Multi-stage electron gun having an electrostatic cavity

Details Multi-stage electron gun having an electrostatic cavity Multi-stage electron gun having an electrostatic cavity

H - Electricity

01

J

H01J 23/06 (2006.01) H01J 3/02 (2006.01)

Patent

CA 2254132

The present invention pertains to an electron gun that generates an electron flow to produce r.f. energy therefrom. The electron gun (10) comprises an electrostatic cavity (12) having a first stage (14) with emitting faces (16) and multiple stages with emitting sections (18). The electron gun (10) also includes an electrostatic force generating mechanism (15) which encompasses the emitting faces (16) and the multiple emitting sections (18) such that electrons directed from the emitting faces (16) contact the emitting sections (18) so that additional electrons are emitted therefrom. Moreover, a method of producing electrons using this invention is described.

La présente invention se rapporte à un canon à électrons qui produit un flux d'électrons à partir duquel est engendrée une énergie RF. Ledit canon à électrons (10) comprend une cavité électrostatique (12) munie d'un premier étage (14) comportant des faces émettrices (16) et de plusieurs étages comportant des sections émettrices (18). Ledit canon à électrons (10) comprend également un mécanisme produisant une force électrostatique (15) qui entoure les faces émettrices (16) et les différentes sections émettrices (18) de manière que les électrons dirigés depuis les faces émettrices (16) entrent en contact avec les sections émettrices (18) et que ces dernières émettent des électrons supplémentaires. On décrit également un procédé permettant de produire des électrons au moyen de la présente invention.

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