Aggregator

Log Number: 4478267Logbook(s): 

• ELOG

Entry Makers: janakBody: 

Touched up horizontal steering slightly in 7L and 7A using 6R, 7S/E and 7A correctors. Next step is the dp/p correction which should allow some of the corrections in 7A to be minimized

Log Number: 4478264Logbook(s): 

• ELOG

Body: 

Although it may seem obvious, both Heliax and RFoF cables are sensitive to temperature changes. As outdoor temperatures fluctuate, the phase between accelerator buildings will drift. The gang phases between zones will vary based on the temperatures of the service buildings, which are not stable and will require constant monitoring. While the main MO/LO line is temperature-stabilized, all LLRF systems and associated cables are still affected by these temperature changes.

Log Number: 4478263Logbook(s): 

• POLOG
• ELOG

Body: 
Record

Log Number: 4478261Logbook(s): 

• ELOG

Tags: 

• MCC8am

Body:  CEBAF SHIFT LOG Shift Summary

Start of shift: Beginning Arc 4 ORFP

Log Number: 4478260Logbook(s): 

• ELOG

Entry Makers: bjacobBody: 

SME Requested

Figure 1 shows as found. Figure 2 is the Configuration reference. Figure 3 is final configuration.

Log Number: 4478258Logbook(s): 

• ELOG
• LERFLOG

Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Humphry
DATE:             03/19/2026
SHIFT:               Day

The operator has read the following:

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

Log Number: 4478257Logbook(s): 

• ELOG
• LERFLOG

Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Janak
DATE:             03/19/2026
SHIFT:               Day

The operator has read the following:

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

Log Number: 4478255Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: saver ran from opsl632

Saved: bjacob 03-19-26 07:40:30 {A:i B:5 C:2 E:345 A=Tune B=BS C=BS D=BS 0R08=5.22 7R dump in. dump(s) in. Start of day shift. 7S,R steering in progress.

Log Number: 4478254Logbook(s): 

• ELOG

Body: 

After two days of monitoring the magnet has not shown any signs of noise.
Closing JLab-PTW-10260

Log Number: 4478253Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: saver ran from opsl632

Saved: victorc 03-19-26 07:16:14 {A:i B:5 C:2 E:345 A=BS B=BS C=BS D=BS 0R08=0.00 7R dump in. dump(s) in.

Log Number: 4478252Logbook(s): 

• ELOG
• LERFLOG

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

Date : 03-19-26
Time : 07:12:14
Day : Thursday
Shift : Day

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

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

Log Number: 4478251Logbook(s): 

• ELOG

Entry Makers: kpriceBody: 

Log Number: 4478250Logbook(s): 

• ELOG

Tags: 

• ShiftSummary

Body:  CEBAF SHIFT LOG Shift Summary

Start of shift: Correcting V. Disp in 4A after 5E match.

Log Number: 4478249Logbook(s): 

• ELOG

Body: 

18th March work:
- Hall D Hodoscope fiducialization and alignment

19th March work map:
- (test lab) Hall C Super Harp fiducialization

Log Number: 4478248Logbook(s): 

• ELOG

Tags: 

• BeamAccounting

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

Log Number: 4478247Logbook(s): 

• DCLOG
• ELOG

Entry Makers: victorcBody: 

At least 10 mismatches the last few days. Always retakes setpoint fine, but could use a trim card swap.

Rack SA01B07 channel 1.

Log Number: 4478246Logbook(s): 

• ELOG
• BTLOG

Tags: 

• Autolog

Body: dogCalc V0-14 download

hostname: opsl01
CED workspace: OPS
CED login_key: pro

Log Number: 4478245Logbook(s): 

• BTLOG
• ELOG

Entry Makers: victorcBody: 

Figures 1 & 2: Started seeing wire sum loss at 3A24-24 and 5A23-24 at 4.4 VAC with RF.
Figures 3 & 4: Started seeing wire sum loss at 3A24-24 and 5A23-24 at 2.8 VAC with 1E01V
Figures 5 & 6: Started seeing wire sum loss at 3A24-24 and 5A23-24 at 2.9 VAC with 1S09V.
Figures 7 & 8: Started seeing wire sum loss at 3A24-24 and 5A23-24 at 4.9 VAC with 1S08H.
Figures 9 & 10: Started seeing wire sum loss at much of 3A, the beginning and end of 5A, and all of 5R at 4.5 VAC with 1E01H.

Log Number: 4478244Logbook(s): 

• DCLOG
• ELOG

Entry Makers: victorcBody: 

Log Number: 4478239Logbook(s): 

• ELOG

Body: 

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

Area.Linacs.North

Total Time: 1.200 mins