Aggregator

Log Number: 4518659Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: saver ran from opsl02
Data from: /usr/opdata/burt/allsnap/06-30-26_01:25:46
Restored file: /tmp/06-30-26_08:01:08.snap

Log Number: 4518658Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: saver ran from opsl02

Saved: samari 06-30-26 08:00:55 {A:i B:1 C:3 E:1060 A=BS B=BS C=BS D=BS 0R08=0.00 0R08 dump in. Autosave prior to restore.

Log Number: 4518657Logbook(s): 

• POLOG
• ELOG

Body: 
Laser C Set to 500 MHz NamePVInitialNow Frequency StringpgunFreqDiv:C:frequency250 MHz500 MHz FrequencypgunFreqDiv:C:frequencyVal249.5499 LLRF PhaseR0L3PSET17.25-45 LLRF FrequencyR0LCNTL1r1

Log Number: 4518655Logbook(s): 

• BTLOG
• ELOG

Entry Makers: samariBody: 

All save #27393 for when we need to move to the rep rate.

Log Number: 4518652Logbook(s): 

• ELOG

Body: 

JC5A30 & 31 show higher steel core temps than surrounding JC's. As a precautionary step coil flow check we be done as well as flushing 21.
n

Log Number: 4518650Logbook(s): 

• ELOG
• INCLOG

Entry Makers: mmueller

Log Number: 4518649Logbook(s): 

• ELOG

Tags: 

• Readme

Entry Makers: msmithBody: 

Log Number: 4518648Logbook(s): 

• ELOG
• LERFLOG

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

Date : 06-30-26
Time : 07:18:32
Day : Tuesday
Shift : Day

Crew Chief : Schoene
Program Deputy: Nissen
Team : B
Arm : Thomas
Designated SSO: Barker
LERF Operator:
Operators : Barker, Thomas

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

Log Number: 4518647Logbook(s): 

• ELOG

Tags: 

• ShiftSummary

Body:  CEBAF SHIFT LOG Shift Summary

Start of shift: Down for Arc5 Overtemp, SL in PP

Log Number: 4518646Logbook(s): 

• ELOG

Tags: 

• BeamAccounting

Body:  Accelerator PHYSICS STUDIES RESTORE ACC DOWN OFF (SAM) Planned 7 0 0

Log Number: 4518645Logbook(s): 

• ELOG

Body: 

Be sure the relevant PTW is on-issue before proceeding. Task approved. The NL will remain locked up today. The SL will drop to Restricted Access.

Log Number: 4518644Logbook(s): 

• ELOG

Body: 

Once the PTW is on-issue this task is approved.

Log Number: 4518643Logbook(s): 

• ELOG
• INCLOG

Body: 

Cycled the Hall D Harps using the pre-amp test signal. ADC read backs and encoder position read backs are good, hot check out is complete. The harps are fully operational and ready for beam.

See log entries for details:

Log Number: 4518642Logbook(s): 

• ELOG

Body: 

Comments:

HCO complete, this harp is ready for beam.

Laser Used:

None

Sigmas:

Peak 1 - x Sigma: 0.0493 Peak 2 - u Sigma: 0.4627 Peak 3 - y Sigma: 0.6675

Log Number: 4518641Logbook(s): 

• ELOG

Body: 

Comments:

HCO complete, this harp is ready for beam.

Laser Used:

None

Sigmas:

Log Number: 4518640Logbook(s): 

• ELOG

Body: 

Comments:

HCO complete, this harp is ready for beam.

Laser Used:

None

Sigmas:

Log Number: 4518639Logbook(s): 

• ELOG

Body: 

Comments:

HCO complete, this harp is ready for beam.

Laser Used:

None

Sigmas:

Log Number: 4518636Logbook(s): 

• ELOG

Body: IDDescriptionPeriodCause 17303Title:
ARC5A trips on Magnet overtemp fault

Summary:
Preparing for SL entry.Duration:
8 hours 8 minutes

Time Down:
29-Jun-2026 21:52

Time Up:
30-Jun-2026

Log Number: 4518635Logbook(s): 

• BTLOG
• ELOG

Entry Makers: samariBody: 

With IHA0L09 I was able to compute a good match. The emittance difference between the harps is very puzzling (5x bigger at IHA0L09), but given the very clean 0R05 profile and the 0L10 swipe matching sqrt(betas x emittances) (.8859 x .5806 expected, .8627 x .5847 measured), I think it was a success.

Log Number: 4518634Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: High Voltage was turned off for:
R12
R13
R14
R15
R16
R17
R18
R19
R1A
R1B
R1C
R1D
R1E
R1F
R1G
R1H
R1I
R1J
R1K
R1L
R1M
R1N
R1O
R1P
R1Q