Aggregator
ACC=>RF=>NORTH_LINAC=>1L26=>1L26-1=>R1Q1ALM02 (BEAM LOADING) has been disabled in alarm handler
ACC=>RF=>NORTH_LINAC=>1L26=>1L26-1=>R1Q1ALM01 (DRAINING) has been disabled in alarm handler
ACC=>RF=>NORTH_LINAC=>1L26=>1L26-1=>R1Q1ALM01 (DRAINING) has been enabled in alarm handler
ACC=>RF=>NORTH_LINAC=>1L26=>1L26-1=>R1Q1ALM02 (BEAM LOADING) has been enabled in alarm handler
ACC=>RF=>NORTH_LINAC=>1L26=>1L26-1=>R1Q1ALM03 (GASK HIGH) has been enabled in alarm handler
ACC=>RF=>NORTH_LINAC=>1L26=>1L26-1=>R1Q1ALM07 (BYPASS CONNECTIVITY ERROR) has been enabled in alarm handler
ACC=>RF=>NORTH_LINAC=>1L26=>1L26-1=>R1Q1ALM06 (ITOT CONNECTIVITY ERROR) has been enabled in alarm handler
cathode QE and vacuum activity summary
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.
APPROVED Accelerator service BLDG mechanical PM's
COMMENT ON Patch/Reboot chlbat1
COMMENT ON Accelerator service BLDG mechanical PM's
COMMENT ON Hall C ODH: Annual sensor changeout - 2026
COMMENT ON Hall C ODH: Annual sensor changeout - 2026
COMMENT ON Hall B ODH System: Annual sensor changeout - 2026
QuickPic - Adjusted 2L11-1 TDOFF: -62 -> -80
Reset Arc 6-9 xGOFs
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.










