Aggregator

Log Number: 4473769Logbook(s): 

• ELOG
• BTLOG

Tags: 

• Autolog

Body: eDT V2-40-2 Design Setpoints Download - Downloading MQA setpoints in setup_345 workspace
Downloading MQA setpoints in setup_345 workspace
hostname: opsl04
CED workspace: setup_345
CED login_key: pro

Log Number: 4473768Logbook(s): 

• POLOG
• ELOG

Entry Makers: chgarciaBody: 

The gun HV tripped off yesterday with no indication of precursor. See Fig. 1 and 2. As noted in the ELOG, the highest pressure response was at the gun IP VIP2I00, propagating downstream. V-Wien was off, H-Wien was set only to +/- 2 kV. See Fig. 3.

The gun recoevered w/o issues, see Fig. 1.

Log Number: 4473766Logbook(s): 

• ELOG

Tags: 

• MCC8am

Body:  PD SUMMARY

Injector: Spin Calibration and Investigation. 

CIS:

Log Number: 4473764Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: High Voltage was turned off for:
R02
R03
R04

Log Number: 4473763Logbook(s): 

• ELOG
• POLOG

Tags: 

• Autolog

Body: 

Log Number: 4473762Logbook(s): 

• ELOG
• POLOG

Tags: 

• Autolog

Body: 

Log Number: 4473759Logbook(s): 

• ELOG
• LERFLOG

Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Blackshaw
DATE:             03/02/2026
SHIFT:               Day

The operator has read the following:

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

Log Number: 4473758Logbook(s): 

• ELOG
• LERFLOG

Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Janak
DATE:             03/02/2026
SHIFT:               Day

The operator has read the following:

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

Log Number: 4473757Logbook(s): 

• ELOG

Entry Makers: chumphryBody: 

Log Number: 4473756Logbook(s): 

• ELOG

Entry Makers: chumphryBody: 

Log Number: 4473755Logbook(s): 

• ELOG

Entry Makers: deirBody: 

The attached report outlines all remaining Not Ready components that are required for Operations to proceed up to the xBCD Shield Wall destinations. The main goal of this is to highlight work that needs to be done in order to send beam to the 1R and 2R dumplettes this weekend.

Show Stoppers for sending beam to the 1R Dumplette:
MDB1L25V
MDB1L26H
VBV1L11A
eDT
CEBAF Pre-Ops Checklist
Accelerator Alarm Handler - IIRC this was done Friday, but not ugpraded to checked.

Log Number: 4473750Logbook(s): 

• ELOG
• LERFLOG

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

Date : 03-02-26
Time : 07:23:38
Day : Monday
Shift : Day

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

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

Log Number: 4473749Logbook(s): 

• ELOG

Body: 

Task was not worked on Friday due to a schedule change. Task will be completed today.

Log Number: 4473746Logbook(s): 

• POLOG
• ELOG

Body: Spot Location: (13250,19250), Charge: 5.233156999999999

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

Log Number: 4473744Logbook(s): 

• POLOG
• ELOG

Body: 

- MOLLER beam studies: did RTP HV and RHWP scans.
- Measured Hall D electron beam polarization.
- Calibrated Horizontal Wien.
- Mott setup with strong focusing in HWien.
- Battery studies planned for Monday.

Log Number: 4473743Logbook(s): 

• POLOG
• ELOG

Entry Makers: kpriceBody: 

Vacuum looks normal, decarads are quiet. No beam in the machine at time of trip, nor any since recovery. Cause of trip is still unclear.

Log Number: 4473742Logbook(s): 

• ELOG
• POLOG

Tags: 

• Autolog

Body: 

Log Number: 4473741Logbook(s): 

• POLOG
• ELOG

Entry Makers: jhowardBody: 

We had a spike on vacuum in the injector near the gun, with the highest spike at 2I00, the gun vacuum. Nothing on the decarads or other interlocks. We will try to recover.

Log Number: 4473739Logbook(s): 

• ELOG
• LERFLOG

Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Howard
DATE:             03/01/2026
SHIFT:               Owl

The operator has read the following:

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

Log Number: 4473740Logbook(s): 

• POLOG
• ELOG

Entry Makers: bschaumlBody: 

Checked centering through the chopper, prebuncher phase, and B/D laser phases for both saves up to 1D as these were areas the SME had expressed concern about when performing his setup on the 23rd. I also took viewer walks and took note of collinearity. Prebuncher phase for the SME setup from the 23rd was pretty much spot on but laser phases required some correction. Said SME dropped by to check up on things and mentioned he hadn't checked phases for the other lasers during his setup. Prebuncher phase for the operator setup was close, but not quite as close as the SME setup.