RC Meeting Information

No Meeting, Have a nice weekend!

Announcement

Bill will host a target training session on Next Monday after the RC meeting, we have lots of TO shifts open, please take the chance join the session

Very smooth production run on He3 target @ 36 uA. No big interruptions.
NMR polarization -
During Saturday Swing shift, MCC temporarily dropped us to 30 uA due to RF instability issue, I checked with MCC, confirmed that this is only temporarily, as long as they have a better RF stability, they will bring us back to 36 uA.
Jiwan, Alexander, Bryan and Ben traced down to the cause of the HCal f1TDC 1 & 4 timing shift issue (see a log https://logbooks.jlab.org/entry/4095193 ), Up to now, this issue only shows up in a single run 3005, Jiwan put a specific instruction on what to do when we encounter this issue again. We will keep an eye on this.
Target
There are a few runs with 50 K replay missing SBS GEMs plots due to the over-sized pdf file, which blocked them being posted to logbook, Sean reduced the pdf file size by removing a few histograms, the later runs seems fine since then.
For future shift takers, MCC gave us an option for checking beam restoration status, please check a detailed description in a log by Iullia [ https://logbooks.jlab.org/entry/4094990 ]

BB Hodoscope: channel 0R - 15R missing in the 50K replay [ https://logbooks.jlab.org/files/2022/12/4093673/summaryPlots_2966_BBTH.pdf ]
One APV malfunction, not a big problem

Will try to arrange an escorted access for fixing hodoscope when we have a long beam down ( longer than 1 hour).