Table of Contents
Advertisement
Maintenance
Reassembling the Deuterium Lamp Assembly
Next you will put the deuterium lamp assembly back into the instrument.
1. Plug in the lamp cable.
2. Gently set the deuterium lamp plate assembly back into place in the instrument.
3. Reinstall the 4 Phillips head screws into the plate and tighten down the cover.
Reassembly is complete. Next you may have to align the deuterium lamp.
Aligning Deuterium Lamp
Figure 9-19 Location of the alignment screws of the deuterium lamp.
1. Set up the standard conditions for copper (including slit).
2. Go to BG mode (background corrected-AA), and after warming the lamp for several
minutes.
3. Adjust the alignment screws (Figure 9-19) to obtain maximum energy/counts.
4. Place a white card in the center of the sample compartment and note the positions of the
beams from the deuterium lamp and the Hollow Cathode Lamp. To complete the peaking
procedure, if the beams are not coincident (the same centers), tweak the alignment screws
to center the Hollow Cathode Lamp beam inside the deuterium arc lamp beam. The next
figure illustrates the "ideal" appearance of the two beams.
9-54
Advertisement
Table of Contents
Troubleshooting
