RC Meeting and Run Plan, Thurs, January 16th 2020

RC Meeting Information

RC Daily Meetings are at 4:15 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

• Main Pol He-3 wiki
• Shift Schedule
• Hall-C Controls
• Hall-C Logbook
• MCC White Board

General updates

• Started 5pass around 6.
• Beam checkout Short procedure
  • Completed
• Could not get above 5uA on owl shift.
• Around 12:15 MMC could reach 30uA.
• Glass cell Commissioning (1 hr each on two glass cells):[https://hallcweb.jlab.org/wiki/index.php/5-pass_production_for_A1n#Glass_Cell_Current_Scan.2FCheckout_and_Commissioning Run plan
  • Completed

Current Run Plan

• Take NMR every 4 hours
• Always take 50Hz of EDTM

Thursday Swing/Owl

• A3) production: Run Plan

Friday Day

• Moller measurement will start around 8am.
  • Start with Moller setup and measurement at present Wien angle (last about 4 hours).

Special Requests

• Keep target expert schedule filled out on whiteboard
• Andy Kenyon has parts ready for the nitrogen for the cooling jets.= Ongoing Work in the Hall
• Bill Henry wants to removed a power supply from the hall. Need Radcon to survey it.

Notices in Effect for Shift Crew

• Policy for CANS-related hall status change: Make a logbook entry when the hall goes in, or comes out of laser-controlled access.
  • Good examples for entering and leaving laser access.
• Magnet policies
  • HMS Q1 must be ramped down in 50A steps in all cases
  • Do not ramp HMS Q2 to zero, only go to 10A and then switch off power.
• Inform the RC of any access that the Target Team requires. The RC will coordinate with RadCon to make everything run smoothly.
• The operators have been somewhat careful with our beam orbit locks. Please make sure that the orbit locks are enabled and the beam does not drift from its nominal position.
• Ramp rate lock instructions are here and added to checklist[1]
• Temporary Laser instructions can be found here [2]