Aggregator

Log Number: 4471076Logbook(s): 

• ELOG

Body: 

Attempted to align the SL into the camera without success. Found a vertical strip at turning mirror motor position X=6.98mm & y=7.90mm. These values are close to lab alignment numbers. Will need to have about have a day access to check the alignment downstream of the turning mirror.

Log Number: 4471075Logbook(s): 

• ELOG
• RADLOG

Entry Makers: bjacobBody: 

Log Number: 4471073Logbook(s): 

• ELOG
• LERFLOG

Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Janak
DATE:             02/16/2026
SHIFT:               Day

The operator has read the following:

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

Log Number: 4471072Logbook(s): 

• ELOG

Entry Makers: dchriBody: 

OPSl08 Suddenly froze and had to be rebooted. System restored and set to it's normal configuration

Log Number: 4471071Logbook(s): 

• ELOG
• INCLOG

Body: 

All valves on crate remotely cycled open and closed.

Upstream/Downstream interlocks for all valves verified.

Verified VFV2L02 fires closed when two adjacent pumps faulted.

FSD Interlock "Beam Permit" good on crate, but not clear on FSD Node 2L03_2, CH1.
- Will need to check cable from crate to FSD Electrical card interface.

Log Number: 4471070Logbook(s): 

• ELOG

Entry Makers: dchriBody: 

Wien back to -90 deg to soak (per request in shift plans)

Log Number: 4471069Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: Destination Masking to: Inj500KeV
User: dchri

Log Number: 4471067Logbook(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: 4471066Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: High Voltage was turned off for:
R22
R23
R24
R25
R26
R27
R28
R29
R2A
R2B
R2C
R2D
R2E
R2F
R2G
R2H
R2I
R2J
R2K
R2L
R2M
R2N
R2O
R2P
R2Q

Log Number: 4471065Logbook(s): 

• ELOG
• LERFLOG

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

Date : 02-16-26
Time : 07:22:34
Day : Monday
Shift : Day

Crew Chief : Blackshaw
Program Deputy: Buttles
Team : E
Arm : RadCon
Designated SSO: Janak
LERF Operator:
Operators : Janak

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

Log Number: 4471064Logbook(s): 

• ELOG

Body: 

1) Braze prep.
2) Braze repair.
3) Install G-10 conductor insulating plates and steel backer plate assy.
4) Make new hoses where needed and install at manifold and coil sides.
5) Conduct whole make LCW leak check (30-minutes), ensure we have a leak tight magnet.

These steps are completed; remainder will be worked on today. If everything passes, we will install it tomorrow.

Log Number: 4471063Logbook(s): 

• ELOG
• RFLOG

Entry Makers: kpriceBody: 

Thought open-loop tuning might help, but at 0 GLOD with both loops open, CRFP was stuck at "0.48". GMES responded to changing GLOD, but I didn't want to take it any further if it was actually quenching at low gradient. GSET0 for now.

Log Number: 4471062Logbook(s): 

• ELOG
• RFLOG

Tags: 

• Autolog

Body: 

The following cavities have been GSET 0:
2L19-6
Username: kprice
Date/Time: 02-16-26_06:52:52
RF Status: Bad
Tuner Status: Good
Comment: GSET 0 - stepped off +100k - Quenches at all gradients; stuck CRFP readback
Special Instructions:

Maintenance Tag: Component: Operator Entry - See SME

Log Number: 4471061Logbook(s): 

• POLOG
• ELOG

Body: 

- Studied HWien focusing at 0/90 degrees.
- Beam QE scans.
- Investigating laser position and QE/beam current variations.

Log Number: 4471060Logbook(s): 

• POLOG
• ELOG

Body: Spot Location: (13250,19250), Charge: 1.7949060000000001

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

Log Number: 4471058Logbook(s): 

• ELOG

Entry Makers: dchriBody: 

Sudden drop in Hall A Laser AMP Output Power. Attempt to toggle the Emission, but problem persist. OPS-PR for now

Log Number: 4471057Logbook(s): 

• ELOG

Body: 

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

MFX2I01
MFX1I03
MFG1I04A
MFX0I01
MFA0I03
MFD0I04
MFA0I05
MFX0I05
MFX0I06
MFX0I07
MQJ0L01
MQJ0L02
MQJ0L02A
MQJ0L03A
MQJ0L03
MQJ0L04
MQJ0L05
MQD0L06
MQB0L07
MQB0L08
MQB0L09
MQB0L10
MQD0R01
MQD0R02
MQD0R03
MQD0R04
MQD0R05
MQD0R06
MQD0R07
MQD0R08
MQD0R09

The following magnets were REMOVED from the CYCLING LIST by the user:
MQJ0L02A
MQJ0L03A

Log Number: 4471056Logbook(s): 

• ELOG

Entry Makers: dchriBody: 

prior to working through some Injector Procedures, Wien's are going to be 0 deg

After I'm done, I'll set the Vert Wien back to -90 deg to soak (per request in shift plans)

Fig. 1 (before)

Fig. 2 (after)

Log Number: 4471055Logbook(s): 

• ELOG
• LERFLOG

Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Christian
DATE:             02/16/2026
SHIFT:               Owl

The operator has read the following:

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

Log Number: 4471054Logbook(s): 

• ELOG

Entry Makers: bschaumlBody: 

Reduced by 0.5