Aggregator

Log Number: 4519194Logbook(s): 

• ELOG

Body: 

Channels: ac:01_AHU01_ZONETEMP, ac:01_AHU02_ZONETEMP, ac:01_AHU03_ZONETEMP, ac:01_AHU04_ZONETEMP, ac:01_AHU05_ZONETEMP, ac:01_AHU6_RackTmpMax, ac:01_AHU7_RackTmpMax, ac:01_AHU8_RackTempMax, ac:01_AHU9_RackTempMax, ac:02_AHU01_ZONETEMP, ac:02_AHU02_ZONETEMP, ac:02_AHU03_ZONETEMP, ac:02_AHU04_ZONETEMP, ac:02_AHU05_ZONETEMP, ac:02_AHU6_RackTmpMax, ac:02_AHU7_RackTmpMax, ac:02_AHU8_RackTempMax, ac:02_AHU9_RackTempMax

Staying below 85F with all equipment on. Note NL RF was off yesterday afternoon.

Log Number: 4519191Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: System Masking for: BeamLossMonitor
User: lrichard
Areas: All

BeamLossMonitor Devices:
ILM0I07
ILM0L01A
ILM0L01B
ILM0L02
ILM2D00A
ILM2D00B
ILM0L04A
ILM0L04B
ILM0L05
ILM0L06A
ILM0L08
ILM0R01
ILM4D00
ILM0R03
ILM0R04
ILM0R06
ILM0R08
ILM0R09
ILM1L01
ILM1L02
ILM6R08
ILM3S00
ILM7S00
ILM9S00
ILM5S10
ILM5E03
ILM7S01
ILM9A01
ILM3E02
ILM5A01
ILM1A04
ILM1A06
ILM1A09
ILM5A10
ILM1A16
ILM1A19
ILM3R10
ILM9R07
ILM1R09
ILM2L03
ILM5R10
ILM5R05
ILM2L01
ILM2T09
ILM8T

Log Number: 4519189Logbook(s): 

• ELOG

Entry Makers: lrichardBody: 

RF is finished in NL.

Log Number: 4519186Logbook(s): 

• ELOG

Body: 

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

Area.Linacs.North

Total Time: 3.033 mins

Log Number: 4519185Logbook(s): 

• ELOG

Entry Makers: settleBody: 

Following yesterday's and today's findings, RF went out to the SL MO rack and experimented with different kinds of shielding. Eventually a configuration was found that eliminated the rash of GLDER and PLDER issues.

Log Number: 4519184Logbook(s): 

• ELOG

Body: 

RF summary for the July 2nd (please phase all the cavities we recovered/worked on these 3 days)

1L04-3 recovery
1L04-8 recovery (+5.1MeV)
1L15-2 HV work

Log Number: 4519183Logbook(s): 

• ELOG
• CLOG

Tags: 

• Autolog

Body: LEM 9.19.5 was successfully run for the North Linac on 2026-07-02 15:19:23. The application phase took 00:01:56 to complete.

Log Number: 4519182Logbook(s): 

• ELOG

Body: IDDescriptionPeriodCause 17328Title:
EESRF recovering 1L04-3

Summary:
EESRF recovering 1L04-3Duration:
16 minutes

Time Down:
02-Jul-2026 15:00

Time Up:

Log Number: 4519181Logbook(s): 

• ELOG
• RFLOG

Tags: 

• Autolog

Body: 

The OPS DRVHs for the following cavities have been updated:
1L04-4
Username: kerns
Date/Time: 07-02-26_15:15:38
RF Status: Good
Tuner Status: Good
Comment: DRVH=9.000 Drive getting weak at 11.0 Mv/m, GASK at~4v with 0.0 RATN.
Previous OPS DRVH: 11
Special Instructions:

Log Number: 4519180Logbook(s): 

• ELOG
• RFLOG

Tags: 

• Autolog

Body: 

The following cavity histories have been updated:
1L04-8
Username: kerns
Date/Time: 07-02-26_15:11:38
RF Status: Good
Tuner Status: Good
Comment: Cavity 8 recovered from tuner issues after tuner checks and RFCM replacement. ODVH= 10.3
Special Instructions: Leave tuner in manual

Maintenance Tag: Component: Other

Log Number: 4519178Logbook(s): 

• ELOG
• RFLOG

Tags: 

• Autolog

Body: 

The following cavity histories have been updated:
1L04-3
Username: kerns
Date/Time: 07-02-26_15:10:18
RF Status: Good
Tuner Status: Bad
Comment: Dang. Cavity 3 not recovered, no gradient in OLT. Needs RFCM like cav. 8.
Special Instructions:

Maintenance Tag: Component: Other

Log Number: 4519176Logbook(s): 

• ELOG
• RFLOG

Tags: 

• Autolog

Body: 

The following cavity histories have been updated:
1L04-8
Username: kerns
Date/Time: 07-02-26_15:08:46
RF Status: Good
Tuner Status: Bad
Comment: Cavity 8 recovered. Cavity 3 still has problem with no gradient found in OLT. Needs RFCM like 8.
Special Instructions: Leave tuner in manual

Maintenance Tag: Component: Other

Log Number: 4519175Logbook(s): 

• ELOG
• RFLOG

Tags: 

• Autolog

Body: 

The following cavity histories have been updated:
1L04-8
Username: kerns
Date/Time: 07-02-26_15:06:03
RF Status: Good
Tuner Status: Good
Comment: Cavity recovered after tuning problems solved. ODVH=10.3 Mv/m and optimized.
Special Instructions: Leave tuner in manual

Maintenance Tag: Component: Other

Log Number: 4519174Logbook(s): 

• ELOG
• RFLOG

Tags: 

• Autolog

Body: 

The following cavity histories have been updated:
1L04-3
Username: kerns
Date/Time: 07-02-26_15:06:03
RF Status: Good
Tuner Status: Good
Comment: Cavity recovered after tuning problems solved. ODVH=10.3 Mv/m and optimized.
Special Instructions:

Maintenance Tag: Component: Other

Log Number: 4519173Logbook(s): 

• ELOG
• SRFLOG

Body: 

No major update.

Log Number: 4519172Logbook(s): 

• ELOG

Tags: 

• ShiftSummary

Body:  CEBAF SHIFT LOG Shift Summary

Start of shift: NL taken to RA for continued YBBS06 work.

Log Number: 4519171Logbook(s): 

• ELOG

Tags: 

• BeamAccounting

Body:  Accelerator PHYSICS STUDIES RESTORE ACC DOWN OFF (SAM) Planned 8 0 0

Log Number: 4519168Logbook(s): 

• ELOG

Entry Makers: kernsBody: 

Had correct KCCU and a reasonable KMAI at ~.8 ma with no KMAS voltage. Ran for a couple of minutes and the CPS dropped on DC Overload. Locked zone back up and found cavity 2 kly. resistor shattered again and also noted ModAnode extreme heat smell. Cavity 2 ModAnode resistor is white corona painted and looks good but cavity 1 resistor is almost burned in half. We will need to check the modanode resistor before plugging cav2 resistor back in.

Log Number: 4519167Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: Destination Masking to: HallB,HallC
User: bbarker

Log Number: 4519166Logbook(s): 

• DCLOG
• ELOG

Entry Makers: dthomasBody: