Aggregator

Log Number: 4496778Logbook(s): 

• ELOG

Entry Makers: chumphryBody: 

Log Number: 4496776Logbook(s): 

• BTLOG
• ELOG

Entry Makers: jhowardBody: 

I took another look at vacuum over the course of a few days. It looks like the vacuum around 0I00 and 0I01 got worse last owl shift, around the time 0I05 started to drift. It looks like things are starting to calm down there, but there is no real correlation with the orbit jumps we have been seeing (Fig 1).

There is noise on the other 0I vacuum, but not nearly as much (Fig 2). 0I02-04A also show some jumps that happen at the same time as the orbit (Fig 3/4).

Log Number: 4496775Logbook(s): 

• ELOG

Entry Makers: chumphryBody: 

Log Number: 4496772Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: saver ran from opsl632

Saved: chumphry 05-09-26 07:33:53 {A:i B:5 C:2 E:345 A=BS B=CW C=BS D=CW 0R08=0.12 No dumps in.

Log Number: 4496771Logbook(s): 

• ELOG
• LERFLOG

Body: 
THOMAS JEFFERSON NATIONAL ACCELERATOR FACILITY
ACCELERATOR OPERATIONS CREW CHIEF SIGN IN FORM

Date : 05-09-26
Time : 07:31:42
Day : Saturday
Shift : Day

Crew Chief : Humphry
Program Deputy: Drury
Team : X
Arm : RadCon
Designated SSO: Bkackshaw
LERF Operator:
Operators : Blackshaw, Janak

This stamp certifies that the above Crew Chief has read/reviewed/received the following:

Log Number: 4496769Logbook(s): 

• ELOG

Tags: 

• ShiftSummary

Body:  CEBAF SHIFT LOG Shift Summary

Start of shift: CW to B and D, witness beam to C dumplet.

Log Number: 4496768Logbook(s): 

• ELOG

Tags: 

• BeamAccounting

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

Log Number: 4496764Logbook(s): 

• ELOG

Body: IDDescriptionPeriodCause 16886Title:
Optics refinement

Summary:
Checking machine opticsDuration:
20 minutes

Time Down:
09-May-2026 06:26

Time Up:
09-May-2026 06:46

Log Number: 4496763Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: System UN-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
ILM8T

Log Number: 4496762Logbook(s): 

• ELOG

Body: IDDescriptionPeriodCause 16886Title:
Optics refinement

Summary:
Checking machine opticsDuration:
1 minute

Time Down:
09-May-2026 06:33

Time Up:

Log Number: 4496761Logbook(s): 

• ELOG

Body: IDDescriptionPeriodCause 16885Title:
QE Measurement

Summary:
Routine optics measurement.Duration:
8 minutes

Time Down:
09-May-2026 06:17

Time Up:
09-May-2026 06:25

Log Number: 4496760Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: System Masking for: BeamLossMonitor
User: kprice
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: 4496759Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: System UN-Masking for: CryoModule
User: dchri
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: 4496758Logbook(s): 

• POLOG
• ELOG

Body: Spot Location: (13250,19250), Charge: 27.827794999999995

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

Log Number: 4496757Logbook(s): 

• ELOG

Entry Makers: kpriceBody: 

Same current, same restrictions as empty. No changes needed from MCC.

Log Number: 4496755Logbook(s): 

• ELOG

Body: IDDescriptionPeriodCause 16885Title:
QE Measurement

Summary:
Routine optics measurement.Duration:
1 minute

Time Down:
09-May-2026 06:17

Time Up:

Log Number: 4496754Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: System Masking for: CryoModule
User: dchri
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: 4496753Logbook(s): 

• ELOG

Entry Makers: kpriceBody: 

Log Number: 4496750Logbook(s): 

• ELOG

Entry Makers: jhowardBody: 

Trying to see how Hall B's positions react

Log Number: 4496746Logbook(s): 

• ELOG

Entry Makers: kpriceBody: 

We're going to let it sit here for a while to see if it helps out with B stability at all.