Aggregator

Log Number: 4471638Logbook(s): 

• ELOG

Body: 

The K11 relay that handles polarity change requests has been removed, disabling the ability to change polarity. Jumpers have been installed on the status pins of the polarity switch. A jumper has also been added to the control board between TP9 and TP32. Functionality of these changes has been completed, verifying that the polarity can not be changed locally or remotely. All work documents have been surrendered. Labeling was added to the front of the supply reflecting these changes.

-O'Brien, Banks

Log Number: 4471635Logbook(s): 

• ELOG
• RFLOG

Body: COMMENTS: Bogus CRFP/CWWT signals.


The following module files were successfully downloaded
sl088e sl088d

Log Number: 4471634Logbook(s): 

• ELOG
• INCLOG

Body: 

VIP2L03A was not pumping down as it should and is being replaced. This will disable the interlock for VBV2L03A and prevent RF testing.
A resistive load box will be connected to the VIP2L03A power supply and simulator relay will be installed on that VBV2L03A control channel to temporarily make up the interlock for RF testing.

Log Number: 4471627Logbook(s): 

• ELOG

Body: 

3A girder leak check was good before installing a new 25liter ion pump. New ion pump installation and leak check completed. Actively pump on girder assembly overnight. We'll activate the Neg pump in the morning.

Log Number: 4471626Logbook(s): 

• ELOG
• RFLOG

Tags: 

• Autolog

Body: 

The following cavity histories have been updated:
2L12-1
Username: kerns
Date/Time: 02-17-26_14:03:50
RF Status: Good
Tuner Status: Good
Comment: RFCM replaced for no comm.
Special Instructions:

Maintenance Tag: Component: RFCM {Removed SN: 245, Replacement SN: 70}

Log Number: 4471625Logbook(s): 

• ELOG
• RFLOG

Tags: 

• Autolog

Body: 

The following cavity histories have been updated:
2L18-4
Username: kerns
Date/Time: 02-17-26_14:01:15
RF Status: Good
Tuner Status: Good
Comment: RFCM replaced for bad comm's preventing HV.
Special Instructions:

Maintenance Tag: Component: RFCM {Removed SN: 119, Replacement SN: 218}

Log Number: 4471624Logbook(s): 

• ELOG
• RFLOG

Tags: 

• Autolog

Body: 

The following cavity histories have been updated:
2L14-2
Username: kerns
Date/Time: 02-17-26_13:57:00
RF Status: Good
Tuner Status: Good
Comment: RFCM unbypassed and replaced for KMAI/comm problem.
Special Instructions:

Maintenance Tag: Component: RFCM {Removed SN: 245, Replacement SN: 103}

Log Number: 4471623Logbook(s): 

• ELOG

Body: 

2A Alignment of MYBBS06 is complete.

Log Number: 4471622Logbook(s): 

• ELOG

Body: 

Re-connect magnet leads @ 1L25, 1L26 and 2L04.... @ 1L25 will had to re-terminate the magnet leads due to bad RAD damage cables that was causing the magnet to be open. 1L26 was rotated by Magnet Test , and we re-connected the magnet leads. 2L04 magnet leads was re-connected. We still need to do polarity check on these magnets.

Banks, Diggs

Log Number: 4471621Logbook(s): 

• ELOG
• RFLOG

Body: COMMENTS: RFCM replaced for comm. faults preventing HV enable.


The following module files were successfully downloaded
sl184d sl184e

Log Number: 4471620Logbook(s): 

• ELOG

Body: 

Mag Shop:

DB corrector pairs are installed @1L26 in horizontal orientation.

DC power has been notified.

Log Number: 4471619Logbook(s): 

• ELOG
• RFLOG

Body: COMMENTS: RFCM replaced for intermittent comm. problem and locking up with 0 going to HV.


