Pol He3 Target Meeting April 27, 2020

Members present: Jian-ping, Murchhana, Melanie, Arun, Brad, Jixie, Mingyu, Todd, Bill, Junhao, and Mingyu

Murchhana

• Presented slides on Compass measurements
  • Settings for the compass measurements were exactly the same as those for the field measurements
  • Longitudinal: needed a turning mirror to reflect the laser beam toward the compass (the only difference between the longitudinal and transverse setups).
  • Transverse (+x) field direction measurements
    • want to compare to Bill’s results
  • Horizontal error from mirror alignment
    • fit to a line and not an ellipse? how much the trend deviates from a line represents the uncertainties

Junhao

• Completed script that uses Mingyu’s run databse to analyze NMR data
  • Put NMR results in the pol-he3 group directory
  • can still work on the cdaql1 directory, but be sure to store results in the group directory so it’s backed up
• Need to find out if we can access EPICS variables from the farm
  • Cannot seem to get the correction coil settings from EPICS?

Bill

• Can expect shipment for the KEPCO power supply soon

Next week, we expect presentations from Mingyu and Melanie