RC Meeting and Run Plan, Friday, January 10th 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

Target Readiness

• Spin up measurements conducted this morning indicate masing. Upon inducing a gradient, the polarization increased. Need to do follow up tests in the transverse direction.
• Do spin-up tests in the longitudinal direction overnight.

Remaining work

In the enclosure:

• Installing NMR legs and 2 BNC cables. -
• Install EPR fiber bundle cable - later today
• Install Reference cell RTDs - done
• Check the long. + trans. spectral analyses + mounts - done
• Cooling jets alignments - done
• Reference cell gas connections - done
• Target ladder alignment and adjusting the software encoder positions (if needed) - target cell and reference cell look ok (upstream and downstream). For the carbon foils, the beam is
• Install collimators - tomorrow
• Follow the enclosure backout checklist
• Check the angles on QWP in the laser enclosure.

Outside the enclosure:

• Interlock wire broken - done
• General clean up around the pivot area - tomorrow
• Follow the hall backout checklist - tomorrow

Current Run Plan

• Friday: Continue with spin up tests + follow remaining tasks listed above. Go into controlled access.
• Saturday: Install collimators. Close up the enclosure. Start off with 5-pass and wait for MCC to checkout their equipment. Start taking 1-pass data for two days with the same settings as in December.
• Sunday: 1-pass data
• Monday: 1-pass data --> remove collimators and close the panels. Transition to 5-pass.

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]

Special Requests

• Keep target expert schedule filled out on whiteboard