Aggregator

Log Number: 4474730Logbook(s): 

• ELOG

Body: 
HYST AREA Version 7-0 has FAILED to cycle:

MBC3S02V -- NL27B20 -- nl3mag -- Failed to set after 2 cycle attempts
MBC7S00H -- NL27B20 -- nl3mag -- Failed to set after 2 cycle attempts


HYST AREA Version 7-0 has successfully cycled the following:

MQA3S03
MBC3S03H
MBC5S03H
MBC7S02H
MBC7S02V
MBT1S02H
MBT1S02V
MQA3S02
MBC3S02H
MBC3S02V
MBC5S02H
MQA5S01
MBC5S01H
MBC5S01V
MQA7S01
MBC7S00H
MBC7S01V

Total Time: 1.983 mins

Log Number: 4474727Logbook(s): 

• ELOG

Body: 

task complete

Log Number: 4474725Logbook(s): 

• ELOG

Body: 

Ran alarm configuration scripts to remove iochla2 and iochla4. Restarted the alarm handler.

Log Number: 4474726Logbook(s): 

• POLOG
• ELOG

Entry Makers: gramesBody: 

Yesterday Swing we had a third trip of the gun HVPS within a week, so we asked the crew to keep the gun HV off and close the gun valve, thanks. After today's 8am meeting Carlos, Marcy, Mamun, Jay, Mike, Riad and I met around the table, agreed on a plan today to understand the root cause and if the HV chamber is still vacuum tight to bring it back on later today for more diagnosing.

In broad strokes, we'll do these things in order, stopping or rescoping as we move forward. We'll use ePAS and work documents where needed.

1.

Log Number: 4474724Logbook(s): 

• ELOG

Body: 
HYST AREA Version 7-0 has FAILED to cycle:

MQB2L20 -- SL19B09 -- sl6mag -- Failed to set after 2 cycle attempts


HYST AREA Version 7-0 has successfully cycled the following:

MQB2L20
MQB2L21
MQB2L17
MQB2L18
MQB2L19
MQB2L14
MQB2L15
MQB2L16

Total Time: 1.217 mins

Log Number: 4474723Logbook(s): 

• POLOG
• ELOG

Entry Makers: suleimanBody: 

Puck #3 (SLSP-5247-4) is inside the gun.

Storage Manipulator #1 (close to HV Chamber): empty.

Storage Manipulator #2 (farther from HV Chamber):
1. (farther out) Puck #10 (SLSP-5247-4).
2. Puck #31 (SLSP-75104-1).
3. ME Puck (farther in, closer to center of chamber).

Log Number: 4474720Logbook(s): 

• ELOG
• SLOG

Tags: 

• Autolog

Body: restorelib 3.0.1 Target restore date was 2026-02-25 11:21:48 The output from the myRestore execution was as follows: iocsoftmdaq1 systemEnum@2026-02-25 11:21 2(2) restored rtpcellxport@2026-02-25 11:21 32(32) restored Execute: /usr/csite/certified/bin/ced2Epics -ced ced -A -i iocsoftmdaq1 (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: 4474718Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: High Voltage was turned off for:
R12
R13
R14
R15
R16
R17
R18
R19
R1A
R1B
R1C
R1D
R1E
R1F
R1G
R1H
R1I
R1J
R1K
R1L
R1M
R1N
R1O
R1P
R1Q

Log Number: 4474717Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: 

The following box supplies were TURNED OFF by version 2-16 of the Box Supply Cycling Script:
ARC1A Ramp Rate = 7.400 A/s
ARC2A Ramp Rate = 6.339 A/s
ARC3A Ramp Rate = 9.294 A/s
ARC4A Ramp Rate = 10.144 A/s
ARC5A Ramp Rate = 9.307 A/s
ARC6A Ramp Rate = 8.835 A/s
ARC8A Ramp Rate = 10.637 A/s
ARC9A Ramp Rate = 8.864 A/s
ARCAA Ramp Rate = 10.852 A/s
DOG1E Ramp Rate = 2.750 A/s
DOG2E Ramp Rate N/A
DOG3E Ramp Rate N/A
DOG4E Ramp Rate N/A
DOG5E Ramp Rate N/A
DOG6E Ramp Rate N/A
DOG7E Ramp Rate N/A
DOG8E Ramp Rate N/A
DOG9E Ramp Rate N/A
RSEP8A Ramp Rate = 10.544 A/s
RSEP9A

Log Number: 4474716Logbook(s): 

• ELOG
• SLOG

Tags: 

• Autolog

Body: restorelib 3.0.1 Target restore date was 2026-03-06 05:50:58 The output from the myRestore execution was as follows: iocctarg hc_cryotgt@2026-03-06 05:50 6(6) restored cryotgt@2026-03-06 05:50 60(60) restored cryotgt_alarms@2026-03-06 05:50 280(280) restored system@2026-03-06 05:50 2(2) restored Pause: 20 second(s) Execute: /usr/csite/certified/bin/ced2Epics -ced ced -A -i iocctarg (success) PVs modified: 0 PVs modified: 0 PVs modified: 0 PVs modified: 0 PVs modified: 0 PVs modified: 0 PVs modified: 0 Procedure ret

