Difference between revisions of "GTS meeting 4 12 21"

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* Prep Chamber: (Mamun)- '''''Completed''''' [https://logbooks.jlab.org/entry/3869663]
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* Prep Chamber: (Mamun)
** Fix Transverse Manipulator
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** Remove Cs/K source
** Fix Sb boat
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** Add K source
** Clean Sb pellets off chamber
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** Clean/check Bottom Heater
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** Add Cs for Robust Photocathode research
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** Clean/replace windows
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** Add pucks with Moly and GaAs (Robust Photocathode) substrates
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** Add Oxygen
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Remove Cs/K source
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Add K source
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Revision as of 09:10, 12 April 2021

  • Upgrade Glassman Gun PSS interlock chassis (Scott)
  • Add vacuum interlock to HV supply (Scott)
Plan B: Install Spellman 225 kV power supply. Did not work because we could not establish remote communication - [1]
Plan C: Install spare Spellman 225 kV power supply ( 225 kV, 5 mA). Now at UITF, to be moved to GTS 


  • Beamline - no bake of beamline: (Mamun and Bubba)
    • Replace YAG screens on Viewers 1, 2 and 3
    • Replace leaky right-angle valve
    • Check ion-trap Gun spool
    • Remove Deflecting Cavity and move TE_011 Cavity in its place


  • Prep Chamber: (Mamun)
    • Remove Cs/K source
    • Add K source


  • Gun HV Chamber: (Carlos)
    • Replace Anode
    • Replace Pierce geometry
    • Upgrade anode HV bias feed-through to 5/10 (?) kV


  • Laser: (Shukui)
    • Re-install 500 MHz green fiber laser
    • Install new pulse laser