Aggregator

Log Number: 4551312Logbook(s): 

• ELOG

Body: 

Via e-mail touched based with DC Power, MSS, and AES Electricians who indicated they'll be working in the Bldg today. RF comment below. All have confirmed this outage is compatible with their use of the building today.

Once the PTW is on-issue this task is approved for execution today, 10/29. Added to SAM Cal and Work Map.

Log Number: 4551311Logbook(s): 

• ELOG

Body: 

Works for RF

Log Number: 4551310Logbook(s): 

• HDLOG
• ELOG

Body: 

Waiting for delivery of procurements
Hall D - Scheduled maintenance
TAGM fiber bundle production - ongoing

Log Number: 4551309Logbook(s): 

• ELOG
• SRFLOG

Body: 

Completed Tuner characterization for cavity 4.
Then did the gradient ramp for cavity 4. Emax at 23.1 MV/m - quench limited.
FE Onset at ~18 MV/m
Max dose rate ~ 500 mR/hr at 22.6 MV/m
Attempted one hour at 22.6 MV/m. After about 45 minutes, klystrons faulted on KMAV.
Completed FE vs E measurement

Log Number: 4551308Logbook(s): 

• ELOG
• SLOG

Tags: 

• MCC8am
• Software and Controls

Body: 

Finalizing JAWS admin tools: Working on methods for installing a new configuration.

Log Number: 4551307Logbook(s): 

• ELOG

Body: 

Calibration of North LINAC, West ARC, South LINAC, and East ARC dissolved oxygen sensors completed. Plan is to replace failed two North Access Honeywell UDC Thursday 10/29/26 and then move to the South Access to begin replacement of several failed Honeywell UDC's. Replacement UDCs arrived recently.

Log Number: 4551306Logbook(s): 

• ELOG

Tags: 

• Autolog
• MCC8am

Body:  */ ATLis Comments Posted 18:00 Tuesday October 27 through 18:00 Wednesday October 28 AES DC Power Systems Disconnect, Remove 20 Amp Trim Power Supplies For Bench Repair

2026-10-28 11:10 - Jason Delk

Log Number: 4551305Logbook(s): 

• HALOG
• ELOG

Tags: 

• PD

Entry Makers: jonesBody: 

• Leak checking the hydrogen piping.
• Prepared a cable tray support stand for welding.
• Upstream pivot platform girder support is aligned and ready for S&A.

Log Number: 4551304Logbook(s): 

• ELOG
• SLOG

Tags: 

• Autolog

Body: Event/action ID: 3 [mod.type.prop.ioc.macaddress]
Deployment: ced
Workspace: ops
Changes:
ioccs1.macaddress

Log Number: 4551303Logbook(s): 

• ELOG
• SLOG

Tags: 

• Autolog

Body: restorelib 3.0.1 Target restore date was 2026-10-28 16:29:08 The output from the myRestore execution was as follows: iocsoftrfcrydev1 systemEnum@2026-10-28 16:29 2(2) restored Execute: /usr/csite/certified/bin/ced2Epics -ced ced -A -i iocsoftrfcrydev1 (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: 4551302Logbook(s): 

• CLOG
• ELOG

Entry Makers: creelBody: 

Performed SCN CC4 spin test up to 70HZ
Oscilloscope traces of position sensors looked good.
No wobble identified. Position feedback signal amplitude did not grow with speed and bearing currents remained low.
More testing in the AM.

Log Number: 4551299Logbook(s): 

• ELOG

Body: 

Today Hall C technicians worked on.

Getting Fall protection permit, Rad work permit and EPAS approved and signed.
Cross training on Bridgeport milling machine
EPAS training
ENGE mobile detector stand.
NUCAT scintillator frame holder.
Assembling filament extrusion project parts.

Thursday 10/29/26 we have requested RADCON support to remove down stream beam pipe.

Log Number: 4551298Logbook(s): 

• ELOG

Body: 

Installation of the buzzer and modified crash-button shroud has been completed for the Injector, North and South Access door.

Log Number: 4551296Logbook(s): 

• ELOG
• SLOG

Tags: 

• Autolog

Body: restorelib 3.0.1 Target restore date was 2026-10-28 16:03:57 The output from the myRestore execution was as follows: iocsoftrfcrydev1 systemEnum@2026-10-28 16:03 2(2) restored Execute: /usr/csite/certified/bin/ced2Epics -ced ced -A -i iocsoftrfcrydev1 (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: 4551295Logbook(s): 

• POLOG
• ELOG

Entry Makers: marcyBody: 

Vacuum recovering - Overboard ion pump came on and is at 540 uA. We'll leave this on and try to turn on the chamber ion pump tomorrow for checkout of leak valve, Cs and RGA as well as tests of long manipulator.

Cleanroom still in place in case we have to rework any of the components.

Log Number: 4551293Logbook(s): 

• POLOG
• ELOG

Entry Makers: marcyBody: 

Two of the ion pumps tripped their fault limits due to the NEG activation. I reset them.

Everything is now under 100 nA and recovering.

Log Number: 4551292Logbook(s): 

• CLOG
• ELOG

Entry Makers: creelBody: 

Completed installation of updated CHL2 horizontal and vertical ASME relief valves.
SCN CC4 unlocked and levitated
SCN CC4 time response damping, air-gap, and UPS battery testing completed on magnetic bearing control cabinet
Continued removing unused racks and other hardware from CHL control room

Log Number: 4551291Logbook(s): 

• ELOG

Body: 

1L06 is online and cold. 1L07 was punted last week due to excessive pressure buildup when attempting to install the return U-Tube.
This morning, a purge rig was installed on 1L07, and we have been flowing through the module since.

Log Number: 4551288Logbook(s): 

• POLOG
• ELOG

Entry Makers: marcyBody: 

I activated the NEG pumps in the 1I beamline. This was last done when they were installed in 2021, so it was time for a reactivation anyway, and they saw a tiny leak due to the gun bakeout and a leak in the gun valve bonnet seal.

Since the pumps are distributed along ~10' of beamline, and I had a pump cart installed only in the upstream location, I activated them in a staggered start/staggered end, starting with the end farthest from the gun.

For reactivation, the NEG should be taken to about 75% of the temperature for full activation.

Log Number: 4551285Logbook(s): 

• ELOG
• SRFLOG

Body: 

Please comment on latest regarding 1L06 and 1L07 cooldowns, updated plans.