Aggregator

Log Number: 4503592Logbook(s): 

• ELOG
• BTLOG

Body: 

Comments:

After LEMing to move gradient from 1L06 to 1L11. Very close to last scan with C.

Laser Used:

C Laser

Sigmas:

Peak 1 - x Sigma: 0.3533 Peak 2 - u Sigma: 0.4850 Peak 3 - y Sigma: 0.5054

Log Number: 4503591Logbook(s): 

• ELOG

Entry Makers: beneschBody: 

Rf on call was unable to remotely turn on 1L06, and they would need to come in to try and fix it.

https://ace.jlab.org/dtm/all-events?qualified=true&incidentId=16997

Log Number: 4503590Logbook(s): 

• ELOG

Entry Makers: beneschBody: 

See Kitty's elog, linked. She's busy with the 1L06 to 1L11 transition so I made this rather than ask her to convert the elog to an Ops-PR.

Log Number: 4503589Logbook(s): 

• ELOG

Entry Makers: kernsBody: 

Cavities 1 ( recent history of arc faults and KBCU, needs RFCM for no RMT 5 read-back) and cavity 5 (dropping HV with filaments and KBCU ) Both were bypassed by operator but still no HV enable. I unbypassed both, saw no errors/faults preventing HV, and called CC to let him know I was coming in to take a look at zone to determine what was up with the CPS HV enables. CC recommended bring up 1L11 that was GSET 0 for energy run last month and the operator brought the zone into RF with a little assistance on cavity 7 GASK railing above 8Mv/m.

Log Number: 4503588Logbook(s): 

• ELOG

Entry Makers: jhowardBody: 

Log Number: 4503587Logbook(s): 

• ELOG

Body: 

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

Area.Linacs.North

Total Time: 1.217 mins

Log Number: 4503586Logbook(s): 

• ELOG
• CLOG

Tags: 

• Autolog

Body: LEM 9.19 was successfully run for the North Linac on 2026-05-24 06:39:48. The application phase took 00:00:10 to complete.

Log Number: 4503585Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: 

FudgeIt 5.0 changed the North Linac fudge factor from 1.001 to 0.996.

Log Number: 4503584Logbook(s): 

• ELOG
• CLOG

Tags: 

• Autolog

Body: LEM 9.19 was successfully run for the North Linac on 2026-05-24 06:37:31. The application phase took 00:01:22 to complete.

Log Number: 4503583Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: 

FudgeIt 5.0 changed the North Linac fudge factor from 0.993 to 1.001.

Log Number: 4503582Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: System Masking for: BeamLossMonitor
User: dchri
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
ILM8T09<

Log Number: 4503580Logbook(s): 

• ELOG
• CLOG

Tags: 

• Autolog

Body: LEM 9.19 was successfully run for the North Linac on 2026-05-24 06:28:18. The application phase took 00:00:49 to complete.

Log Number: 4503579Logbook(s): 

• ELOG
• RFLOG

Tags: 

• Autolog

Body: 

The OPS DRVHs for the following cavities have been updated:
1L11-5
Username: victorc
Date/Time: 05-24-26_06:27:04
RF Status: Good
Tuner Status: Good
Comment: DRVH=4.500 Vacuum stable at this gradient
Previous OPS DRVH: 8
Special Instructions:

Log Number: 4503578Logbook(s): 

• ELOG

Entry Makers: dchriBody: 

Moving forward. LEM north linac. check orbits. try to get back to production

Log Number: 4503577Logbook(s): 

• ELOG
• RFLOG

Tags: 

• Autolog

Body: 

The following cavities have been bypassed:
Zone 1L06
Username: kprice
Date/Time: 05-24-26_06:25:40
RF Status: Good
Comment: Bypassed - stepped off +100k - HPA not ready fault
Special Instructions:

Maintenance Tag: Component: Operator Entry - See SME

Log Number: 4503576Logbook(s): 

• ELOG
• RFLOG

Tags: 

• Autolog

Body: 

The following cavity histories have been updated:
1L11-7
Username: kprice
Date/Time: 05-24-26_06:22:36
RF Status: Good
Tuner Status: Good
Comment: Weak 2.5 W amplifier
Special Instructions:

Maintenance Tag: Component: Operator Entry - See SME

Log Number: 4503575Logbook(s): 

• ELOG
• RFLOG

Tags: 

• Autolog

Body: 

The OPS DRVHs for the following cavities have been updated:
1L11-7
Username: kprice
Date/Time: 05-24-26_06:22:10
RF Status: Good
Tuner Status: Good
Comment: DRVH=8.000 Weak 2.5 A amp
Previous OPS DRVH: 11.8
Special Instructions:

Log Number: 4503573Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: System UN-Masking for: CryoModule
User: victorc
Areas: NorthLinac SouthLinac

CryoModule Devices:
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: 4503571Logbook(s): 

• POLOG
• ELOG

Body: Spot Location: (13250,18750), Charge: 46.92698099999999

Laser Wavelength Atten Setting Laser Power Current HV PS Current QE PV Updated? Update Time/Reason Not Updated (nm) (W) (uA)</T

Log Number: 4503572Logbook(s): 

• HDLOG
• HCLOG
• HBLOG
• ELOG
• RFLOG

Entry Makers: jhowardBody: 

Rf on call was unable to remotely turn on 1L06, and they would need to come in to try and fix it. We are going to first try and turn RF on in 1L11, it is the first one that has enough gradient. We will then check optics at 1E. If all is good, then we will send back to the Halls. If not, we will work with RF on another solution.