Recent Log Entries
Follow-up Re: ABIL tag #3789 on Faraday Cup #1 has been removed
Hall A isolated, on warm return
COMMENT ON Injector Upgrade - Phase 1 Installation (Gun to Chopper)
DecaRad boxes 1&2, cables and GM tube heads have been
removed from the beam line. Locations have been documented
and materials are stored in cabinet marked INJ Lab 4.
Port Server injdigips was connected to switch opsin01sw2 #20.
Port 1 DecaRad1
Port 2 DecaRad2
Port 3
Port 4 DTM 151 Tesla Meter
COMMENT ON PSS Injector Interface Chassis removal
Lock Out and Tag Out of hazards in the Injector segment will be handled under existing ATLIs for this purpose. It covers Gun HVPS and RF zones.
Injector segment PSS system will be powered down for the upgrade of the system.
PSS Interface chassis will be disconnected and removed for the upgrade.
Separate ATLis is used to track the upgrade work.
Task discussed with owner and approved.
COMMENT ON Remove/reinstall Injector bpms 2I01 thru 0I02 in support of Injector Upgrade for 2020 SAD
COMMENT ON Disconnect linac bpms for girder removals
VWien soak ended
The HWien appears to induce a very modest ~0.5 nA vacuum signal increase at VIP0I01 when I tested it last week, with onset +/- 4 kV (note 90 deg is +/- 11 kV), and did NOT scale with voltage. Interestingly, +/- 4 kV is close to the ~27 deg we ran at for months. So, I soaked the VWien at +/- 11 kV (in the POS configuration over the weekend). The vacuum activity I observed was not apparent, see Fig. 1.
So, we're in good shape. Both Wiens are turned OFF in software now, we'll unpower and safe the PS and disconnect HV cables.
Hall A 4k supply isolation
COMMENT ON Injector Harp System - interface controls upgrade (PC104 conversion) 2020 SAD
COMMENT ON Injector Upgrade - Phase 1 Installation (Gun to Chopper)
Day #6, Week2 Day1, Post-830AM Toolbox Meeting, Plan for the
Day:
* Power down Wein system; InjSB + tunnel (Scott/Joe)
* Power down and remove DecaRad system; tunnel (Scott)
* Return gun valve config to "normal"; tunnel (Marcy)
* Dispose of grey mineral oil tank in coordination w/ESH&Q'
InjSB (Carlos/Bubba)
* PSS Kickers and associated chassis removal; InjSB + tunnel
(SSG)
* Laser table disassembly; tunnel (Shukui/Scott)
Other work possibly occurring upstairs in InjSB:
* Harp upgrades @IN03B07 (Dela Cruz)
* Chopper amplifier upgrades, IN01 racks (Farrish)