Recent Log Entries

Log Number: 4159059Logbook(s): 

• ELOG

Body: 

Task reviewed with people performing the work

Log Number: 4159053Logbook(s): 

• ELOG

Body: 

Supplemental turbo pump/cube actively pump on insulating vacuum.

Log Number: 4159052Logbook(s): 

• ELOG
• SLOG

Tags: 

• Autolog

Body: restorelib 2.6 Target restore date was 2023-05-25 10:21:48 The output from the myRestore execution was as follows: iocse15 system@2023-05-25 10:21 2(2) restored seebpm@2023-05-25 10:21 369(369) restored Pause: 30 second(s) SEE_BURT 9(9) restored Execute: /usr/csite/certified/bin/ced2Epics -ced ced -A -s -i iocse15 (success) Procedure return status: Success

Log Number: 4159051Logbook(s): 

• ELOG
• SLOG

Tags: 

• Autolog

Body: restorelib 2.6 Target restore date was 2023-05-26 10:48:34 The output from the myRestore execution was as follows: iocsoftbunlen systemEnum@2023-05-26 10:48 2(2) restored Execute: /usr/csite/certified/bin/ced2Epics -ced ced -A -s -i iocsoftbunlen (success) Procedure return status: Success

Log Number: 4159050Logbook(s): 

• ELOG

Body: 

EESSAF conducted an audit of the CEBAF and the experimental halls, as well as of LERF, GTS, UITF, VTA, CMTF and found one personal lock installed by SSG member on the RF Group LOTO box in the Injector (0L02 related work).
The individual has required training and good understanding of the RF equipment LOTO process, and his signature was found on the OSP signature sheet attached to Group LOTO box.

SSG also has administrative locks in place in several locations around the site.

Please contact Jerry Kowal with any questions.

Log Number: 4159048Logbook(s): 

• ELOG

Body: 

All water lines are now connected, LCW flow restored. Nice job on the labeling, it made the reinstallation simple.

Log Number: 4159045Logbook(s): 

• ELOG
• SLOG

Tags: 

• Autolog

Body: restorelib 2.6 Target restore date was 2023-05-25 17:47:21 The output from the myRestore execution was as follows: iocin2 <NOTE> Rf6Cryo: Provided macro *CAV* is never used <NOTE> Rf6Ops: Provided macro *IOC* is never used BL_iocin2@2023-05-25 17:47 4(4) restored Rf6Cryo Execute: burtwb -f /cs/opshome/burt/REBOOT/rf/snap/iocin2heatdisvINIT.snap (success) Execute: burtwb -f /cs/opshome/burt/REBOOT/rf/snap/iocin2heatmodemanual.snap (success) Pause: 8 second(s) Rf06Cryo_heatset@2023-05-25 17:47 2(2) restored Pause: 8 second(s

Log Number: 4159044Logbook(s): 

• ELOG

Entry Makers: vasilausBody: 

As you can see, OMSL20 located above SL09 had the greatest response, followed by OMSL19 located above SL02 and OMSL21 located down by SL15.

Log Number: 4159043Logbook(s): 

• ELOG

Tags: 

• MCC8am

Body:  Timesheet notice

Refer to the email sent Thursday 7pm for full text.

Log Number: 4159042Logbook(s): 

• ELOG
• INCLOG

Body: 

Gamma SPCe epics interface work commencing. Some VIPs ready for remote monitoring: VIP0I02, 0I03, 0I04, 0I04A, 0I05.

Log Number: 4159041Logbook(s): 

• ELOG

Body: 

All four imagers are installed and aligned. Once the water cooling to the YA Coil protectors are reattached the task can be completed. https://logbooks.jlab.org/entry/4159001

Log Number: 4159040Logbook(s): 

• ELOG

Body: 

This task is complete. https://logbooks.jlab.org/entry/4158715

Log Number: 4159037Logbook(s): 

• ELOG

Body: 

All Piping has been replaced and is operational.

Log Number: 4159036Logbook(s): 

• ELOG

Body: 

All Piping has been replaced and is operational.

Log Number: 4159030Logbook(s): 

• ELOG

Body: 

Completed LLRF C100 maintenance on 2L26.

Log Number: 4159018Logbook(s): 

• ELOG

Body: 

https://logbooks.jlab.org/entry/4159017

Results of testing VFV2L27. The valve was fired twice, testing the interlock to both the DP station, and the upstream ion pump. The spec for closing is ~10 ms or less, and the scope measurement indicates just over 2ms from vacuum fault to valve closure.

Log Number: 4159017Logbook(s): 

• ELOG
• INCLOG

Body: 

As part of SAD maintenance, Ins/Vac has installed a new fast valve in zone 2L27. This valve has been broken and subsequently buggered out for several years.
With the new valve in place, it was necessary to re-commission the controlling electronics that are interlocked to the 2L26 C100 chassis and the 2L27 DP station.

As part of the 2L27 restoration, I modified the FPGA code to make version x"0303" which will run on both 1L26 and 2L26.

Log Number: 4159016Logbook(s): 

• CLOG
• ELOG
• SRFLOG

Entry Makers: weaksmccryoBody: 

Cooldown of 2L22 & 2L23 is complete.

Liquid levels are currently ~20% in both modules and JT's have been set to fill to 90%

Log Number: 4159015Logbook(s): 

• POLOG
• ELOG

Entry Makers: marcyBody: 

Testing ion pumps VIP0I06A and VIP0I07 before and after activating adjacent NEG pumps.

In both graphs, the ion pump current before the activation is shown on the right and after NEG activation on the left vertical axis.

The pressure is much lower in both pumps, and the field emission in VIP0I07 has stopped.

Matt hipotted one of the pumps yesterday - he said it was 0I06A (DP can), which might have started field emitting after the full NEG activation. However, a field emitter is now missing from VIP0I07 so that could be the pump that got hipotted.

Both pumps are on a local control now.

Log Number: 4159010Logbook(s): 

• ELOG

Body: 

Girder OL01 has been staged, it is in the Injector Service Building next to Crane Hatch, Neil and Crew will lower it to Injector Floor tomorrow morning, thanks Neil.