Bremsstrahlung radiation from toroidal plasmas generated through hydrodynamic shear.

ABSTRACT: In this work, we investigate the anomalous appearance of bright visible light from a toroidal argon plasma generated through extreme hydrodynamic shear. In ambients of nitrogen or helium, the spectral content is easily correlated to the plasma's color. In an argon ambient however, infrared spectral lines dominate the spectrum, while the plasma appears light blue, nearly white, to the naked eye. We determine that this luminescence is a visible broadband continuum emitted by electrons scattering off neutral argon atoms, a form of radiation called bremsstrahlung radiation ([Formula: see text]). Using multispectral imaging, we calculate the temperature, T_e, of bremsstrahlung-producing electrons spatially throughout the plasma, up to the ionization energy of argon atoms 15.76 eV. We

SUBMITTER: Mendoza S 

PROVIDER: S-EPMC11947207 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature