December 1, 2022

RC Meeting Information

• Return to RC meeting main page

RC Daily Meetings are at 11:00 (am) via Zoom and in person in the counting house meeting room (2nd floor)

• Zoom remote connection information:

 Join ZoomGov Meeting
 https://jlab-org.zoomgov.com/j/1607100885?pwd=ZFBsRTFsYm5Zb0laZ0tyZXNjcEE0QT09
 Meeting ID: 160 710 0885
 Passcode: 595071
 One tap mobile
 +16692545252,,1607100885# US (San Jose)
 +16468287666,,1607100885# US (New York)
 Dial by your location
       +1 669 254 5252 US (San Jose)
       +1 646 828 7666 US (New York)
       +1 669 216 1590 US (San Jose)
       +1 551 285 1373 US
       833 568 8864 US Toll-free
 Meeting ID: 160 710 0885
 Find your local number: https://jlab-org.zoomgov.com/u/ab2CekLXgQ

Useful Links

• Shift Signup (Read only)
  • Shift Signup

• Hall-C Controls
• Hall-C Logbook
• MCC White Board

Current Status

• Still in Restricted access
• Target Cool down is in process
• Rough estimate ~6 - 8 pm to finish the cool down (but Dave pointed out that this is a very rough estimate)

Run Plan

• Move SHMS to 8.00 degrees
• SHMS momentum to -9.2 GeV
• Move HMS to 20.00 degree
• HMS momentum to +3.40 GeV (Positron running)
• Beam and Target Checkout procedure: https://hallcweb.jlab.org/wiki/index.php/Beam_Checkout_Procedures
  • Turn on all hodoscope and preshower HV

Notes

• SHMS rotation to 8 deg: Rotating SHMS below 8 deg will trip the limit switch. Start with putting 8.1 or 8.2 deg on the rotation GUI to see the angle offset first then correct for it.
• HMS rotation to 20 deg: There is an increased chance that the rotation will get "stuck" and require expert intervention.
  • When rotating to 20 degrees from smaller HMS angle, it is ok to go directly to 20 degrees.
  • When rotating to 20 degrees from larger angle, first rotate to 19 degrees, and then to 20 degrees.
• SHMS DAQ work during the Christmas break by Bob Michaels?