Aggregator

Log Number: 4477363Logbook(s): 

• ELOG

Body: ACC=>RF=>NORTH_LINAC=>1L26=>1L26-1=>R1Q1ALM03 has been disabled in alarm handler

Not in use. Nuisance

Log Number: 4477362Logbook(s): 

• ELOG

Body: ACC=>RF=>NORTH_LINAC=>1L26=>1L26-1=>R1Q1ALM02 has been disabled in alarm handler

Not in use. Nuisance

Log Number: 4477361Logbook(s): 

• ELOG

Body: ACC=>RF=>NORTH_LINAC=>1L26=>1L26-1=>R1Q1ALM01 has been disabled in alarm handler

Not in use. Nuisance

Log Number: 4477360Logbook(s): 

• ELOG

Body: ACC=>RF=>NORTH_LINAC=>1L26=>1L26-1=>R1Q1ALM01 has been enabled in alarm handler

Trying to find alarm

Log Number: 4477359Logbook(s): 

• ELOG

Body: ACC=>RF=>NORTH_LINAC=>1L26=>1L26-1=>R1Q1ALM02 has been enabled in alarm handler

trying to find alarm

Log Number: 4477358Logbook(s): 

• ELOG

Body: ACC=>RF=>NORTH_LINAC=>1L26=>1L26-1=>R1Q1ALM03 has been enabled in alarm handler

Trying to find alarm

Log Number: 4477357Logbook(s): 

• ELOG

Body: ACC=>RF=>NORTH_LINAC=>1L26=>1L26-1=>R1Q1ALM07 has been enabled in alarm handler

Trying to find alarm

Log Number: 4477356Logbook(s): 

• ELOG

Body: ACC=>RF=>NORTH_LINAC=>1L26=>1L26-1=>R1Q1ALM06 has been enabled in alarm handler

Trying to find alarm

Log Number: 4477353Logbook(s): 

• POLOG
• ELOG

Body: 

I looked through the archiver data to find the gun drop events, associated maximum pressure recorded on the ion pump, and QE from the QE analyzer tool.
As expected, we lost QE with gun drops, and the magnitude of the vacuum activity correlates to the severity of the loss of QE. We do seem to see some recovery after the events in the QE, which is consistent with hydrogen contamination on the photocathode which stabilizes as we run beam.

Take away messages: Just a log of all the gun drops prior to finding the cable issue, and the correlation with QE to have in the record.

Log Number: 4477350Logbook(s): 

• ELOG

Body: 

Log Number: 4477349Logbook(s): 

• ELOG

Body: 

Scheduled/Approved for 9am on 3/17

Log Number: 4477348Logbook(s): 

• ELOG

Body: 

PTW on-issue. Approved.

Log Number: 4477345Logbook(s): 

• ELOG

Body: 

OM02, OM04 and OM08 were bypassed and sensors have been replaced. Will return to service after 2-day warmup period.

Log Number: 4477344Logbook(s): 

• ELOG

Body: 

OM01, OM03 and OM07 returned to service.

Log Number: 4477343Logbook(s): 

• ELOG

Body: 

OM01 returned to service. OM05 was bypassed and sensor has been changed out. Will return to service after 2-day warm-up period.

Log Number: 4477342Logbook(s): 

• ELOG

Entry Makers: deirBody: 

Log Number: 4477341Logbook(s): 

• ELOG

Entry Makers: bjacobBody: 

It was noted that the xGOFs for the higher Arcs weren't set to zero likely due off normal pathlength corrections that were made last run. Went through and set them back to zero to get a clean start for ORFP. Did not adjust Arc A as that is set empirically.

I did twiddle save before making the changes.

Log Number: 4477340Logbook(s): 

• ELOG

Body: The following entry was placed in the Accelerator Bypassed-Interlocks Log (ABIL) Device: OMC08 Function: Oxygen Monitor Location: Hall C - HMS - Detector Hut (Level 2) Purpose: Sensor change-out Exp.

Log Number: 4477339Logbook(s): 

• ELOG

Body: The following entry was placed in the Accelerator Bypassed-Interlocks Log (ABIL) Device: OMC04 Function: Oxygen Monitor Location: Hall C - Transport Tunnel - High Purpose: Sensor change-out Exp.

Log Number: 4477338Logbook(s): 

• ELOG

Body: The following entry was placed in the Accelerator Bypassed-Interlocks Log (ABIL) Device: OMC02 Function: Oxygen Monitor Location: Hall C - North Wall Purpose: Sensor change-out Exp.