Difference between revisions of "Ion Pump Power Supplies"

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Let's meet on Wednesday from 3-4pm in TL-1227 to discuss possible CEBAF injector vacuum upgrades.
 
  
;Overview
 
:Injector Upgrade - Gun through Quarter, maybe through FC2 gate is being rebuilt
 
:Timeline/Opportunities - SAD (Aug-Oct, 2019), Upgrade (May 6, 2020 ... for 6 months)
 
:Review Marcy/Daniel survey of injector IP power supplies [[media:190220_IP_Summary.xlsx]]
 
 
;Existing Power Supplies
 
:John's serial UHV work => unique design (low power 100uA, have interlock option, digital comm for readback, HV set, interlock limit?)
 
:Digitel supplies work => aging, poor resolution (high power mA, many ganged pumps, analog ADC readback, interlock limit boxes?)
 
 
;IP PS Upgrade Considerations
 
:Ion pumps
 
:: Provide holding voltage with nA or uA curren
 
:: Provide starting current of X uA?
 
:: Independence (Adjust HV set on any IP, monitor current on any IP, interlock any IP)
 
:: Still require some high power supplies available for bakes, activation, readback helpful, interlock probably not necessary
 
:Power supplies
 
::Gamma SPC => experience in rest of machine, nA resolution, EPICSs
 
::INC UHV => INC own/evolve design?, used at UITF, sub-nA resolution
 

Latest revision as of 13:29, 27 August 2020