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Abstract

A method of producing a plasma by capacitive discharges between an active electrode and a passive electrode within a sealed chamber at controlled pressure, the passive electrode being placed at a given electric potential while the active electrode is fed with a discharge-maintaining voltage. The active electrode and passive electrode define a separation plane therebetween parallel to the electrodes. According to the method, a multipole magnetic barrier is placed between the electrodes within the sealed chamber, the multipole magnetic barrier producing magnetic field lines extending across the separation plane. Fast electrons accelerated by the active electrode are caused to oscillate between magnetic poles in order to create plasma production and diffusion zones that are situated on either side of a magnetic barrier facing each of the electrodes.

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First Claim