Aggregator

Log Number: 4535173Logbook(s): 

• ELOG

Entry Makers: dthomasBody: 

Log Number: 4535169Logbook(s): 

• ELOG

Tags: 

• ShiftSummary

Body:  CEBAF SHIFT LOG Shift Summary

Start of shift: CW beam to B/C/D

Log Number: 4535168Logbook(s): 

• ELOG

Tags: 

• BeamAccounting

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

Log Number: 4535124Logbook(s): 

• ELOG
• SLOG

Entry Makers: mmerzBody: 

Unable to start LERF alhDisable. LERF Alarm heartbeat not beating.

Log Number: 4535123Logbook(s): 

• HDLOG
• ELOG

Entry Makers: bbarkerBody: 

Log Number: 4535122Logbook(s): 

• DCLOG
• ELOG

Entry Makers: dthomasBody: 

Log Number: 4535119Logbook(s): 

• ELOG

Body: Calibration ParametersHall:DTarget: JD80-213 80um 45/135Pass: 5.5Note: Calibrated On:2026-Jul-29 20:36Calibrated By: anthonyFile:D-2026-07-29_2036_JD80-213_80um_45_135_Pass-5.5.hcdIon ChamberExisting Setpoing (rads/hr)New Setpoint (rads/hr)

Log Number: 4535113Logbook(s): 

• HCLOG
• ELOG

Entry Makers: mmerzBody: 

Log Number: 4535108Logbook(s): 

• ELOG

Body: 

Thank you for this task. Approved, make sure PTW is on-issue before beginning. Aiming for LOTO and ZVV with AES-RF at 0915 in NLSB.

Log Number: 4535106Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: UNMasked Hall C Normal Target FSD

Log Number: 4535105Logbook(s): 

• ELOG

Body: Calibration ParametersHall:CTarget: 10cm DummyPass: 5Note: SHMS angle: -14-74Calibrated On:2026-Jul-28 02:36Calibrated By: msmithFile:C-2026-07-28_0236_10cm_Dummy_Pass-5.hcdIon ChamberExisting Setpoing (rads/hr)New Setpoint (rads/hr)Compton

Log Number: 4535103Logbook(s): 

• ELOG

Body: Calibration ParametersHall:CTarget: Solid Tgt (C%)Pass: 5Note: SHMS 950A, -12.9degCalibrated On:2026-Jul-30 18:01Calibrated By: mmerzFile:C-2026-07-30_1801_Solid_Tgt__C___Pass-5.hcdIon ChamberExisting Setpoing (rads/hr)New Setpoint (rads/hr)

Log Number: 4535101Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: Masked Hall C Normal Target FSD

Log Number: 4535099Logbook(s): 

• ELOG

Entry Makers: bjacobBody: 

Not bad.

Also set a new integrated power record for this run...if you pay attention to that sort of thing.

Log Number: 4535098Logbook(s): 

• ELOG

Entry Makers: dthomasBody: 

Log Number: 4535097Logbook(s): 

• ELOG

Body: 

Tentatively adding this to 8/4 maintenance day activities. Approval is pending answers to these questions (copied from e-mail chain):

Typically, the plant is using Chiller 60-CH-3 and 60-CH-4 even on the hottest days so far this year. So, removing power from Chillers 60-CH-1 and 60-CH-2 only means there is no backup chiller available for that period if either Chiller 60-CH-3 and 60-CH-4 were to fail. The larger question is would power be removed from only Chiller 60-CH-1 and 60-CH-2 or would power also be removed from other items such as pumps or control devices?

Log Number: 4535086Logbook(s): 

• ELOG

Body: 

ES&H clarified to F&O where the last two signs need to go:
1) On the BSY-side of the BSY-Hall C Door
2) On the NL-side of the NL-Hall D Tagger Door.

On Tuesday 8/4 the NL will be in Restricted Access from ~0830 to ~1400. The BSY will be in Controlled Access from ~1000 to ~1400. Let's perform this task then. Thanks.

Log Number: 4535085Logbook(s): 

• ELOG
• RFLOG

Tags: 

• Autolog

Body: 

The OPS DRVHs for the following cavities have been updated:
1L09-6
Username: alexs
Date/Time: 07-31-26_13:26:07
RF Status: Good
Tuner Status: Good
Comment: DRVH=15.700 Stabilized KCCU by increasing filament voltage. Restoring ODVH to 1 R/hr setting
Previous OPS DRVH: 14.4
Special Instructions:

Log Number: 4535084Logbook(s): 

• ELOG

Body: 

Added to 8/4 MD activities. Please be sure to have this done by 2PM, as Ops will be preparing the machine for running again and will need to LCW signals resolved to assess whether magnets can be turned on post-flushing activities.

Log Number: 4535081Logbook(s): 

• ELOG

Body: 

BELS HCO tests to SAM Cal for Wed 8/5.