Aggregator

Log Number: 4504907Logbook(s): 

• ELOG

Body: Calibration ParametersHall:DTarget: 1.1x10-3 Al 100umPass: 5.5Note: Calibrated On:2026-May-02 07:48Calibrated By: msmithFile:D-2026-05-02_0748_1.1x10-3_Al_100um_Pass-5.5.hcdIon ChamberExisting Setpoing (rads/hr)New Setpoint (rads/hr)East Wa

Log Number: 4504908Logbook(s): 

• HDLOG
• ELOG

Entry Makers: victorcBody: 

Log Number: 4504882Logbook(s): 

• ELOG
• LERFLOG

Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Price
DATE:             05/27/2026
SHIFT:               Owl

The operator has read the following:

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

Log Number: 4504881Logbook(s): 

• ELOG
• LERFLOG

Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Chaudhary
DATE:             05/26/2026
SHIFT:               Owl

The operator has read the following:

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

Log Number: 4504878Logbook(s): 

• ELOG
• RFLOG

Entry Makers: dturnerBody: smartRAT V3-4 on opsrfdaqnl1

To view waveforms from a timestamp:

ssh opsrfdaqnl1 "smartRAT -m DAQ -d /data/fast_daq/<timestamp>"


To view waveforms of the top 25 from this report:

ssh opsrfdaqnl1 "smartRAT_view_daily_top25 2026-05-19-2026-05-26"


Data directory: /cs/prohome/apps/s/smartRAT2/3-4/fileio/pca_data/output_cavityOutDet/calibrated_cavitylevel_centralize_tsfresh_minimal_gmespmes/whole/rcntnp/2026-05-19-2026-05-26/PCA/

Log Number: 4504873Logbook(s): 

• ELOG

Entry Makers: dchriBody: 

Had ~2 hour run and been smooth sailing all night

I attribute it to the reduction in current Gun uA < 50
Which seems to have ended the injector charging/discharging events

FIG. 1
Been running ALL energy Locks (INJ, 1A, 2A)
I suppose that's been helping as well

FIG. 2, 5
Hard to say if the Injector A1(x,y) PID locks have helped or not.
However, they have also be running all night.

Log Number: 4504866Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: saver ran from opsl632

Saved: jhoward 05-26-26 23:13:07 {A:i B:5 C:3 E:345 A=BS B=CW C=CW D=CW 0R08=29.64 No dumps in.

Log Number: 4504864Logbook(s): 

• ELOG
• LERFLOG

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

Date : 05-26-26
Time : 23:11:05
Day : Tuesday
Shift : Owl

Crew Chief : Howard
Program Deputy: Saitiniyazi
Team : D
Arm : Price
Designated SSO: Chaudhary
LERF Operator:
Operators : Price, Chaudhary

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

Log Number: 4504862Logbook(s): 

• ELOG

Tags: 

• ShiftSummary

Body:  CEBAF SHIFT LOG Shift Summary

Start of shift: CW to halls B, C, and D.

Log Number: 4504861Logbook(s): 

• ELOG

Tags: 

• BeamAccounting

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

Log Number: 4504859Logbook(s): 

• ELOG

Entry Makers: eformanBody: 

Nice!

Log Number: 4504827Logbook(s): 

• MOLLER
• ELOG

Tags: 

• Moller
• PD

Entry Makers: jonesgaskelldwineskashydougberdnikciprianBody: 

Hall A techs started mixing and pouring grout, team was able, to pour two forms for the Drift pipe base and one form for Down stream enclosure. Team continued with building of forms for Pion donut base. EIC techs started installing water lines, for MPS filter system.

Log Number: 4504807Logbook(s): 

• HBLOG
• ELOG

Entry Makers: dchriBody: 

Just some perspective on how much of an effect helium has on the Halo's in xB

Target Pressure drops -1.15 mTorr (helium filling)

HPS downstream +30900 counts (4900% increase)
Midstream +49437 counts (5200% increase)

Log Number: 4504788Logbook(s): 

• ELOG

Entry Makers: dchriBody: 

Just an observation...

Gun uA < ~50 seems to drastically eliminate any noticeable Injector charging/discharging events

Gun uA > ~50 is where charging/discharging events can be expected

Log Number: 4504783Logbook(s): 

• ELOG

Tags: 

• Autolog
• MCC8am

Body:  */ ATLis Comments Posted 18:00 Monday May 25 through 18:00 Tuesday May 26 AES I&C Systems swap IBC3H05 omega controller

2026-05-26 09:05 - Joseph Sawyer

swapped controller,

Log Number: 4504771Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: saver ran from opsl05

Saved: eforman 05-26-26 17:07:39 {A:i B:5 C:3 E:345 A=BS B=CW C=CW D=CW 0R08=27.81 No dumps in.

Log Number: 4504769Logbook(s): 

• ELOG

Body: 

Estimate ~2 shifts (based on previous measurement cycles) if things go well...

Log Number: 4504757Logbook(s): 

• ELOG
• SRFLOG

Body: 

VIP1L06B
- Investigated spikes, valve closures
- Cannot directly blame 1L06 cryomodule problems, has been off since 5/24
- Pressure bumps since early March
- No problems from plasma processing of 1L05 back in Oct-Nov. 2025
- Will need appendage pump during high energy transition to address issue

Log Number: 4504755Logbook(s): 

• ELOG
• LERFLOG

Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Christian
DATE:             05/26/2026
SHIFT:               Swing

The operator has read the following:

Log Number: 4504753Logbook(s): 

• ELOG
• LERFLOG

Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Yoon
DATE:             05/26/2026
SHIFT:               Swing

The operator has read the following:

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