Aggregator

Log Number: 4483377Logbook(s): 

• HBLOG
• ELOG

Entry Makers: bschaumlBody: 

Log Number: 4483371Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: System Masking for: BeamLossMonitor
User: bschauml
Areas: All

BeamLossMonitor Devices:
ILM0I07
ILM0L01A
ILM0L01B
ILM0L02
ILM2D00A
ILM2D00B
ILM0L04A
ILM0L04B
ILM0L05
ILM0L06A
ILM0L08
ILM0R01
ILM4D00
ILM0R03
ILM0R04
ILM0R06
ILM0R08
ILM0R09
ILM1L01
ILM1L02
ILM6R08
ILM3S00
ILM7S00
ILM9S00
ILM5S10
ILM5E03
ILM7S01
ILM9A01
ILM3E02
ILM5A01
ILM1A04
ILM1A06
ILM1A09
ILM5A10
ILM1A16
ILM1A19
ILM3R10
ILM9R07
ILM1R09
ILM2L03
ILM5R10
ILM5R05
ILM2L01
ILM2T09
ILM8T

Log Number: 4483368Logbook(s): 

• ELOG

Entry Makers: lrichardBody: 

Attached is Hall B Pre-Operations Checklist

Log Number: 4483366Logbook(s): 

• ELOG
• RFLOG

Entry Makers: beneschBody: 

After reading Adam's comment on the linked entry I ran the app on the last 24 hours. All of the suspicious events are in 1L08 with the first three cavities implicated in all but two (box at lower right of figure). Those cavities are providing only 7.6 MeV per figure 3. Per figure 6, all but one cavity in 1L09 could be recovered. Per figure 7, one would merely have to restore cavity 1L09-1 and GSET-0 1L08-1,2,3 to match present predicted arc fault rate. 34 BLA faults in the last day far outway the time required to make the RF setup change.

Log Number: 4483361Logbook(s): 

• ELOG

Body: 

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

Area.Halls.HallB.Hall

The following magnets were REMOVED from the CYCLING LIST by the user:
MQR2C05
MQR2C06
MQR2C07
MQR2C09
MQR2C08
MQR2C10
MQR2C11
MQR2C12
MQR2C13
MQR2C14
MQR2C15
MQR2C16
MQR2C17
Total Time: 3.033 mins

Log Number: 4483360Logbook(s): 

• ELOG
• BTLOG

Tags: 

• Autolog

Body: eDT V2-40-4 Design Setpoints Download

hostname: opsl01
CED workspace: OPS
CED login_key: pro

Log Number: 4483358Logbook(s): 

• ELOG

Body: 

Hall B FSD card 2H02 new input (#7) for VBV2H00B has been tested and operation verified. 2H02 card in SRM has been updated to ready.

Log Number: 4483356Logbook(s): 

• ELOG

Tags: 

• Autolog
• MCC8am

Body:  */ ATLis Comments Posted 18:00 Thursday April 02 through 18:00 Friday April 03 AES RF Systems Change & Repair FDU For IOT 1

2026-04-03 12:04 - Matt Jehle

The spare FDU rece

Log Number: 4483354Logbook(s): 

• ELOG

Entry Makers: bschaumlBody: 

Took a couple minutes to balance the dipole string with 2A so we could get the FFB energy lock on.

Log Number: 4483350Logbook(s): 

• ELOG

Body: IDDescriptionPeriodCause 16636Title:
Balancing Energy Lock with xC Dipole String

Summary:
Made small adjustments to the dipole using tune mode beamDuration:
4 minutes

Time Down:
03-Apr-2026 17:36

Log Number: 4483349Logbook(s): 

• ELOG

Body: IDDescriptionPeriodCause 16636Title:
Balancing Energy Lock with xC Dipole String

Summary:
Made small adjustments to the dipole using tune mode beamDuration:
4 minutes

Time Down:
03-Apr-2026 17:36

Log Number: 4483339Logbook(s): 

• ELOG

Entry Makers: kernsBody: 

Corrected all comm errors and KMAI, ARC detector faults and other faults that were causing RF FSD's that were dropping beam on this GSET 0 zone . Got everything comm'ing correctly after ICNL2 but decided to bypass the entire zone if it decides to act up again over the weekend. Call CC to let him know !!

Log Number: 4483332Logbook(s): 

• ELOG
• LERFLOG

Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Yoon
DATE:             04/03/2026
SHIFT:               Swing

The operator has read the following:

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

Log Number: 4483329Logbook(s): 

• ELOG
• LERFLOG

Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Schaumloffel
DATE:             04/03/2026
SHIFT:               Swing

The operator has read the following:

Log Number: 4483321Logbook(s): 

• ELOG

Body: 

Troubleshooting of 2L03 continues. Choke and it's mounting insulators Hi-potted to 15Kv. Nothing found. DC Overload still persisted. Troubleshooting to continue Monday. Techs: G. Kepler, X. Gomez and S. Holben

Log Number: 4483320Logbook(s): 

• ELOG
• LERFLOG

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

Date : 04-03-26
Time : 15:50:17
Day : Friday
Shift : Swing

Crew Chief : Richardson
Program Deputy: Malace
Team : X
Arm : Schaumloffel
Designated SSO: Yoon
LERF Operator:
Operators : Schaumloffel, Yoon

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

Log Number: 4483318Logbook(s): 

• ELOG

Entry Makers: kernsBody: 

Restored communications and cleared errors after Camac crate accidently shut off with zone in RF. All RF restore but had problems with cavity 8 quenching at ODVH of 8.932 Mv/m. Any gradient above 8.8 Mv/m would Quench after several attempts to reach 8.932 Mv/m previously running (actually 8.857 Mv/m as measured off plots.) Informed CC Adam that it is good to go and he will update drivehigh to 8.8Mv/m. Anything close to 8.9 Mv/m and it Quenches. Cavity 7 had some low heaters until 380 counts but it was ok at 600 second finish, just to note.

Log Number: 4483316Logbook(s): 

• ELOG
• LERFLOG

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

Date : 04-03-26
Time : 14:51:37
Day : Friday
Shift : Swing

Crew Chief : Richardson
Program Deputy: Malace
Team : C
Arm : Anthony
Designated SSO: Shenenberger
LERF Operator:
Operators : Anthony, Shenenberger, Shriner

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

Log Number: 4483315Logbook(s): 

• ELOG

Tags: 

• ShiftSummary

Body:  CEBAF SHIFT LOG Shift Summary

Start of shift: Quietly sending CW to HC

Log Number: 4483314Logbook(s): 

• ELOG

Tags: 

• BeamAccounting

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