Difference between revisions of "GTS meeting 5 02 17"
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# [https://logbooks.jlab.org/entry/3471482 ion collectors and anode current] | # [https://logbooks.jlab.org/entry/3471482 ion collectors and anode current] | ||
# [https://logbooks.jlab.org/entry/3471521 The downstream ion collector was wired incorrectly] | # [https://logbooks.jlab.org/entry/3471521 The downstream ion collector was wired incorrectly] | ||
| + | # Cornell PRAB paper on ion clearing electrodes: [[Media:Cornell ion colelctors PhysRevAccelBeams.19.034201.pdf]] | ||
Revision as of 12:52, 1 May 2017
- Beta Calculations: media:Sajini_April2017_Beta_calculations.pdf
- Attempts to run at 1 mA:
- Ran for few seconds before a HV arc. QE dropped by a factor of 2.
- Ran again for 1.5 hours (with ion-precipitators on) before a HV arc. QE dropped by another factor of 2.
- ion collectors and anode current
- The downstream ion collector was wired incorrectly
- Cornell PRAB paper on ion clearing electrodes: Media:Cornell ion colelctors PhysRevAccelBeams.19.034201.pdf
- Down Monday - Wednesday to:
- Degas dump with NEGS at 25% on for ion pumps to take vacuum load
- Replace ND filter from ND1 to ND3
- Re-activate photocathode with 3 mm active area
- Instrument wire scanner
- Install WiFi access station and enable JMenu on PC in GTS cave
- Why is Dump/FC reading -20 nA?
- Hi-pot VIPGT06
- SCAM VL frequency is not 60 Hz?