October 26, 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

• SHMS: 8 degrees, -9.2 GeV, 1x, 2x 1-7 off
• HMS: 20 degrees, -2.71 GeV (setting 9)
• 5pass beam, 30 to 60uA

Run Plan

• Continue data taking.
• Hall A pass change next week ( Monday through Wednesday)
• Short RF recovery on tomorrow
• before RF recovery:
  • ARC energy measurement
  • boiling /rates study ( need stable beam up to 60uA)

Issues

• CODA crash was monitored overnight as suggested by Bob https://logbooks.jlab.org/entry/4069728
• During day shift, shift worker noticed that the energy lock was off and called MCC to bring it back https://logbooks.jlab.org/entry/4068686
• Target mask lost during moving https://logbooks.jlab.org/entry/4068685

Notes

• watch beam stability
• need more shift workers (always)

To do

• Install Q1 SHMS vacuum gauge (~3hr)
• calibrate SHMS Dipole LN2 valve during next access (Amy Comer, Steven Lassiter; Heidi Fansler) https://logbooks.jlab.org/entry/4064490. For now, monitor the ice accumulation if any https://logbooks.jlab.org/entry/4064528
• reboot or replace the SHMS angle camera (Dave Gaskell?) https://logbooks.jlab.org/entry/4067528
• replace GEM gas bottle (Jixie)
• check UNSER control box (Dave Mack) https://logbooks.jlab.org/entry/4068738
• reboot NCG readback (Ellen Becker) https://logbooks.jlab.org/entry/4069438