Aggregator

Log Number: 4516855Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: RF was turned off in:
R02
R03
R04

Log Number: 4516854Logbook(s): 

• ELOG
• POLOG

Tags: 

• Autolog

Body: 

Log Number: 4516852Logbook(s): 

• ELOG
• POLOG

Tags: 

• Autolog

Body: 

Log Number: 4516851Logbook(s): 

• ELOG

Body: 

SL has been surveyed and dropped to Restricted

Log Number: 4516850Logbook(s): 

• ELOG

Body: 

Mag Shop:

We have completed LTT. ePas JLab-PTW-11104 is on issue.

Staging and getting ready to go into CEBAF as soon as we get to restricted access.

Log Number: 4516849Logbook(s): 

• ELOG

Body: 

The PSS magenta beacon for Hall B that is located in the BSY needs to be replaced. It is functioning but the light output is dim.

Log Number: 4516848Logbook(s): 

• HCLOG
• ELOG
• RADLOG

Entry Makers: chumphryBody: 

For Arc 5 Box Supply work

Log Number: 4516841Logbook(s): 

• HCLOG
• ELOG
• RADLOG

Entry Makers: chumphryBody: 

ASEDCP has locked out these supplies

Log Number: 4516838Logbook(s): 

• HCLOG
• ELOG
• RADLOG

Entry Makers: chumphryBody: 

Log Number: 4516836Logbook(s): 

• ELOG

Entry Makers: nissenBody: 

Recently there have been particular waves off and on in the east arc LCW temperature. These match the "kilroy waves" we saw four years ago that were causing motion changes for Hall D. In the figure we see the linked log and the current readout before it.

Last time this behavior was fixed by swapping out the heat exchanger.

Log Number: 4516834Logbook(s): 

• ELOG
• RADLOG

Entry Makers: janakBody: 

Log Number: 4516833Logbook(s): 

• ELOG

Body: 

Sounds good. Be sure the MCC knows to expect a SLGP shift upon beam restoration.

Log Number: 4516832Logbook(s): 

• ELOG

Body: 

Would like to take an opportunity to do some quick more invasive testing while SL is down for other work.

Log Number: 4516831Logbook(s): 

• ELOG

Tags: 

• Readme

Entry Makers: schoeneBody: 

For duration of magnet flush during day shift.

Log Number: 4516829Logbook(s): 

• ELOG

Entry Makers: janakBody: 

Due to hall not receiving beam they requested the tagger magnet be ramped down.

Log Number: 4516826Logbook(s): 

• ELOG

Tags: 

• MCC8am

Body:  CEBAF SHIFT LOG Shift Summary

Start of shift:  CW beam to Hall C.

Log Number: 4516825Logbook(s): 

• ELOG

Entry Makers: chumphryBody: 

Accelerator is down because of Arc5 Box Supply
South Linac is in Controlled Access and RadCon is doing Full Survey at this time.
After survey is completed the South Linac will be drop to Restricted Access.
AEDCP will do a investigation after this for required actions after .

Log Number: 4516824Logbook(s): 

• ELOG

Entry Makers: deirBody: 

A few notes...

Fig 1: I selected the measurement for all lasers, but it only changed slit positions on the C slit, presumably because this was the only one that was opened when the script was started. It seems that the script will require the user to open all of the slits to start with.

Figs 2 & 3: Restarted the measurement with all of the slits opened. It started by closing the A and B slits, but it attempted to record bleedthrough values through the C slit before the A and B slits were fully closed.

Fig 4: The rest of the measurements seemed to go well.

Log Number: 4516823Logbook(s): 

• ELOG
• LERFLOG

Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Humphry
DATE:             06/26/2026
SHIFT:               Day

The operator has read the following:

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

Log Number: 4516819Logbook(s): 

• ELOG
• POLOG

Body: 
Nominal Settings Hall A Hall B Hall C Hall D Slit (mm) -1.02 -0.98 -1.02 -0.96 Attenuator (stepper motor units) 119 119 179 119