Abstract
UDC: 537.52:621.327
DOI https://doi.org/10.5281/zenodo.1168351
The characteristics of a bipolar high-current nano-second discharge in the air between the copper electrodes is given. With an inter-electrode distance of 1–2 mm and the air pressure of 0.05–3.0 atm the conditions of obtaining a homogeneous volume discharge in the inhomogeneous electric field, associated with the generation of a beam of runaway electrons and concomitant X-ray radiation, are realized. It is shown that this discharge is a simple point source of radiation in the spectral range of 200–230 nm on the transitions of singly charged copper ions. The results of optimization of the UV-emitter depending on the pump conditions and parameters of the discharge medium are provided. It is found that, under the influence of a discharge, a deposition of thin nanostructured membranes made of electrodes erosion products and products of dissociation of air molecules is possible.
Keywords: bipolar nanosecond discharge, copper, air, emission and transmission spectrum, nanostructures.