Abstract: Proportional detector intended to detect ionizing radiations for 2-dimension localization.This detector consists of a network of conducting wires (2) forming the anodes of an ionization chamber and operating under avalanche conditions and is characterized in that it comprises a continuous resistive collector (12) with two dimensions and located between the anode (2) wires and the cathode (1) on which the localization of an electron avalanche is effected by electrostatic induction, the reading of the data concerning the electric pulse generated by induction on the collector (12) being effected at the periphery of the latter.

Abstract: The metal coating on a dielectric sheet or strip, for instance for use in capacitors, is locally removed by a Corona discharge between the sheet and a point electrode.A current return electrode contacts the sheet and is located in the return path to a HV generator connected to the point electrode.

Abstract: The strip material to be processed is passed successively at a first location and a second location. In the first location, electrical charges are deposited on one surface of the strip by corona discharge between an electrically conducting support for the strip and a wire electrode. At the second location, a sliding arc is created along the charge surface of the strip between two electrodes. Due to the prior deposit of charges, the alternating voltage to be established between the electrodes is much decreased.

Abstract: For treating textile yarns by electrical discharge, the yarn is caused to travel along a path within at least one module. The module has a first and a second electrode confronting each other. A generator is connected to the electrodes to provide a voltage sufficient to strike an arc. The power of the generator and the impedance of the circuit are such that the arc is quenched after striking in a time which is short as compared to the time of rise to the arc striking voltage.