Dark-ground illumination as a quantitative diagnostic for plasma density.

Abstract

Radial electron density profiles of a toroidal belt pinch plasma have been obtained by a single measurement. Collimated ruby laser light, incident on the plasma, is focused to a diffraction-limited spot (100 microm). The technique, a variation of the dark-ground microscope, involves masking the center of the plasma diffraction pattern with a thin wire… (More)
DOI: 10.1364/AO.21.002531

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Cite this paper

@article{Paul1982DarkgroundIA, title={Dark-ground illumination as a quantitative diagnostic for plasma density.}, author={Solomon Fd Paul}, journal={Applied optics}, year={1982}, volume={21 14}, pages={2531-7} }