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Schematic representation of helium generated plasma source.

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posted on 15.08.2014 by Paola Brun, Surajit Pathak, Ignazio Castagliuolo, Giorgio Palù, Matteo Zuin, Roberto Cavazzana, Emilio Martines

The plasma source used in the present study consisted of two coaxial tubes, the outer one made out of copper and the inner one made out of insulating material. Two parallel grids 1 mm away from one another closed the tubes. The electric field was formed in the space between the two grids by applying a RF voltage difference supplied by a radiofrequency (RF) generator coupled to the source by a matching network.