Evidence of Self-Induced Stark Lines in Turbulent Hypersonic Argon Plasmas

ORAL

Abstract

Recent experimental evidence suggests that turbulence is influenced by external electromagnetic fields. Localized magnetic fields might also distort turbulent systems. Using a high-speed spectrograph with an echelle grating and a dual order prism attached to a CCD, we confirm the existence of localized self-induced stark effect lines in argon plasmas produced by the arc-driven shock tube. These Stark lines are treated as a byproduct of a self-induced magnetic field. This diagnostic identifying the lines performs high-speed spatial scans of 160nm in range of up to 20 microseconds allowing for more defined results for analysis. In this talk the diagnostic of the system will be presented.

*Work supported in part by grants to FAMU from NSF and from Fusion Energy Sciences at DOE.

Authors

  • Marquita Scott

    • Florida A\&M University
  • James Titus

    • Florida A\&M University
  • Alonzo Alexander

    • Florida A\&M University
  • Kyron Williams

    • Florida A\&M University
  • Joseph Johnson

    • Florida A\&M University