Aggregator

Log Number: 4549825Logbook(s): 

• ELOG

Body: 

Looking to get a little more detail before approving this work.
A short summary of the tests being performed? What dipoles will be tested? Where will you start / end? Will you be working multiple days?

Log Number: 4549824Logbook(s): 

• ELOG

Body: 

Polarity check is completed on all (8) magnets that where re-installed on the Injector beam line.

Diggs, Richardson

Log Number: 4549823Logbook(s): 

• ELOG

Body: 

PTW is approved. Putting this task on the SAM calendar for tomorrow.

Log Number: 4549816Logbook(s): 

• ELOG

Body: 

12th Oct. work:
- Hall A MOLLER upstream girder inspection

13th Oct. work map:
- (test lab) Hall A MOLLER upstream harp fiducialization

Log Number: 4549813Logbook(s): 

• ELOG

Body: 

1L26 - Full clean room set up @ girder 1L26.

Log Number: 4549812Logbook(s): 

• ELOG

Body: 

1L20 - Replaced Agilent scroll pump at 1L20 gate valve open turbo at full speed. Old pump staged for RADCON survey.

Log Number: 4549811Logbook(s): 

• ELOG

Body: 

1L13 - Replaced Agilent scroll pump at 1L13 gate valve open turbo at full speed. Old pump staged for RADCON survey.

Log Number: 4549809Logbook(s): 

• ELOG
• INCLOG

Body: 

With the success of the fix of the Valve interlock cable between E3 and E5 I have contacted Radcon to install new Radcon screw in rack E301B10 for the new panel holding the new convectron controllers.

Will continue to monitor and perform another HCO at the end of the week along with the Valve interlock controls at E5: https://tasklists.jlab.org/atlis/tasks/121068

If everything checks our I will close out Atlis/PTW.

Log Number: 4549806Logbook(s): 

• ELOG
• INCLOG

Body: 

So far no issues have arisen.

Replaced Valve interlock chassis with original chassis in rack E501B10.
Re-installed original power supply with new fuse for Valve interlock chassis.
Contacted Radcon to get Radcon screw re-installed for this chassis.

Will continue to monitor chassis the rest of the week then close out Atlis/PTW.

Log Number: 4549804Logbook(s): 

• POLOG
• ELOG

Entry Makers: brukerBody: 

The issue reported earlier has been resolved. It was due to an unexpected interaction between the gun HVPS readback PV and the FSD comparator.
The FSD comparator channel which measures the gun voltage (IN01_4 channel 1) had its TEST flag enabled, causing its readback to be stuck at 209 kV. As one readback was stuck and the other was just too high by a relative amount, it was not obvious that there was a common reason for the two readbacks being false.

Log Number: 4549800Logbook(s): 

• POLOG
• ELOG

Entry Makers: mamunBody: 

Gun HV vacuum conditioning: 3rd trip at 185 kV.

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