A device for detection of the signal of the deviation of the electron gun has a beam of electrons, in particular for oscillographe cathode and oscillographe comprising such a device

摘要

P the invention relates to a device for detecting the signal of the deflection of the electron beam of an electron gun. The device comprises a target and of the sweeping means 42 of the target by an electron beam is deflected in a direction y perpendicular to the scanning direction x by means 43. The target comprises on one of its faces a series of means semi - conductors 3 generators of charge carriers under the effect of the electronic bombardment. The means of a semi - conductors form in the direction of scanning of the beam an alignment of the elementary cells. The means for sequential reading 4 of the elementary generators deliver the information to a load circuit common. Application to the cathode oscillographs high cut-off frequency. / p