Log Number: 4474715Logbook(s): 

• ELOG
• SLOG

Tags: 

• Autolog

Body: restorelib 3.0.1 Target restore date was 2026-03-06 08:29:51 The output from the myRestore execution was as follows: iocsl25rffcc7 Rf12Fcc_V2 Pause: 60 second(s) Execute: /cs/opshome/burt/REBOOT/Rf12Fcc/DLOAD_ICAL.csh iocsl25rffcc7 (success) c100_rffcc@2026-03-06 08:29 72(72) restored c100_ecal@2026-03-06 08:29 19(19) restored Execute: myRestore -execute -P c100_ecal -t R2P7_ECAL -m BLDGNUM=2 ZONE=P CAV=7 (success) c100_ecal@2026-02-18 09:12 19(19) restored Execute: burtwb -r 3 -f /cs/opshome/burt/REBOOT/Rf12Fcc/snap-kc/

Log Number: 4474714Logbook(s): 

• ELOG
• SLOG

Tags: 

• Autolog

Body: restorelib 3.0.1 Target restore date was 2026-03-06 08:29:27 The output from the myRestore execution was as follows: iocsl25rffcc6 Rf12Fcc_V2 Pause: 60 second(s) Execute: /cs/opshome/burt/REBOOT/Rf12Fcc/DLOAD_ICAL.csh iocsl25rffcc6 (success) c100_rffcc@2026-03-06 08:29 72(72) restored c100_ecal@2026-03-06 08:29 19(19) restored Execute: myRestore -execute -P c100_ecal -t R2P6_ECAL -m BLDGNUM=2 ZONE=P CAV=6 (success) c100_ecal@2026-02-18 09:11 19(19) restored Execute: burtwb -r 3 -f /cs/opshome/burt/REBOOT/Rf12Fcc/snap-kc/

Log Number: 4474713Logbook(s): 

• ELOG
• SLOG

Tags: 

• Autolog

Body: restorelib 3.0.1 Target restore date was 2026-03-06 08:27:15 The output from the myRestore execution was as follows: iocsl25rffcc2 Rf12Fcc_V2 Pause: 60 second(s) Execute: /cs/opshome/burt/REBOOT/Rf12Fcc/DLOAD_ICAL.csh iocsl25rffcc2 (success) c100_rffcc@2026-03-06 08:27 72(72) restored c100_ecal@2026-03-06 08:27 19(19) restored Execute: myRestore -execute -P c100_ecal -t R2P2_ECAL -m BLDGNUM=2 ZONE=P CAV=2 (success) c100_ecal@2026-02-18 09:11 19(19) restored Execute: burtwb -r 3 -f /cs/opshome/burt/REBOOT/Rf12Fcc/snap-kc/

Log Number: 4474712Logbook(s): 

• ELOG
• RFLOG

Tags: 

• Autolog

Body: 

The following cavities have been GSET 0:
1L15-2
Username: michaelm
Date/Time: 03-06-26_08:33:45
RF Status: Bad
Tuner Status: Good
Comment: GSET 0 - stepped off +100k - no kccu
Special Instructions:

Maintenance Tag: Component: Other

Log Number: 4474710Logbook(s): 

• ELOG

Tags: 

• MCC8am

Body:  PD SUMMARY

CIS: - Measured lasers A+D circular pol.
- Measured laser A polarization versus RTP Pockels Cell HV.

Log Number: 4474709Logbook(s): 

• ELOG
• LERFLOG

Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Barker
DATE:             03/06/2026
SHIFT:               Day

The operator has read the following:

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

Log Number: 4474708Logbook(s): 

• ELOG
• LERFLOG

Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Janak
DATE:             03/06/2026
SHIFT:               Day

The operator has read the following:

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

Log Number: 4474705Logbook(s): 

• ELOG

Body: 

We will have to look at the detailed plots with appropriate calibration compensation, but these data are consistent with the data taken last summer (see the attached .pdf). I agree that it would not be unreasonable to do 5 ms pulse processing on the cavities with FE onsets less than 13 MV/m that also did not make it out to 19 MV/m quench fields.

Log Number: 4474704Logbook(s): 

• POLOG
• ELOG

Entry Makers: chgarciaBody: 

Notice how the gun vacuum was recovering after the HV trip off, then at 16:29:03 the gin IP current increases, instead of continuing to drop. Then it stabilizes and decrease again very, very slowly (Fig. 2. ).
Fig. 3. shows the voltage at that time was 5 kV.

No evidence of HVPS curren precursor, Fig. 4. Gun was delivering 60 uA for beam ops before the HV tripped off.

There is no indication of precursor field emission from the anode current either, Fig. 5. Nor from DecaRads (Fig. 6). The signal shown by DecaRads is from beam.

Log Number: 4474703Logbook(s): 

• POLOG
• ELOG

Entry Makers: mockBody: 

.