Aggregator

Log Number: 4494299Logbook(s): 

• HCLOG
• ELOG

Entry Makers: msmithBody: 

Log Number: 4494297Logbook(s): 

• ELOG

Body: Calibration ParametersHall:CTarget: Loop 2 10cmPass: 2Note: Low EnergyCalibrated On:2026-May-03 03:28Calibrated By: samariFile:C-2026-05-03_0328_Loop_2_10cm_Pass-2.hcdIon ChamberExisting Setpoing (rads/hr)New Setpoint (rads/hr)Compton

Log Number: 4494296Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: UNMasked Hall C Normal Target FSD

Log Number: 4494294Logbook(s): 

• ELOG

Entry Makers: samariBody: 

Log Number: 4494293Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: Masked Hall C Normal Target FSD

Log Number: 4494288Logbook(s): 

• ELOG

Entry Makers: samariBody: 

Going up to 18.5 uA to hall C we saw a large uptick in hall B upstream halo rates as well as IIX6S01 dose. Going off crest +1.3 degrees in the south lowered the upstream halo rates by a factor of 10 as well as decreased the 6S01 ose by 4. The only negative is a slight uptick in dose at 4E02.

Log Number: 4494281Logbook(s): 

• ELOG

Entry Makers: samariBody: 

Log Number: 4494279Logbook(s): 

• ELOG

Body: Calibration ParametersHall:CTarget: 10cm_DummyPass: 2Note: File generated from archiverCalibrated On:2026-May-03 00:00Calibrated By: deirFile:C-2026-05-03_0000_10cm_Dummy_Pass-2_archiver_generated.hcdIon ChamberExisting Setpoing (rads/hr)New Setpoint (rads/hr)

Log Number: 4494277Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: Masked Hall C Normal Target FSD

Log Number: 4494268Logbook(s): 

• ELOG

Entry Makers: samariBody: 

Over a scale of a few months starting in early march this pump has increased from 35 to 80.

Log Number: 4494257Logbook(s): 

• ELOG
• LERFLOG

Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Smith
DATE:             05/03/2026
SHIFT:               Owl

The operator has read the following:

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

Log Number: 4494254Logbook(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 2026-04-26-2026-05-03"


Data directory: /cs/prohome/apps/s/smartRAT2/3-4/fileio/pca_data/output_cavityOutDet/calibrated_cavitylevel_centralize_tsfresh_minimal_gmespmes/whole/rcntnp/2026-04-26-2026-05-03/PCA/

Log Number: 4494253Logbook(s): 

• ELOG
• LERFLOG

Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Samari
DATE:             05/03/2026
SHIFT:               Owl

The operator has read the following:

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

Log Number: 4494248Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: saver ran from opsl05

Saved: deir 05-03-26 23:26:48 {A:i B:5 C:2 E:345 A=BS B=CW C=CW D=CW 0R08=6.96 No dumps in.

Log Number: 4494243Logbook(s): 

• ELOG
• LERFLOG

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

Date : 05-03-26
Time : 23:18:52
Day : Sunday
Shift : Owl

Crew Chief : Deir
Program Deputy: Sereno
Team : A
Arm : Smith
Designated SSO: Samari
LERF Operator:
Operators : Samari, Smith

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

Log Number: 4494240Logbook(s): 

• ELOG

Tags: 

• ShiftSummary

Body:  CEBAF SHIFT LOG Shift Summary

Start of shift: CW Beam to xB/C/D.

Log Number: 4494239Logbook(s): 

• ELOG

Tags: 

• BeamAccounting

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

Log Number: 4494236Logbook(s): 

• ELOG
• RFLOG

Entry Makers: alexsBody: 

Twice now, the cavity's tuner position readback has jumped -60k steps and triggered a bad position error. It's definitely a faulty readback since there is no change in GMES or forward power, so leaving the cavity on for now, but could use addressing on a maintenance day.

Log Number: 4494197Logbook(s): 

• ELOG
• LERFLOG

Body: The following entry was placed in the Accelerator Bypassed-Interlocks Log (ABIL) Device: OM216 Function: Oxygen Monitor Location: LERF User Lab #4 Purpose: Bypassed for alarms until replaced/recalibrated. Adjacent head OM215 still functional Exp.

Log Number: 4494193Logbook(s): 

• HDLOG
• ELOG

Entry Makers: alexsBody: 

Hall D's positions have been very swingy since bringing them up, and it appears the PID orbit locks are partially to blame. When the PID locks are engaged, almost every change to the associated magnet has been the maximum allowed value, 150 BdL, suggesting the PID parameters are not set to helpful values. I am also no expert on these loops, but for the time being, changing the max change from 150 to 30 has reduced the amplitude of the X position oscillations.