  Save SCA →  Save the file name (usually something like: [Metal]_MonthYear.sca). Save to User and to Master.
  12. The Ge detector should be windowed for each element of interest in your samples. Do the windowing procedure before loading you sample into the cryostat.
  13. When finished windowing, Open the window file to ensure that it is active (Triple bars → File → Open SCA)

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