MOLLER PQB Meeting October 4, 2023

In person in MCC Conference Room and with Zoom.

https://wiki.jlab.org/ciswiki/index.php/Parity_Quality_Beam

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Join ZoomGov Meeting https://jlab-org.zoomgov.com/j/16175982906?pwd=MU9UTXFSY0lhY1lOR0VBblBsSUZYZz09

Meeting ID: 161 7598 2906 Passcode: 1757269715

Agenda:

1- PQB Setup status media:190614_PQB.pptx media:190614_PQB.pdf

Start looking at PQB seriously about 4-5 days into receiving beam

2- Daniel/Paul - Status of Injector Online Parity monitoring

On-line plots updated ~30 sec pushed to logbook anyone can see, or in MCC w/ Hall A user logging in

3- Status of PQB feedback PV's

Feedback plots updated ~10 sec pushed to PV's in archiver once Hall A in production mode

4- Is RTP weekly measurement needed?

Not needed routinely, but may ask for occasional check, takes 19.8 minutes

5- 90Hz investigation

Root cause not identified, but only presents itself at HWien near -15 deg, will re-check w/ final setup and after spin dance

6- IHWP in/out updating of RTP PVs

Joe/Brian/Paul/Caryn to meet, evaluate options A (write/push values using GUI) or B (write directly to RTP cell voltages)