Difference between revisions of "Spring 2021 - Rebuilding Photogun"

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:*"old" existing electrode here : https://wiki.jlab.org/ciswiki/index.php/CIS-ASY-R28-3
 
:*"old" existing electrode here : https://wiki.jlab.org/ciswiki/index.php/CIS-ASY-R28-3
 
:*"new" niobium electrode here : https://wiki.jlab.org/ciswiki/index.php/CIS-ASY-R28-1
 
:*"new" niobium electrode here : https://wiki.jlab.org/ciswiki/index.php/CIS-ASY-R28-1
* leak test large grain Nb cathode/ceramic/flange assembly : << carlos' logbook entry goes here >>
+
* leak test large grain Nb cathode/ceramic/flange assembly : 4/8 Leak check good, cathode assembly to S&A for fiducials
 
* S&A jobs (will walk with Chris Gould 4/7 @ 9am UITF)
 
* S&A jobs (will walk with Chris Gould 4/7 @ 9am UITF)
 
:*fiducialize Nb cathode to 10" flange (old method glued fiducials)
 
:*fiducialize Nb cathode to 10" flange (old method glued fiducials)

Revision as of 10:26, 8 April 2021

HV chamber : Replace cathode electrode

  • Electrodes
  • leak test large grain Nb cathode/ceramic/flange assembly : 4/8 Leak check good, cathode assembly to S&A for fiducials
  • S&A jobs (will walk with Chris Gould 4/7 @ 9am UITF)
  • fiducialize Nb cathode to 10" flange (old method glued fiducials)
  • (maybe) fiducialize existing 10" flange to HV chamber
  • fiducialize anode to HV chamber
  • align cathode to anode
  • align LM to cathode (after venting depo)
  • align HV to chamber Y
  • re-align laser for retro-reflection
  • vent HV chamber, remove cathode electrode, searching for puck tab

Depo chamber : Replace schneedle, fix pucks, opportunistic jobs

Other jobs