公开(公告)号：US3827776A

公开(公告)日：1974-08-06

申请号：US26248072

申请日：1972-06-14

Applicant: FUJITSU LTD

Inventor： NAKAYAMA N ,  OSAWA M ,  MIZUKO K ,  TAKAHASHI I

IPC: H01J17/49 ,  H01J9/38

CPC classification number: H01J11/00

Abstract: A pair of insulating substrates, at least one of which provides a group of electrodes on the inside surface, are positioned in spaced parallel relation having inside surfaces opposite each other with a gap filled with ionizable gas. The surface of the group of electrodes is covered with a dielectric layer, and this dielectric layer is covered with a material having a high secondary electron emissivity by introducing a fluid which includes alkali metal into the above-mentioned gap. Further, the dielectric layer is composed of a material having small activity with alkali metal.

Abstract translation: 一对绝缘基板，其至少一个在内表面上提供一组电极，以间隔开的平行关系定位，具有彼此相对的内表面，并且间隙填充有可电离气体。 电极组的表面被电介质层覆盖，并且通过将包含碱金属的流体引入到上述间隙中，通过具有高二次电子发射率的材料覆盖该电介质层。 此外，介电层由与碱金属具有较小活性的材料组成。