Aggregator

Log Number: 4549798Logbook(s): 

• ELOG

Body: 

MO outage canceled!

Just received word that outages scheduled for tomorrow have been postponed (See log entry 4549777).

Because no outage will occur tomorrow, the MO will remain on until further notice.

Log Number: 4549797Logbook(s): 

• ELOG
• SLOG

Tags: 

• Autolog

Body: restorelib 3.0.1 Target restore date was 2026-10-12 14:15:50 The output from the myRestore execution was as follows: iocsoftrfhtrdev1 systemEnum@2026-10-12 14:15 2(2) restored Execute: /usr/csite/certified/bin/ced2Epics -ced ced -A -i iocsoftrfhtrdev1 (success) PVs modified: 0 PVs modified: 0 PVs modified: 0 PVs modified: 0 PVs modified: 0 PVs modified: 0 PVs modified: 0 Procedure return status: Success

Log Number: 4549795Logbook(s): 

• ELOG

Body: 

In summary from F&O: The primary concern is maintaining adequate condenser water (cooling tower) flow to the ESR Complex. Usually this is accomplished during North Access electrical power outages by operating three condenser water pumps connected to the electrical panel that remains online and restricting water flow to the West ARC and North LINAC LCW heat exchangers.

Log Number: 4549791Logbook(s): 

• ELOG

Body: 

Completed successfully. Guards reported no issues and cronjob is now running

Log Number: 4549790Logbook(s): 

• POLOG
• ELOG

Entry Makers: mamunBody: 

We continue to see typical gas desorption during gun HV conditioning. The vacuum activities are correlating with decarad counts and anode and gun HVPS current. As soon as the vacuum improves, the decarad counts abates, and gun HVPS current returns back to background level, indicating HV ceramic insulator and cable are happy.

We just experienced our 2nd trip.

Ramping back again!

Log Number: 4549788Logbook(s): 

• ELOG

Body: 

MSSG:

The team did a real nice job, flushing the second array of dipoles (29/30) and rinsed the array. They completed the job with a nice clean up and put up/staged flush rig and LCW containment. Also, re-labeling of Supply/Return LCW circuits.

Tomorrow work will shift to West Arc septum (ZAs) flushing and containment in blue 55/gal barrels. The new SR1 is now completed and ready for use tomorrow.

Log Number: 4549786Logbook(s): 

• POLOG
• ELOG

Entry Makers: mamunBody: 

we are seeing typical gas desorption during gun HV conditioning. The vacuum activities are correlating with decarad counts and anode and gun HVPS current. As soon as the vacuum improves, teh decarad counts abates, and gun HVPS current returns back to background level, indicating HV ceramic insulator and cable are happy.

Ramping back again!

Log Number: 4549783Logbook(s): 

• ELOG

Body: 

Thank you for the update. Do you have any additional information as to why it needs to be rescheduled? Rough estimate on when you will be ready to perform the work?

Log Number: 4549780Logbook(s): 

• ELOG
• SLOG

Tags: 

• Autolog

Body: restorelib 3.0.1 Target restore date was 2026-09-25 08:32:10 The output from the myRestore execution was as follows: iocw203rf1 vac@2026-09-25 08:32 4(4) restored systemEnum@2026-09-25 08:32 2(2) restored Execute: /usr/csite/certified/bin/ced2Epics -ced ced -A -i iocw203rf1 (success) PVs modified: 0 PVs modified: 0 PVs modified: 0 PVs modified: 0 PVs modified: 0 PVs modified: 0 PVs modified: 0 Procedure return status: Success

Log Number: 4549779Logbook(s): 

• POLOG
• ELOG

Entry Makers: brukerBody: 

The CEBAF gun HVPS is giving a readback of the actual voltage (IGL0I00HVPSkVolts) consistently 20% higher than its own setpoint (IGL0I00HIGHVSET). This is likely unphysical but should be understood. Could there be a scaling factor etc. that the control system has forgotten about since the last run? Some insight would be appreciated!
cc: Keith Cole; Steve Covert just in case it turns out to be a hardware issue.

Log Number: 4549778Logbook(s): 

• POLOG
• ELOG

Entry Makers: brukerBody: 

Found decarad system 1 showing no voltage and reading no noise counts despite being set to ON.
Turned it off and on again in EPICS. Now showing 500-ish volts and reading the normal amount of noise.

Log Number: 4549777Logbook(s): 

• ELOG

Body: 

Tuesday and Wednesday outages will have to be rescheduled.

Log Number: 4549776Logbook(s): 

• ELOG

Entry Makers: dthomasBody: 

Log Number: 4549775Logbook(s): 

• ELOG
• POLOG

Body: 

HVPS breaker switched on.
J6 interlock bypass jumper installed on HVPS interlock chassis. Verified interlocks are clear.

Log Number: 4549774Logbook(s): 

• ELOG

Entry Makers: dthomas

Log Number: 4549773Logbook(s): 

• POLOG
• ELOG

Body: 

After confirmed with Ops that only the MO in the ISB upper level will be lost, I turned off all the seed lasers. The amps have been truned off by Joe earlier.

Log Number: 4549770Logbook(s): 

• ELOG

Entry Makers: kpriceBody: 

Taking to "checked" in SRM, we're ready for Gun HV operations.

Log Number: 4549769Logbook(s): 

• ELOG
• RFLOG

Body: 

New PTWs related to the 1L08 upgrade with the new IC for the replaced breaker are as follows

JLab-PTW-11583 rev 1 C75 Upgrade to the CPS for zone 1L08

JLab-PTW-11575 rev 1 Upgrade LLRF racks in 1L08 to C75

JLab-PTW-11598 Install 8 kW circulators in 1L08

Log Number: 4549767Logbook(s): 

• ELOG
• RADLOG

Entry Makers: dthomasBody: 

Log Number: 4549765Logbook(s): 

• ELOG
• LERFLOG

Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Thomas
DATE:             10/12/2026
SHIFT:               Day

The operator has read the following:

• ELOG
• PD Shift Plan
• Radiation Surveys for PSS Segments in Controlled Access
• PSS Log