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iocsoftinj9 restoration failed
iocsoftinj1 restored
iocsoftRadNDXNL23 restoration failed
iocsofthrtbt restored
iocsoftinj7 restored
iocsoftmag restored
iocsoftheflow restored
COMMENT ON Replace Exterior Door Bldg 99
COMMENT ON Vacuum Work associated with IHA0L03, IHA0L10 and IHA1A21
Injector: IHA0L03 Leak Check = Good; IHA0L10 Leak Check= Good, VDP0L03 and VDP0L10 NEG Activation's on Hold the VDP Activation Cart has Two Circuit Breakers that are Broken and is needing repair; Electrical Group will assess and get New Breakers and Fix. EPAS: JLab-PTW-6751 rev 1 on Issue
COMMENT ON N/S Access Power Supply Rooms Cooling Upgrades
Colonial Webb is ahead of schedule and will move to the South Access at the beginning of next week. DC Power has agreed to allow Colonial Webb to work in both buildings concurrently. The insulation contractor will begin work in the North Access tomorrow and transition into the South Access by the end of next week. Construction is now on track to be completed before the end of the month.
Gun HVPS tank SF6 75 PSIG relieve valve swap: Tank topped to 60 PSIG
With the remaining SF6 in the DILO storage cylinder, we topped off the gun HVPS SF6 tank to ~60 PSIG. See Figure 1. Figure 2 shows the HVPS tank pressure during the entire process.
The SF6 relief valve replacement job is complete.
The reminder action item is to schedule a field inspection by a pressure systems Design Authority (Matt Marchlik). Upon inspection , the DA fills PS-4 and PS-5 and submits these to Jenord Alston, who submits final report to close the CATS item on the CEBAF gun HVPS SF6 tank relief valve certification.
COMPLETED Building 53-Laser Room Access Control Addition
COMMENT ON Building 53-Laser Room Access Control Addition
C100 external probe attenuator discrepancies
Michael and I went through all the C100 style zones to look at the physical attenuators on the probe channel and the corresponding values in the EPICS and found the following discrepancies
2L22
cav 7 physical value 3, EPICS value 4 ------ corrected
cav 8 physical value 4, EPICS value 3 ----- corrected
0L04
cav 3 physical value 6, EPICS value 3 ------- corrected
APPROVED Examine SL23 Cryodiode
COMPLETED Remove 1L12 utubes
Utubes removed from 1L12. During removal of the Primary Return utube, the utube became stuck while emitting a plume of cryogenic helium gas from both bayonet connections. We paused the operation and moved all workers clear of the hazard and prepared to evacuate the north linac. We anticipated that the tunnel ODH alarms would sound, so we notified the Crew Chief so that they would be aware of the source and scope of the issue, as well as the technical POCs. However, the plume soon lessened in intensity and we restarted work, successfully removing the utube.