Aggregator

Log Number: 4516256Logbook(s): 

• ELOG
• RFLOG

Entry Makers: bschaumlBody: 

These two iocs show up in the alarm hadnker with low free memory alarms and the button to reboot them does not show up. They appear to be functioning normally and only have building temperature info on them.

Log Number: 4516255Logbook(s): 

• ELOG

Entry Makers: yoon

Log Number: 4516254Logbook(s): 

• ELOG

Body: 

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

Area.Linacs.South

Total Time: 3.133 mins

Log Number: 4516253Logbook(s): 

• ELOG
• CLOG

Tags: 

• Autolog

Body: LEM 9.19.5 was successfully run for the South Linac on 2026-06-24 22:59:34. The application phase took 00:00:07 to complete.

Log Number: 4516252Logbook(s): 

• ELOG

Entry Makers: yoonBody: 

got alot out of 2L04-7, about to run phaser

Log Number: 4516251Logbook(s): 

• ELOG

Entry Makers: yoonBody: 

Log Number: 4516250Logbook(s): 

• ELOG

Body: 

RF maintenance day summary

NL( +10MeV from the maintenance work )

1L07-1 FCC replacement 

1L09-2 Tube replacement +5.7MeV

1L09-5 removed attenuation and Klystron characterization

1L20-1 2.5w drive amp replacement +4.3

1L21-5 Arc detector work 

SL (+43MeV from the maintenance work)

2L02- 2,3,4,5,6,7,8 recovery after cavity 1 T/S +25.2MeV

2L07-4 Arc detector work +3.7MeV

2L20-8 recovery +2.2MeV

2L25-FCC replacement

2L26-3 Bay 1HV recovery +12.2 MeV

While bringing back the machine we they had to bypass 1L23-8 (high KCCU -4.2MeV) and few cavities in 2L03 and 2L05( for 120Hz oscillati

Log Number: 4516249Logbook(s): 

• ELOG

Entry Makers: jktxgomezBody: 

recovering 2L03 and 2L05 after the maintenance day took more time than expected. Cavities were unstable and can't stay in SELAP . Looking at the waveforms all cavities had 120 Hz component in GMES and PMES.
At this point it had to be the fcc power supply chassis or the power supply for the pre-amplifier possibly causing this. We had seen something similar in 1L03 in the past.

Xavier went to the zones and measured the ripple on the 24 V power supply for multiple zones in SL

2L03
DC value 23.6 V, AC 0.572 V

Log Number: 4516248Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: System UN-Masking for: CryoModule
User: eforman
Areas: All

CryoModule Devices:
0L02
0L04
0L03
1L14
1L03
1L02
1L04
1L05
1L07
1L06
1L08
1L09
1L10
1L11
1L12
1L15
1L13
1L16
1L19
1L17
1L18
1L20
1L21
1L22
1L23
1L24
1L25
1L26
2L14
2L03
2L02
2L04
2L05
2L07
2L06
2L08
2L11
2L09
2L10
2L12
2L15
2L13
2L16
2L19
2L17
2L18
2L20
2L21
2L22
2L23
2L24
2L25
2L26

Log Number: 4516245Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: System Masking for: CryoModule
User: eforman
Areas: All

CryoModule Devices:
0L02
0L04
0L03
1L14
1L03
1L02
1L04
1L05
1L07
1L06
1L08
1L09
1L10
1L11
1L12
1L15
1L13
1L16
1L19
1L17
1L18
1L20
1L21
1L22
1L23
1L24
1L25
1L26
2L14
2L03
2L02
2L04
2L05
2L07
2L06
2L08
2L11
2L09
2L10
2L12
2L15
2L13
2L16
2L19
2L17
2L18
2L20
2L21
2L22
2L23
2L24
2L25
2L26

Log Number: 4516244Logbook(s): 

• ELOG

Entry Makers: yoonBody: 

1L23 dropped out of HV while working on 2L03-2, so picking back up here when RF hands the machine back over to us

Log Number: 4516243Logbook(s): 

• ELOG
• CLOG

Tags: 

• Autolog

Body: LEM 9.19.5 was successfully run for the South Linac on 2026-06-24 21:56:15. The application phase took 00:00:07 to complete.

Log Number: 4516242Logbook(s): 

• ELOG

Body: 

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

Area.Linacs.North

Total Time: 3.033 mins

Log Number: 4516241Logbook(s): 

• ELOG
• RFLOG

Tags: 

• Autolog

Body: 

The OPS DRVHs for the following cavities have been updated:
2L05-6
Username: bschauml
Date/Time: 06-24-26_21:55:30
RF Status: Good
Tuner Status: Good
Comment: DRVH=16.500 Dropping out of SELAP above this, very substantial 120 Hz & harmonics on waveforms
Previous OPS DRVH: 19.5
Special Instructions:

Log Number: 4516240Logbook(s): 

• ELOG
• CLOG

Tags: 

• Autolog

Body: LEM 9.19.5 was successfully run for the North Linac on 2026-06-24 21:52:34. The application phase took 00:00:07 to complete.

Log Number: 4516239Logbook(s): 

• ELOG

Entry Makers: yoonBody: 

Currently have a downtime going for zone1L23, RF on-call looking into it. LEM'd NL and SL, though may need to redo after all RF issues resolved. Cavities have been phased in the NL, not in the SL. Tune beam has been up to the 1R, has not been to 2R yet. 1E01 harp swipes have been taken as well.

Log Number: 4516238Logbook(s): 

• ELOG

Body: 

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

Area.Linacs.South

Total Time: 3.150 mins

Log Number: 4516237Logbook(s): 

• ELOG
• CLOG

Tags: 

• Autolog

Body: LEM 9.19.5 was successfully run for the South Linac on 2026-06-24 21:09:36. The application phase took 00:03:01 to complete.

Log Number: 4516236Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: System UN-Masking for: CryoModule
User: eforman
Areas: SouthLinac

CryoModule Devices:
2L14
2L03
2L02
2L04
2L05
2L07
2L06
2L08
2L11
2L09
2L10
2L12
2L15
2L13
2L16
2L19
2L17
2L18
2L20
2L21
2L22
2L23
2L24
2L25
2L26

Log Number: 4516235Logbook(s): 

• ELOG

Body: IDDescriptionPeriodCause 17270Title:
Machine recovery spillover - SL RF

Summary:
Spillover from machine recovery. AES-RF SME is working on SL cavities.