Aggregator

Log Number: 4483234Logbook(s): 

• ELOG

Body: Currently Disabled Alarms - HALLB

The Following Alarms Have Been Disabled Within the Last 24 Hours
===============================================================
04/03/2026 10:19:01
HALLB=>BOXES=>TAGGERB
eforman
HCO completed on this node
---------------------------
04/03/2026 10:18:21
HALLB=>VACUUM=>VIP2H04
eforman
See OPS-PR 4480391
---------------------------

Log Number: 4483233Logbook(s): 

• ELOG

Body: HALLB=>BOXES=>TAGGERB has been disabled in alarm handler

HCO completed on this node

Log Number: 4483232Logbook(s): 

• ELOG

Body: HALLB=>BOXES=>TAGGERB has been enabled in alarm handler

HCO

Log Number: 4483231Logbook(s): 

• ELOG

Body: HALLB=>VACUUM=>VIP2H04 has been disabled in alarm handler

See OPS-PR 4480391

Log Number: 4483230Logbook(s): 

• ELOG

Body: HALLB=>VACUUM=>VIP2H04 has been enabled in alarm handler

ALH HCO

Log Number: 4483227Logbook(s): 

• ELOG

Body: HALLB has been enabled in alarm handler

Checking out xB ALH in preparation for running

Log Number: 4483214Logbook(s): 

• ELOG

Entry Makers: janakBody: 

Log Number: 4483213Logbook(s): 

• ELOG

Entry Makers: janakBody: 

Log Number: 4483212Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: UNMasked Hall C Normal Target FSD

Log Number: 4483209Logbook(s): 

• ELOG

Body: Calibration ParametersHall:CTarget: Loop 3 4cmPass: 2Note: SHMS angle -10.67,current -396.1Calibrated On:2026-Mar-31 17:58Calibrated By: yoonFile:C-2026-03-31_1758_Loop_3_4cm_Pass-2.hcdIon ChamberExisting Setpoing (rads/hr)New Setpoint (rads/hr)

Log Number: 4483208Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: Masked Hall C Normal Target FSD

Log Number: 4483203Logbook(s): 

• ELOG

Body: 

Emergent work, PTW -10422 on issue. Facilities reports that this is an additional pump and this work will have no impact on Operations. Approved.

Log Number: 4483200Logbook(s): 

• ELOG

Tags: 

• MCC8am

Body:  CEBAF SHIFT LOG Shift Summary

Start of shift: Wrapped up HC BCM calibration.

Log Number: 4483197Logbook(s): 

• ELOG

Entry Makers: deirBody: 

Figures 1-3: FSD tripped on the faults shown in Figure 1, but looking at the master node, the only node showing a "Fault" was IN01_1 for BLA. The NL14 node has an instantaneous fault for the RF cavity in 1L03, but the other fault did not propagate its way up the tree.

Figs 4-6: This is after hitting FSD Reset once. The FSD never clears, but it plays the FSD trip again once the fault from NL14 made its way up to the master node.

Figs 7-9: I pressed FSD Reset again. The faults on NL14 cleared, but the ones on IN01_1 remained...again another FSD Trip sound played.

Log Number: 4483196Logbook(s): 

• ELOG
• LERFLOG

Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Schoene
DATE:             04/03/2026
SHIFT:               Day

The operator has read the following:

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

Log Number: 4483195Logbook(s): 

• ELOG
• LERFLOG

Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Janak
DATE:             04/03/2026
SHIFT:               Day

The operator has read the following:

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

Log Number: 4483190Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: saver ran from opsl632

Saved: bjacob 04-03-26 07:56:45 {A:i B:5 C:2 E:345 A=BS B=BS C=CW D=BS 0R08=30.06 No dumps in. Start of Day Shift.

Log Number: 4483187Logbook(s): 

• ELOG

Body: 

Channels: R312XCRFP, R312RFONr

Log Number: 4483186Logbook(s): 

• ELOG
• LERFLOG

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

Date : 04-03-26
Time : 07:32:24
Day : Friday
Shift : Day

Crew Chief : Blackshaw
Program Deputy: Malace
Team : E
Arm : Janak
Designated SSO: Schoene
LERF Operator:
Operators : Schoene, Janak

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

Log Number: 4483181Logbook(s): 

• ELOG

Tags: 

• ShiftSummary

Body:  CEBAF SHIFT LOG Shift Summary

Start of shift: 12 uA Cw to Hall C.