Аннотация:The axial distribution of the plasma potential, electron density and temperature in a Capacitive RFplasma source with the geometry of an accelerator with a closed electron drift is studied experimentally. Twocases of the external electrical discharge circuit are considered. In the first case, the electrodes are closed bydirect current, and in the second case, they are opened. It is shown that direct current closure of the electrodesleads to a significant increase in the plasma potential and electron density. In a number of cases, local maximaof temperature and plasma density are observed near the electrodes, which can be associated with the occurrence of the azimuthal electron drift in crossed electric and magnetic fields.