公开(公告)号：US5072148A

公开(公告)日：1991-12-10

申请号：US596957

申请日：1990-10-15

Applicant: Henry C. Grunwald ,  Murray J. Kennedy

Inventor： Henry C. Grunwald ,  Murray J. Kennedy

IPC: H01J9/04 ,  H01J1/28 ,  H01J17/34

CPC classification number: H01J1/28

Abstract: A dispenser cathode is designed with an emitting surface including at least one emitting groove characterized by steep opposing walls oriented parallel to the ion flow wherein the walls have a given depth and are separated from each other by a given distance such that bombarding ions which impinge on one wall cause emitting material depleted therefrom to be deposited on the opposite wall. The cathode design, particularly the groove area, width and depth, are selected to optimize its emission current density, operational characteristics, and lifetime. Since the grooved dispenser cathode eliminates the effects of ion bombardment without sacrificing performance, the improved dispenser cathode can be used in thyratons and other gas filled electron tubes to provide an order of magnitude improvement in performance over standard cathodes.

Abstract translation: 分配器阴极被设计成具有发射表面，其包括至少一个发射凹槽，其特征在于平行于离子流定向的陡峭的相对壁，其中壁具有给定的深度并且彼此分开给定距离，使得轰击撞击的离子 一个壁使得耗尽其的发光材料沉积在相对的壁上。 选择阴极设计，特别是凹槽面积，宽度和深度，以优化其发射电流密度，操作特性和寿命。 由于槽式​​分配器阴极消除了离子轰击的影响而不牺牲性能，所以改进的分配器阴极可以用于thyratons和其他填充气体的电子管中，以提供比标准阴极提高一个数量级的性能。

公开(公告)号：US5063324A

公开(公告)日：1991-11-05

申请号：US502078

申请日：1990-03-29

Applicant: Henry C. Grunwald

Inventor： Henry C. Grunwald

IPC: H01J17/50 ,  H01J1/28

CPC classification number: H01J1/28

Abstract: A dispenser cathode for a gas filled tube is fabricated from a porous metal material impregnated with an electron emitting material and has on an emitting surface at least one geometric aperture of a given depth and width and having steep vertical walls which serve to compensate for the deleterious effects of ion back bombardment.

Abstract translation: 用于填充气体的管的分配器阴极由浸渍有电子发射材料的多孔金属材料制成，并且在发射表面上具有给定深度和宽度的至少一个几何孔径，并且具有陡峭的垂直壁，其用于补偿有害的 离子轰击的影响。

公开(公告)号：US4888518A

公开(公告)日：1989-12-19

申请号：US122304

申请日：1987-11-16

Applicant: Henry C. Grunwald

Inventor： Henry C. Grunwald

IPC: H01J17/04 ,  H01J17/54

CPC classification number: H01J17/54 ,  H01J17/04

Abstract: A structure associated with a ceramic envelope gas filled electron tube whereby a series of concentric holes are formed through grid radiator rings which thus simulates the outer neutral gas region of a typical glass envelope tube structure. In this manner, one has created a neutral non-ionized gas flow path which shunts the main discharge in such a thyratron and which is contained within the metal internal axial structure. The apertures, as formed in the grid radiator rings, thereby provide a source path for neutral molecular hydrogen from the gas reservoir located at the base of the tube to allow the gas to be directed to the anode/grid region of the tube, where electrons are pumped and the gas is collisionally ionized. The effect serves to enhance the maximum thyratron operating frequency by allowing cool neutral gas molecules to flow into the gap region through the parallel path and then into the discharge volume of the ceramic thyratron tube. Thus, the use of such structure provides an increased maximum conduction current rating and, therefore, a greater switching capability for a ceramic gas filled tube.

Abstract translation: 与陶瓷包络气体填充电子管相关联的结构，由此通过栅格散热器环形成一系列同心孔，由此模拟典型的玻璃封套管结构的外部中性气体区域。 以这种方式，已经创建了一种中性非电离气体流动路径，其在这种闸流管中分流主放电并且包含在金属内部轴向结构内。 如在栅格散热器环中形成的孔由此提供来自位于管底部的气体储存器的中性分子氢的源路径，以允许气体被引导到管的阳极/栅格区域，其中电子 被泵送并且气体被碰撞电离。 该效果用于通过允许冷中性气体分子通过平行路径流入间隙区域，然后进入陶瓷闸流管的排放体积来增强最大闸流管运行频率。 因此，这种结构的使用提供了增加的最大传导电流额定值，并因此提供了对于陶瓷气体填充管的更大的开关能力。