公开(公告)号：US3663853A

公开(公告)日：1972-05-16

申请号：US3663853D

申请日：1970-07-29

Applicant: ALCATEL SA

Inventor： SOMMERIA JEAN

IPC: H01J3/02 ,  H01J29/04 ,  H01J29/48 ,  H01J29/56

CPC classification number: H01J3/029

Abstract: Triode electron gun with positive control grid, with emitting cathode, and with acceleration anode, providing a concentration and emission of electrons directed along straight and parallel paths. Thus gun includes several elementary guns distributed around a single axis, the axes of the guns converging toward one and the same point on the axis situated at the entrance to an axial conical conduit drilled in the anode. The electrons produced in each elementary gun by an emitting pellet go through a concentrator and then through a conduit in alignment with the axis of each gun and perforated in a single thick grid. The invention can be applied in metallurgy for melting and heating.

Abstract translation: 具有正控制栅格的三极电子枪，具有发射阴极和加速阳极，提供沿着直线和平行路径引导的电子的浓度和发射。 因此，枪包括围绕单个轴线分布的几个基本枪，枪的轴线聚集在位于在阳极中钻出的轴向锥形导管的入口处的轴上的同一点上。 通过发射粒子在每个基本枪中产生的电子通过浓缩器，然后通过与每个枪的轴线对准的导管，并以单个厚的栅格穿孔。 本发明可用于冶金和熔融加热。