The following module files were successfully downloaded
sl121d sl121e

Log Number: 4471618Logbook(s): 

• CLOG
• ELOG

Entry Makers: creelBody: 

Plot the cryomodule JT valve positions for all NL cryomodules and look for the ones where the JT's move the most when RF is turned on and off.
Those will be the modules whose cavities need to be investigated further as this indicates a large heat compensation mismatch.
The JT valve bullets are equal percentage so in general, a position change of 15% is a doubling or having in the mass flow.

For example:
1L10, 1L14, 1L17 move about 10% each. This is a big heat change.

Log Number: 4471617Logbook(s): 

• ELOG
• SLOG

Tags: 

• Autolog

Body: restorelib 3.0.1 Target restore date was 2026-02-17 12:52:05 The output from the myRestore execution was as follows: iocsl3mag magnet_ioc magnet_MAG@2026-02-17 12:52 99(99) restored Pause: 2 second(s) magnet_HVAL@2026-02-17 12:52 99(99) restored Pause: 2 second(s) magnet_LOOP@2026-02-17 12:52 99(99) restored Pause: 2 second(s) magnet_CMPQ@2026-02-17 12:52 214(214) restored magnet_TrimRack@2026-02-17 12:52 6(6) restored Procedure return status: Success systemEnum@2026-02-17 12:52 2(2) restored Exe

Log Number: 4471616Logbook(s): 

• ELOG
• SLOG

Tags: 

• Autolog

Body: restorelib 3.0.1 Target restore date was 2026-02-17 12:50:05 The output from the myRestore execution was as follows: iocsl3mag magnet_ioc magnet_MAG@2026-02-17 12:50 99(99) restored Pause: 2 second(s) magnet_HVAL@2026-02-17 12:50 The following have no download value MBC4S02H.HVAL MBC4S03V.HVAL MBC8S00H.HVAL MBDAS05H.HVAL MBT2S02H.HVAL MBT2S05H.HVAL MBT2S06V.HVAL MDB2L26V.HVAL MDJ2L27V.HVAL MQA2S02.HVAL MQA4S01.HVAL MQA4S04.HVAL MQA4S05.HVAL 86(99) restored Pause: 2 second(s) magnet_LOOP@2026-02-17 12:50

Log Number: 4471615Logbook(s): 

• ELOG
• SLOG

Tags: 

• Autolog

Body: restorelib 3.0.1 Target restore date was 2026-02-17 11:52:42 The output from the myRestore execution was as follows: iocsl3mag magnet_ioc magnet_MAG@2026-02-17 11:52 99(99) restored Pause: 2 second(s) magnet_HVAL@2026-02-17 11:52 The EPICS 'put' failed for the following MXB6S05.HVAL MXB6S06.HVAL MXE8S05.HVAL MXE8S06.HVAL MXXAS05.HVAL 94(99) restored Pause: 2 second(s) magnet_LOOP@2026-02-17 11:52 The EPICS 'put' failed for the following MXB6S05.LOOP MXB6S06.LOOP MXE8S05.LOOP MXE8S06.LOOP MXX

Log Number: 4471614Logbook(s): 

• ELOG
• POLOG

Tags: 

• Autolog

Body: 

Log Number: 4471613Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: High Voltage was turned off for:
R02
R03
R04

Log Number: 4471612Logbook(s): 

• ELOG
• POLOG

Tags: 

• Autolog

Body: 

Log Number: 4471611Logbook(s): 

• ELOG
• SLOG

Tags: 

• Autolog

Body: restorelib 3.0.1 Target restore date was 2026-02-17 11:52:42 The output from the myRestore execution was as follows: iocsl3mag magnet_ioc magnet_MAG@2026-02-17 11:52 99(99) restored Pause: 2 second(s) magnet_HVAL@2026-02-17 11:52 The EPICS 'put' failed for the following MXB6S05.HVAL MXB6S06.HVAL MXE8S05.HVAL MXE8S06.HVAL MXXAS05.HVAL 94(99) restored Pause: 2 second(s) magnet_LOOP@2026-02-17 11:52 The EPICS 'put' failed for the following MXB6S05.LOOP MXB6S06.LOOP MXE8S05.LOOP MXE8S06.LOOP MXX