RC Update and Run Plan for Aug 13, 2020
From HallCWiki
Contents
RC Meeting Information
RC Daily Meetings are at 4:15 PM, remote
Wednesday Aug 13 2020.
General updates
The HMS was to 13.50. There were some issues with the Drive Controllers. They needed to be reset by Joe in the Hall Drive_Controllers
Reference cell was pumped with Hydrogen [reference_cell]
Pending problem
- Beam trip rate
Recent polarization measurements
Current Run Plan
Normal Production running
- Prerequisites
- Make sure operational restrictions are followed.
- Make sure the raster size is correct (4-4.5)
- Monitor beam parameters/configuration very often and post an entry like this at the beginning of your shift and when run conditions have changed
- Running on cell targets: raster always ON (4-4.5, size will be determined by the scraping checks), orbit locks ON, current ramp rate 1 muA/sec
- Always take 120Hz of EDTM
- Fill the BTA with realistic numbers. If the desired beam current is not delivered prorate your ABUs!
- Change the IHWP every 4 hours when running on glass cells
- Run plan
- Since we have been down since 9 am, we likely want to start back with the Beam / Raster checkout (short procedure)
- Production on 3He; if not able to reach requested current, pro-rate the ABUs
Notes for tomorrow's 7:45 meeting
Future
- We are on the schedule to switch to 1st pass on the week of Aug 24 (Monday/ Tuesday). Need about ~ 3 days at 1st pass and would like to switch back to 5th pass before the weekend.
- EPR diode good for now, but check for future planned accesses.
- If Hall will have opening for 1+ hours, let Simona know as there is work to do on the cerenkov.
