Low voltage drop, cross-field, gas switch and method of operation

• Main Authors: SMITH DAVID JOHN, TROTTER JASON FREDRICK, MICHAEL JOSEPH DARRYL, LAWLER JAMES E, MARQUARD KIRK ERNEST, ACETO STEVEN CHARLES, HITCHON WILLIAM NICHOLAS GUY, SOMMERER TIMOTHY JOHN
• Format: Patent
• Language: Chinese; English
• Published: 09.07.2019
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS; ELECTRICITY

A gas switch includes an anode and a cathode spaced apart from the anode, wherein the cathode includes a conduction surface. The gas switch also includes a plurality of magnets arranged to generate amagnetic field that defines an annular path over a portion of the conduction surface at a radial distance from a switch axis, and a control grid positioned between the anode and the cathode. In operation, the control grid is arranged to establish a conducting plasma between the anode and the cathode, wherein, in the presence of the conducting plasma, a voltage drop between the anode and the cathode is less than 150 volts, and wherein the conducting plasma forms a cathode spot that circles the annular path. 一种气体开关包括阳极和与阳极间隔开的阴极，其中阴极包括导电表面。气体开关还包括布置成生成磁场的多个磁体以及定位在阳极与阴极之间的控制网栅，所述磁场在距离开关轴线一定径向距离处在导电表面的部分上限定环形路径。在操作中，控制网栅布置成形成阳极与阴极之间的导电的等离子体，其中在导电的等离子体的存在下，阳极与阴极之间的电压降小于150伏，且其中导电的等离子体形成环绕环形路径的阴极斑点。