Aggregator

Log Number: 4492280Logbook(s): 

• HDLOG
• ELOG
• RADLOG

Entry Makers: eformanBody: 

After accessing/locking the collimator vault

Log Number: 4492277Logbook(s): 

• CLOG
• ELOG
• SRFLOG

Entry Makers: nortonBody: 

The archiver indicates that there was no RF indicated during the relevant time period, if the R1IXHTPR signal is to be believed for this purpose and there was no other commissioning activity during the relevant time frame on that module.

Log Number: 4492272Logbook(s): 

• ELOG

Entry Makers: bschaumlBody: 

Log Number: 4492269Logbook(s): 

• ELOG

Body: 

There has been some discussion in the background about the potential for microphonics issues on 1L03 as indicated by the MLDaq waveform data. There is a copy of the same waveforms on the front panel connectors on the RFCM analog boards. Jayendrika and I went out this afternoon with an oscilloscope and took data for the analog GMES, PMES (really PLDE), GASK and PASK signals so that they could be compared to the data from the MLDaq system. It seems that 6 of the channels in the MLDaq system have a problem.

Log Number: 4492265Logbook(s): 

• ELOG
• LERFLOG

Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Schaumloffel
DATE:             04/27/2026
SHIFT:               Swing

The operator has read the following:

Log Number: 4492264Logbook(s): 

• ELOG
• BTLOG

Body: Fopt results from /usr/ntfs/public/optics/diforb/26apr271609
Comment: Post 7S+7R Ballparking
HOSTNAME: opsl02
CED WORKSPACE: OPS CED LOGIN KEY: pro
MYA DEPLOYMENT: ops
CONFIG PATH: /cs/prohome/apps/q/QTSnyder_QT5/1-2/fileio/config/cs.conf
DIFORB PATH: /usr/ntfs/public/optics/diforb

Log Number: 4492263Logbook(s): 

• ELOG
• SLOG

Tags: 

• Autolog

Body: restorelib 3.0.1 Target restore date was 2026-04-27 16:08:17 The output from the myRestore execution was as follows: iocsoftbpm1na Pause: 30 second(s) bpm1nA@2026-04-27 16:08 102(102) restored bpm1nAEXP@2026-04-27 16:08 126(126) restored bpm1nA_DISBPM@2026-04-27 16:08 3(3) restored systemEnum@2026-04-27 16:08 2(2) restored Execute: /usr/csite/certified/bin/ced2Epics -ced ced -A -i iocsoftbpm1na (success) PVs modified: 0 PVs modified: 0 PVs modified: 0 PVs modified: 0 PVs modified: 0 PVs modified: 0 PVs modified: 0

Log Number: 4492262Logbook(s): 

• ELOG
• LERFLOG

Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Anthony
DATE:             04/27/2026
SHIFT:               Swing

The operator has read the following:

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

Log Number: 4492261Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: Fopt 7.9 completed successfully. The runtime settings include a sample count of 15, a minimum current of 4, and an operating regime of Standard with Excitation in 1S Region. The corrector and RF kicks applied were 0.488208 and 0.488208 volts respectively. The max. amplitude setting was 1 millimeters. The files for this run were saved in the directory /cs/opshome/hlapps/optics/diforb/26apr271609. The X and Y stability of the machine during the run was 0.0415349 and 0.0301527 (mm) respectively.

Log Number: 4492259Logbook(s): 

• ELOG

Entry Makers: kernsBody: 

After SRF found nothing wrong with the tuner downstairs, I suggest we replace the Camac M540 Micro-stepper card during our next maintenance day ! Never saw a stepper card cause sluggish tuning but I was sure we might have some loose set screws on the couple motor coupler. We'll see and eliminate the card. Don't see any differences between cav.7 and cav.8 on the tuner diagnostic page that would account for the tuner being slow ! We'll see.

Log Number: 4492256Logbook(s): 

• ELOG
• SRFLOG

Body: 

No major update.

Log Number: 4492255Logbook(s): 

• ELOG

Body: 

PTW-10605 retracted. Awaiting new PTW.

Log Number: 4492251Logbook(s): 

• ELOG

Body: 

This happened during a trim card swap and is normal.

Log Number: 4492250Logbook(s): 

• ELOG
• BTLOG

Body: 

Laser Used:

B Laser

Sigmas:

Peak 1 - x Sigma: 0.1134 Peak 2 - u Sigma: 0.1008 Peak 3 - y Sigma: 0.1683

Log Number: 4492248Logbook(s): 

• ELOG
• LERFLOG

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

Date : 04-27-26
Time : 15:17:45
Day : Monday
Shift : Swing

Crew Chief : Forman
Program Deputy: Sereno
Team : X
Arm : Schaumloffel
Designated SSO: Anthony
LERF Operator:
Operators : Anthony, Schaumloffel

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

Log Number: 4492246Logbook(s): 

• ELOG
• BTLOG

Body: 

Laser Used:

B Laser

Sigmas:

Peak 1 - x Sigma: 0.6125 Peak 2 - u Sigma: 0.9757 Peak 3 - y Sigma: 1.5831

Log Number: 4492245Logbook(s): 

• ELOG

Tags: 

• ShiftSummary

Body:  CEBAF SHIFT LOG Shift Summary

Start of shift: Beam to HB/HC

Log Number: 4492244Logbook(s): 

• ELOG

Tags: 

• BeamAccounting

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

Log Number: 4492243Logbook(s): 

• ELOG
• BTLOG

Body: 

Laser Used:

B Laser

Sigmas:

Peak 1 - x Sigma: 0.2607 Peak 2 - u Sigma: 0.2892 Peak 3 - y Sigma: 0.2702

Log Number: 4492241Logbook(s): 

• ELOG
• BTLOG

Body: 

Laser Used:

B Laser

Sigmas:

Peak 1 - x Sigma: 0.1738 Peak 2 - u Sigma: 0.2226 Peak 3 - y Sigma: 0.4495