<u>Zeeman Polarization Spectroscopy on gas-puffs at 1-MA on COBRA</u>

This poster will present results on magnetic field measurements in the imploding sheath of a magnetically imploded gas-puff Z-pinch at 1-MA on COBRA at Cornell. These results are obtained via a polarization splitting method, which separates the sigma components of a magnetically split transition observed perpendicularly due to the Zeeman effect via polarization optics and determines the magnetic field magnitude due to the energy difference of the magnetic levels. These measurements are combined with Thomson scattering, Faraday rotation, and interferometry measurements of the ion temperature, gross magnetic field, and density to determine the magnetic field distribution at measured densities and temperatures in an imploding gas-puff Z-pinch.

 

These results present the experimentally measured magnetic field distribution in an imploding Z-pinch gas-puff plasma without an impinged B_z, with intent to verify models estimating the implosion speed, dynamics, and current distribution in these gas-puff Z-pinches. In the search for spectroscopically viable species, both carbon dioxide and nitrogen gas puffs are considered.