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If X-rays have not been turned on in longer than 24 hours you must turn on tube conditioning to avoid damaging the X-ray tube. In D4 Tools select the icon with the computer and plug. This connects the program to the instrument. Click on the X-RAY generator green button on the status screen, this will show the screen in Figure 31. Or Select "X-RAY" under the Instrument tree. Then select Utilities -> X-Ray Utilities -> Tube Conditioning ON/OFF (Figure 31). The "X-RAY" screen also shows the "Cooling water flow" rate (L/Min) for reference.
Figure 31. D4 Tools X-ray subtree window. (A) X-ray subtree button (B) Utilities command (C) Standing kV and mA
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After about a minute the kV will start to increase in increments from 20kV to 55kV. The whole program takes about one hour and when kV returns to 20 the program is complete. Once this is finished, select the 'Tube Conditioning ON/OFF' again. Note the operational status on the maintenance spreadsheet posted in the lab. To do this click on Manual Control (small head icon) and type GS11. The resulting GS number is the status number. Record this value in the X-ray Tube Conditioning Log.
Turning off the D4 and HASKRIS
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The Beam Optics settings lists the Divergence Slit and AntiScattering Slit (Figure 39). Both of these are constant values based on our hardware setup. The Divergence Slit should be set to .300° (0.6mm). Click "OK" and you will have finished all the settings and will loop back to the first window.
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Figure 39. Beam Optics window.
Save As the file under a new name to the path Local Disk C: > DIFFDAT1. You can print this file by clicking the "Report" tab at the top the subtree window and then clicking the print icon. Occasionally scientists will ask for a printout of the settings to put in their reports.
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