Design and calibration of a solenoid used on magnetized plasma experiments and B-dot probes using commercial electronic components

ORAL

Abstract

Magnetic fields play an important role in many areas of plasma physics. Sometimes, such areas call for the generation of strong magnetic fields ($>$5T) in compact volumes. In addition to the engineering challenges of fabricating a powerful, reusable electromagnet design, measurement and calibration of such powerful magnetic fields and field geometries requires the use of precise and often disposable measuring devices that can be easily adapted to any experimental set-up. Here, we present our approach to both sides of this problem. First, we show the construction of a solenoid designed to produce an axial magnetic field with strength in the central gap in the order of 10T. Second, we show a method for fabricating B-dot probes using commercially available inductor elements commonly used in circuit board construction with a study of the performance in strong (10T) pulsed magnetic fields.

*Funding granted by LLNL for LDRD 17-ERD-027 under subcontract B628876, sponsored by the U.S. DoE by LLNL under Contract No. DE-AC52-07NA27344 and NNSA-DP and SC-OFES Joint Program in High-Energy-Density Laboratory Plasmas, grant number DE-NA0002956. Further support by the U.S. DoE, Office of Science, Office of Fusion Energy Sciences under FWP SW1626 FES.

Authors

  • Raul Melean

    • University of Michigan - Ann Arbor
  • Sallee Klein

    • University of Michigan
    • University of Michigan - Ann Arbor
  • Heath LeFevre

    • University of Michigan - Ann Arbor
    • University of Michigan
  • Paul Campbell

    • University of Michigan
    • University of Michigan - Ann Arbor
  • Jackson Williams

    • Lawrence Livermore National Laboratory
    • Lawrence Livermore Nat Lab
    • Lawrence Livermore Natl Lab
  • Gregory Kemp

    • LLNL
    • Lawrence Livermore National Laboratory
    • Lawrence Livermore Natl Lab
  • Derek Mariscal

    • LLNL
    • Lawrence Livermore National Laboratory
    • Lawrence Livermore Natl Lab
  • Mario Manuel

    • General Atomics
  • Ryan McBride

    • University of Michigan - Ann Arbor
  • C.C. Kuranz

    • University of Michigan
    • University of Michigan - Ann Arbor
    • U. of Michigan
    • U. of Michigan, USA