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Log Number: 4508104Logbook(s): 

• ELOG
• RFLOG

Body: COMMENTS: Arc Test failure


The following module files were successfully downloaded
nl061d nl061e

Log Number: 4508102Logbook(s): 

• ELOG
• SLOG

Tags: 

• Autolog

Body: restorelib 3.0.1 Target restore date was 2026-06-03 11:32:34 The output from the myRestore execution was as follows: iocnl05rfcry Rf6Cryo Execute: burtwb -f /cs/opshome/burt/REBOOT/rf/snap/iocnl05rfcryheatdisvINIT.snap (success) Execute: burtwb -f /cs/opshome/burt/REBOOT/rf/snap/iocnl05rfcryheatmodemanual.snap (success) Pause: 8 second(s) Rf06Cryo_heatset@2026-06-03 11:32 2(2) restored Pause: 8 second(s) Rf06Cryo_heatmode@2026-06-03 11:32 1(1) restored Execute: burtwb -f /cs/opshome/burt/REBOOT/rf/snap/iocnl05rfcryheatdisv.snap (

Log Number: 4508101Logbook(s): 

• ELOG

Body: 

PSS UPS in NL Zone 1 batteries replaced due to end of life. returned to service.

Log Number: 4508100Logbook(s): 

• ELOG

Entry Makers: jhowardBody: 

Opened by expert request. Pressure looks stable.

Log Number: 4508099Logbook(s): 

• ELOG

Body: 

Under ATLIS https://tasklists.jlab.org/atlis/tasks/120357, I wanted to include pictures from before and after this work. The attenuator boards were removed so now we will not have the noise issue, however the signal level will be higher and may clip (without any risk to equipment).

I want to make sure Dennis and anyone using SMART RAT tool is aware of this change.

Log Number: 4508096Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: saver ran from opsl02

Saved: bruker 06-03-26 11:08:52 {A:i B:1 C:3 E:1060 A=Tune B=BS C=BS D=BS 0R08=0.00 0R08 dump in. A B C dump(s) in.

Log Number: 4508095Logbook(s): 

• ELOG

Body: 

NL03 chassis inspected. It was noted that there are additional, long AC power cables coiled up in this bay that were not present before. I removed the external 'attenuator' boards and noticed that the noise seemed to go away. It appears that these boards were coupling to house power. Since we need house power, I removed these boards and the noise is now resolved.

Log Number: 4508094Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: saver ran from opsl02

Saved: bruker 06-03-26 10:53:27 {A:i B:1 C:3 E:1060 A=Tune B=BS C=BS D=BS 0R08=0.00 0R08 dump in. A B C dump(s) in.

Log Number: 4508090Logbook(s): 

• ELOG

Body: 

Swapped trim card MDJ2L27V CH 10 SL27B18 and Trim card MBCA01H CH9 W102B12.

Log Number: 4508087Logbook(s): 

• ELOG

Body: 

Log Number: 4508086Logbook(s): 

• ELOG

Body: 

Mag Shop:

Work completed. ATLis being closed.

Log Number: 4508085Logbook(s): 

• ELOG

Body: 

Log Number: 4508084Logbook(s): 

• ELOG

Body: 

Log Number: 4508083Logbook(s): 

• ELOG
• INCLOG

Body: 

ioctsbhrp - the two inoperable stepper motor driver modules were removed from channels 1 and 2. The new ones were mounted inside the chassis, cycled Hall D harps and verified they are fully operational.
https://logbooks.jlab.org/entry/4508050
https://logbooks.jlab.org/entry/4508071
https://logbooks.jlab.org/entry/4508070
https://logbooks.jlab.org/entry/4508069
https://logbooks.jlab.org/entry/4508068

Log Number: 4508081Logbook(s): 

• ELOG

Body: 

We have completed measurements and dosimetry swap-outs for all 30 locations (8 this morning). Dosimetry has been left and tagged in the North Access side, on the second shelf of the table - awaiting RadCon collection.

We'll aim to continue the work during the next RA opportunities.

Log Number: 4508080Logbook(s): 

• ELOG

Body: 

Tx swap complete. Levels matched. Notified Ops. Recommend check NL gang phase when recovering RF. RF group will continue to monitor and advise.

Log Number: 4508078Logbook(s): 

• ELOG

Body: 

Mag Shop:

We pulled off a miracle on ice. The braze leaks were at 3-5 o' clock positions, right up against the wall. Bern and I used two torch method and sister torched this thing, after many attempts we nailed it. We have put down a nice new leak tight braze all around the header pipe and LCW is restored and system is currently leak tight.

Team members are cleaning up and getting all the tools picked up and taken out of CEBAF now.

Thanks to all team members for their part.

Log Number: 4508076Logbook(s): 

• ELOG

Body: 

For cavities not to be used / bypassed due to IR sensors, please be sure to also update CavHistory (which I suppose was already planned as part of the process of bypassing).

Log Number: 4508075Logbook(s): 

• ELOG

Body: 

Please coordinate with Ops, HPRF, and SRF when performing this work. Approved.

Log Number: 4508074Logbook(s): 

• ELOG

Tags: 

• Readme

Entry Makers: moserBody: 

Leak repair completed. Mech Install guys are drying out before wrapping up their paperwork. https://tasklists.jlab.org/atlis/tasks/120384