Aggregator
COMMENT ON Upgrade 1L08 to a C75 zone.
The 480v ac power has been installed internally of the supply. Known items that still need to be installed are the voltage verification unit, ground the transformer and the scr, install the new breaker handle on the new breaker in the power supply, verify that all the labels are correct. Vacuum any debri inside the power supply. If I have missed anything please let me know. Work will continue on Monday..
COMMENT ON Magnet Thermal Interlock Chassis Upgrade
COMMENT ON Magnet Disconnect for Electrical Testing of Arc Dipoles
COMMENT ON Upgrade Air Interlock on 4 Single Channel Shunt Chassis
Building 95 Tun 9 Lock Removed
Crew Chief on Call was notified.
ILD confirmed to be locked in.
This was requested by RadCon.
Permission was granted by RadCon Deputy Field Operations Manager.
Tun9 lock was removed by ELog author.
This was done in accordance with MCC-PR-17-016.
COMMENT ON Upgrade Air Interlock on 4 Single Channel Shunt Chassis
COMMENT ON Install external fans on Shunt chassis
Hall B daily update for 30OCT 26
COMMENT ON Upgrade 1L08 to a C75 zone.
COMPLETED Glycol Leak Response and Repair (after action ATLis entry)
APPROVED Glycol Leak Response and Repair (after action ATLis entry)
COMMENT ON Trim Rack Blower Replacements in E1, E5, and W1 (SAM 2026)
COMMENT ON PSS General maintenance tasks for SAM 2026
COMMENT ON install labjack(T7) in injector for wien monitoring
TC wires ran and connectorized, temp sensor for CJC installed. All thats left is to connect sensors, configure each channel once the app/screen is available and verify functionality once sensors are placed in their intended spots on the filters. For now, we should be out of the way. Thank you to Marcy and Riad for letting us get in and finish this.
COMMENT ON Extending Laser beam Passthrough of CEBAF Laser Room
Hall C daily summary
Today Hall C technicians worked on.
Cleaning beam pipe pieces.
Getting new hardware for beam pipe.
Fork lift practical.
Assembling filament extrusion project.
Worked on 3D printing guidelines and SDS for different filaments.
Cross division work for Monday with Engineering For weld inspections.
1I beamline ion pump recovery after NEG activation
Ion pumps recovering well. With the exception of 1I03, they are all nearly back to their pre-activation values. I'll continue watching, and determine if the HV setpoints need to be adjusted after the vacuum fully recovers in case field emitters "woke up" during the higher pressure during the NEG activations.
prep chamber new equipment checkout
Started functional tests of new parts installed in the prep chamber. Pressure was good - under 100 uA on the ion pump power supplies.
Put magnet on the long manipulator and moved in and out - very smooth. Used the back side of the HV chamber valve to pop the magnet on. Since the cam of the valve pushes toward the HV chamber, this direction of force helps close the valve more and is ok. If the pressure was pushing the valve toward open, I would not use a valve to push the magnet on.
The long manipulator seems to be slightly high compared to the side manipulator.
COMMENT ON BPM Maintenance - SAM '26
IPMAA09 - RF module replaced (https://logbooks.jlab.org/entry/4551395)
IPMAS04 - RF module check (https://logbooks.jlab.org/entry/4551393)










