Spring 2021 - Rebuilding Photogun
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Other jobs
- Re-align HV chamber before venting? => sent request to Gould
- (done) Repair stalk heater driver => https://logbooks.jlab.org/entry/3871902
Replace cathode electrode
- leak test large grain Nb cathode/ceramic/flange assembly
- fiducialize Nb cathode to 10" flange (old method glued fiducials)
- (maybe) fiducialize existing 10" flange to HV chamber
- vent HV chamber, remove cathode electrode, searching for puck tab
- fiducialize anode to HV chamber
- align cathode to anode
- align LM to cathode (after venting depo)
- align HV to chamber Y and re-align laser for retro-reflection
Replace depo schneedle
- Make (2) SS schneedle w/o silver plating, replace depo chamber silver plated schneedle media:ACC2003000-0219 schneedle.pdf
- NF3 leak value => leave as-is
- align mask, fix w/ two set screws
- replace K source with Alvatec Sb source?
Fix pucks
- Inspect and mic pucks against series 30 series dwg media:JL0047248 PUCK BODY REV A.pdf media:MoPuckMount.docx