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Spring 2021 - Rebuilding Photogun

1. Re-align gun before venting?

2. Vent gun, fiducialize anode

3. Fiducialize Nb cathode, align cathode (to anode), LM to cathode, fiducialize HV chamber, align chamber Y, re-align laser

4. Find missing puck tab in HV chamber

5. Make (2) SS schneedle w/o silver plating, replace depo chamber silver plated schneedle

media:ACC2003000-0219 schneedle.pdf

6. Leave leak valve as-is => done

7. Align mask, fix w/ two set screws

8. Replace K source with Alvatec Sb source?

9. Repair stalk heater driver =>