Features of Jets Formed by Erosive Capillary Discharges

Abstract

An experimental study of the physical processes in a thin plasma jet produced by the pulsed discharges in the capillary with evaporated wall is described. The losses in mass from capillary wall as well as the transferred charge are accurately measured. The velocity of plasma jet propagation is measured, too. The current structure in plasma is studied. It is proved that a thin plasma jet can be obtained through capillary manufactured from not only polymer but also inorganic materials.

On the influence of the condensed particles on the absorption properties of plasma created by ablation controlled arc in a capillary

“…Introduction A pulsed discharge in a capillary with an ablating wall is one of the methods for obtaining a highly ionized dense plasma [1,2]. This type of discharge is of interest for many practical applications (this question is discussed elsewhere [3]) due to the possibility of obtaining a plasma of the required chemical composition over a wide range of pressures, temperatures, density of charged particles due to fairly simple procedures: selecting the type and method of supplying the working fluid, and selecting the parameters of the discharge pulse. One of distinctive features of such a discharge is the spatial separation into a high-temperature paraxial zone and a relatively low-temperature periphery with substantially different component composition.…”