Target Field and Kepco Info

This page is dedicated to all things Target Field related

Log Entries

• • Nov. 26th Kepcos replaced Agilents https://logbooks.jlab.org/entry/3744320
  • Dec. 26th V_in vs Current Calibration for two Kepcos in voltage control mode https://logbooks.jlab.org/entry/3747508
  • Jan. 4th Swapped out Kepco with another Kepco because it was not stable https://logbooks.jlab.org/entry/3758511
  • Jan. 15th Swapped out Kepco with another Kepco because it was running hot and tripping https://logbooks.jlab.org/entry/3764365
  • Feb. 9th Field sweep program updated for Agilent https://logbooks.jlab.org/entry/3780264
  • Feb. 10th Replaced Kepco with Agilent. Rearranged rack for better cooling https://logbooks.jlab.org/entry/3781492
  • Feb. 14th Replaced Agilent with new Kepco. In constant current mode the inductive load option interfered with NMR https://logbooks.jlab.org/entry/3783977
  • March 18th In constant voltage mode, coils need time to warm up https://logbooks.jlab.org/entry/3805990
  • March 22nd New kepco had odd behavior in voltage mode. Transverse NMR was not working. Left in current mode. https://logbooks.jlab.org/entry/3807357
  • March 22nd Odd behavior explained from above. Noticed possible grounding issues. https://logbooks.jlab.org/entry/3807894
  • March 24th Trouble getting transverse NMR signal. Bad Cable? https://logbooks.jlab.org/entry/3809148

Plan for returning from COVID shutdown

• • Follow manufactureres "Check out" procedure for new power supply which was delivered during shutdown
  • Measure resistance to ground for both coils
  • Install latest new power supply, add additional circuitry
  • Test power supplies in both current and voltage control mode
  • Look at PS output on scope, with and without RF on.
  • Test NMR in both voltage and current mode
  • Ensure Labview is ready to go for either configuration

Manuals/Documentation

• Note on KEPCO power supplies