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Area of Science:

  • Plasma physics
  • Astrophysics
  • Atomic spectroscopy

Background:

  • The Zeeman effect is crucial for measuring magnetic fields in astrophysical and laboratory plasmas.
  • Magnetic fields in white dwarf stars range from 40 kG to 1 GG.
  • The quadratic Zeeman effect becomes significant for magnetic fields exceeding 2 MG, causing line splitting and shifting.

Purpose of the Study:

  • To investigate the quadratic Zeeman effect in hydrogen Balmer lines.
  • To measure strong magnetic fields in laboratory plasmas using spectral line analysis.

Main Methods:

  • Utilized a 1 MA pulse power generator to create strong magnetic fields.
  • Generated magnetic fields using rod loads (0.8-1 mm diameter).
  • Employed a droplet of CH oil as a hydrogen source, backlit by blackbody emission (0.5-0.6 eV).
  • Analyzed Zeeman splitting of H-alpha and H-beta absorption lines with a grating spectrometer.

Main Results:

  • Observed Zeeman splitting of hydrogen H-alpha and H-beta absorption lines.
  • Detected a spectral shift in the central component of the triplet, indicative of the quadratic Zeeman effect.
  • Successfully demonstrated the quadratic Zeeman effect in a laboratory plasma environment.

Conclusions:

  • The study confirms the applicability of the Zeeman effect for magnetic field measurements in laboratory plasmas.
  • The quadratic Zeeman effect was experimentally verified in hydrogen lines under strong magnetic fields.
  • This research provides insights into spectral line behavior in extreme magnetic field conditions relevant to astrophysics.