Journal of Physics: Conference Series | 2021
Open discharge-based electron beam generator with rare gas blown through the discharge gap
Abstract
Electron beam generators operating directly in gaseous medium are a promising means of solving several technological problems. In order to solve these problems, it is required to broaden the working pressure range of these generators. Investigations of the current-voltage characteristics of the generator, which was modified to supply the substitutional gas into the discharge gap, showed that by means of blowing helium at a pressure of 2.6 kPa into air medium at a pressure of 2.5 kPa, it is possible to reach a voltage of 5.5 kV at a current of 23 mA. The substitutional gas flows have been determined that ensure the stable generator operation at air pressures in the range from 1 to 2.5 kPa.