RC meeting and Run Plan, Monday March 11
From HallCWiki
RC Meeting Information
RC Daily Meetings are at 4:30 PM, 2nd floor Counting House Meeting Room
- Bluejeans remote connection information:
To join the Meeting: https://bluejeans.com/861439920 To join via Room System: Video Conferencing System: bjn.vc -or-199.48.152.152 Meeting ID : 861439920 To join via phone : 1) Dial: +1.408.740.7256 (US (San Jose)) +1.888.240.2560 (US Toll Free)) +1.408.317.9253 (US (Primary, San Jose)) (see all numbers - http://bluejeans.com/numbers) 2) Enter Conference ID : 861439920
Useful Links
- Detailed Kinematic Group Settings
- KaonLT-SIDIS Group 2018-2019 Shift Schedule
- Hall-C Controls
- Hall-C Logbook
- MCC White Board
Current Status
- Q2=5.5, x=0.65 (pi+) kinematic setting in progress (on last z setting)
- SHMS Q2 tripped on earth leakage fault overnight - Steve Lassiter melted some ice, and it seems to be working now
- Beam studies have been canceled for Monday - there is no scheduled break in running next week. RF recovery may be scheduled if needed.
Current Run Plan
- Finish Q2=5.5, x=0.65 (pi+) kinematics.
- For pi+ running, we are trying to match the SHMS 3/4 rates that we saw for pi-
- For Q2=5.5, x=0.65, this means our target 3/4 rates should be:
- z=0.7: 100 kHz
- z=0.6: 180 kHz
- z=0.5: 365 kHz
- z=0.4: 500 kHz
- Next, we will proceed to Setting 35: Q2=5.5, x=0.5, (pi-). For all settings, take maximum current (up to 50 uA) that keep SHMS 3/4 rates below 500 kHz.
- Arc energy measurement tentatively scheduled for Wednesday
Notices in Effect for Shift Crew
- Monitor SHMS 3/4 rates - maximum rate 500 kHz.
- HMS polarity cannot be changed remotely - requires hall access. (Note: no polarity changes need for CSV).
- When setting HMS Q1, always reduce current in steps of 50 A or less.
Current Issues
- Need to melt some ice on SHMS current leads at the next opportunity
