Long-living plasmoids generation by high-voltage discharge through thin conducting layers

TL;DR

This paper investigates a novel high-voltage discharge method through thin conducting layers on glass, producing long-lived plasmoids with unique properties, analyzed through spectral and electric measurements.

Contribution

It introduces a new discharge technique that generates long-lived plasmoids and analyzes their physical and electrical properties in detail.

Findings

Plasmoids have a lifetime of about 0.2-0.3 seconds.

Spectral analysis reveals specific plasma radiation characteristics.

Metastability mechanisms of the plasmoids are discussed.

Abstract

A new type of pulse high voltage electric discharge through a thin conducting layer on the surface of glass plate has been investigated. The afterglow plasma of this discharge forms quasi-spherical object with a lifetime about 0.2-0.3 s. Electric properties of the objects were studied by electric probe method. Measurements of plasma radiation spectra kinetics at visible and near ultraviolet spectral ranges have been carried out. Comparative analysis of the physical properties of the plasmoids appearing in this discharges and of ones generated via thin metal wires burning is given. Possible mechanism of the plasma metastability are discussed.