Aggregator

Log Number: 4496687Logbook(s): 

• ELOG

Tags: 

• ShiftSummary

Body:  CEBAF SHIFT LOG Shift Summary

Start of shift: CW beam to halls B & D, Tune beam to C dumplette.

Log Number: 4496686Logbook(s): 

• ELOG

Tags: 

• BeamAccounting

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

Log Number: 4496682Logbook(s): 

• POLOG
• ELOG

Body: 
Record

Log Number: 4496675Logbook(s): 

• HDLOG
• ELOG

Entry Makers: shrinerBody: 

Log Number: 4496674Logbook(s): 

• ELOG

Body: Calibration ParametersHall:DTarget: JD70-107 55um 45/135 degPass: 5.5Note: Calibrated On:2026-May-03 18:47Calibrated By: alexsFile:D-2026-05-03_1847_JD70-107_55um_45_135_deg_Pass-5.5.hcdIon ChamberExisting Setpoing (rads/hr)New Setpoint (rads/hr)

Log Number: 4496673Logbook(s): 

• HDLOG
• ELOG

Entry Makers: shrinerBody: 

Log Number: 4496672Logbook(s): 

• ELOG

Entry Makers: shrinerBody: 

The EDM screens brought up by the Alarm Handler for the four magnets in rack NL01B11A are outdated and need to be replaced with the current ones. The screen that is brought up through the Alarm Handler is shown in Figure 2. However, the screen brought up through the rack screen is shown in Figure 3.

Log Number: 4496671Logbook(s): 

• DCLOG
• ELOG

Entry Makers: alexsBody: 

Took setpoint and cycled. Did not swap trim.

Log Number: 4496669Logbook(s): 

• ELOG

Body: 

Responded to an unacknowledgeable VIP alarm in the 2I region. The alarm’s .ACKS field was in an INVALID state and could not be acknowledged by Operations.

Restarting the alarm handler cleared this issue. However, upon restart, it was determined that _TEMPERATURE alarms were being incorrectly applied to dipoles driven by 20A trim cards. The configuration rules were corrected and the generation scripts were rerun, removing the invalid TEMPERATURE alarm from the system.

Log Number: 4496665Logbook(s): 

• HDLOG
• ELOG

Entry Makers: alexsBody: 

Log Number: 4496664Logbook(s): 

• ELOG

Body: Calibration ParametersHall:DTarget: 1.1x10-3 Al 100umPass: 5.5Note: Calibrated On:2026-May-02 07:48Calibrated By: msmithFile:D-2026-05-02_0748_1.1x10-3_Al_100um_Pass-5.5.hcdIon ChamberExisting Setpoing (rads/hr)New Setpoint (rads/hr)East Wa

Log Number: 4496663Logbook(s): 

• HBLOG
• ELOG

Entry Makers: shriner

Log Number: 4496662Logbook(s): 

• HBLOG
• ELOG

Entry Makers: shriner

Log Number: 4496660Logbook(s): 

• ELOG
• SLOG

Entry Makers: alexsBody: 

Alarm appears to be a false positive, given the steady readbacks. The alarm would not acknowlege for anyone in the control room, though, so contacted software on call for assistance in silencing the beeps.

Log Number: 4496645Logbook(s): 

• CLOG
• ELOG

Entry Makers: nortonBody: 

It seems that chll03, the Linux machine in the CHL control room running autoheat, was restarted. This stopped Autoheat control for both Linacs.

Started Autoheat for both Linacs on chll77 (chll00).

Log Number: 4496644Logbook(s): 

• ELOG

Entry Makers: eformanBody: 

Log Number: 4496640Logbook(s): 

• ELOG

Entry Makers: anthonyBody: 

Changing from perpindicular to parallel.

Log Number: 4496638Logbook(s): 

• BTLOG
• ELOG

Entry Makers: alexsBody: 

Three times in the past half hour, we've noticed a sudden drop in Hall B's current that recovers over the course of less than five minutes. These drops coincide with a sudden jump of a few hundred microns in the horizontal position at IPM0I05. The cause, like many others at the moment, is unclear. The chopper appears to be behaving normally. If you squint, there appears to be some vacuum activity that might suggest something in the chopper is charging and discharging, but it's hard to tell.

Log Number: 4496634Logbook(s): 

• ELOG

Tags: 

• Autolog
• MCC8am

Body:  */ ATLis Comments Posted 18:00 Thursday May 07 through 18:00 Friday May 08 AES Safety Systems Routine Maintenance of ODH Systems (Managed by SSG).

2026-05-08 16:05 - Liliia Krylach

Log Number: 4496628Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: saver ran from opsl05

Saved: eforman 05-08-26 17:31:07 {A:i B:5 C:2 E:345 A=BS B=CW C=Tune D=CW 0R08=5.07 C dump(s) in.