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ATLis Comments Daily Digest
ACG Report
Planning prep for Tuesday Bldg: 85 Power Outage
RTEMS 6.2 PC-104 build development
VWien + HWien positive and negative plates set at +/- 19 kV for overnight soak
At the end of ~4 h soak with VWie+HWien negative supplies at -19 kV, positive supplies of VWien + HWien are ramped to +19 kV in 1 kV steps every 30 sec. No vacuum activity is observed during the ramping nor during the last 4 h soak with negative plates at -19 kV. Tomorow morning we will ramp down both Wiens HV and turn off for Wien magnet yoke removal work.
Hall C daily summary
Today Hall C technicians worked on.
Fabricating NUCAT lead shielding frame assembly
Machining MOLER Barite shield wall assembly parts.
Printing and test-fitting and modifying NUCAT parts
Assembling filament extrusion project.
Fabricating poly shielding assembly for NUCAT
No cross division work planned for 11/06/26
COMMENT ON Upgrade Air Interlock on 4 Single Channel Shunt Chassis
Cryogenics Work Update
• The CHL2’s 2K Cold Box lid installed, late afternoon started initial vacuum pumping
• HDR mounting hardware and actuator for converting MV381 and MV368 to conversion control valves- in progress
• CHL Control Room new monitors wall mount installation - in progress
• Relocated old CHL Control Room 19" racks to building 36 (qty-4)
• SL PLC 6/8 pin cable harness - in progress
• Staged new spare MECOS drive for CHL1’s 2K Cold Box in preparation for Power up/testing - in progress
COMMENT ON Hall A Berm Improvements
COMMENT ON 2026 SAM LCW Controls Calibrations
iocsoftnl08rf restored
iocsoftnl08rf restored
COMMENT ON EA / WA LCW Systems - Install pH sensor
COMMENT ON BE-CH-1&2 PM BEAMS chillers E&W Arc
APPROVED Wien magnet work-CEBAF/Injector
Added this ATLis as related task to ATLis 121912 -- Coordination of CEBAF Wien filter Jobs.
ATLis 121914 -- Disconnect Injector Wien Magnets MWF1I04 and MWF1I06 -- linked to this one, and was declared complete a little over an hour ago, covering the DC Power disconnects.
PTW-12243 on-issue.
Task approved, added to SAM Cal beginning 11/9 for two weeks.
COMMENT ON 26/27 SAM Power Supply Flushing
MSSG relayed that they completed NLSB BoxPS flushing (Dog1E) and will proceed with flushing the two supplies (TSB5C, TAG5C) in the the Tagger ServBldg (B200) tomorrow, Friday 11/6.
For the work in Tagger SB, the 480VAC outlet is needed. Coordinated with F&O and Hall D -- outlet was in-use to power a temporary VFD for a pump for the Hall D Chiller system. There are two pumps, and given the current maintenance status of Hall D they confirmed no issue operating on one pump until flushing wraps up tomorrow.
The 480VAC outlet is ready for MSSG as of now.
COMMENT ON Upgrade 1L08 to a C75 zone.
Wired RF cables to the cross connect and made new, longer hoses for circulator LCW return. In the process of installing new LCW manifold fittings, some hard sediment buildup was noted on the removed fittings. Since things have been going at a good pace, we're taking the time to have the fittings that are staying in the machine cleaned to remove some of the gunk. We're aiming to have the water back on and leak checked by next week.










