RC Meeting and Run Plan, Tuesday December 18th 2019

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:
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 Meeting ID : 861439920
 To join via phone :
 1)  Dial:
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   +1.888.240.2560 (US Toll Free))
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 2)  Enter Conference ID : 861439920

Useful Links

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

Current Status

Target related work:

• Spectral analysis of all lasers - no issues
• Elastics data taken on reference cell with N2
• Polarimetry
  • NMR -- STATUS?
  • EPR -- STATUS?
  • pNMR -- STATUS?

HMS + SHMS

• Data taken with certain HMS paddles (1 - 9) and SHMS (1 - 7) turned off. Have to make sure that we have the correct settings before taking data (right type of target, reference cell gas, magnetic fields, kinematics settings etc.).

Raster

• Raster size specified = required now i.e. 5mm = 5mm

Current Run Plan

Wednesday--> Swing + Night shifts:

• Empty cell run
• He3 pressure curves runs
• Energy measurement
• BCM calibration
• Elastics on He3 cell
• Back to He3 transverse measurements (start if we have time)

Thursday -->Day shift (+ Swing?):

• Spectrometer rotation tomorrow morning
• MOLLER measurement
• Optics delta scan
• Back to He3 transverse measurements (if not finished tonight)

• Day by Day Options [1]

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[2]
• Temporary Laser instructions can be found here [3]

Current Issues

• Polarimetry debugging

Special Requests

• Keep target expert schedule filled out on whiteboard