公开(公告)号：US3917968A

公开(公告)日：1975-11-04

申请号：US44479874

申请日：1974-02-22

Applicant: TEXAS INSTRUMENTS INC

Inventor： DI BENEDETTO GILBERTO ,  THOMSON JAMES K

IPC: H01J3/02 ,  H01J1/88 ,  H01J19/42

CPC classification number: H01J3/027

Abstract: An electron source is provided by thermionic filaments in the form of elongated strips or wires, such filaments being mounted within a casing. A deflector electrode is formed on a wall of the casing behind the filaments and director electrodes placed forward of the filaments in the direction in which the electron flow is desired. The various electrodes are positioned relative to the filaments and have potentials applied thereto such that uniform distribution of electrons is provided over a predetermined area over which electron flow is desired. The filaments are resiliently supported in the casing so that they are appropriately tensioned to avoid sag when they are heated, and are able to withstand shock and vibration.

Abstract translation: 电子源由细长条或线的形式的热电离丝提供，这种细丝安装在外壳内。 偏转器电极形成在壳体的壁上，并且沿着期望电子流的方向在灯丝前方设置的灯丝和导向器电极。 各种电极相对于长丝定位，并且具有施加到其上的电位，使得在需要电子流的预定区域上提供均匀的电子分布。 长丝被弹性地支撑在壳体中，使得它们被适当地张紧以避免在被加热时的松弛，并且能够承受冲击和振动。