A multi-channel gas switch

Abstract

In order to achieve the purpose of reducing the inductance of the gas switch itself under the premise of ensuring a compact structure, the present invention proposes a multi-channel gas switch, which includes a housing, an end cover, and a plurality of relatively independent three-channel gas switches arranged at intervals along the axial direction of the housing. Electrode gap; multiple main electrode connection terminals and trigger electrode connection terminals are arranged on the shell; a single three-electrode gap includes two cylindrical main electrodes and a knife-edge trigger electrode; two main electrodes are arranged oppositely, and one end It is connected to the connecting terminal of the main electrode, and the other end is located in the housing with a gap; the trigger electrode is arranged perpendicular to the axes of the two main electrodes, one end of the trigger electrode is connected to the connecting terminal of the trigger electrode, and the other end is located between the two main electrodes; The trigger electrodes in the three-electrode gaps are all connected to the trigger voltage introduction electrodes outside the housing through the trigger electrode connection terminals and isolation resistors in sequence.

Description

technical field [0001] The invention belongs to the technical field of pulse power, and in particular relates to a multi-channel gas switch. Background technique [0002] The gas switch is one of the key components of the pulse power source. It is widely used in pulse power devices because of its advantages of high withstand voltage and strong flow capacity. Especially in the application of MV (megavolt) level high voltage output or hundreds of kilojoule level energy transmission, the gas switch is still the main choice. According to different application occasions, gas switch electrode structures are various, such as two-electrode self-breakdown switch, three-electrode field distortion switch, three-electrode Trigatron switch, multi-stage multi-channel switch, track switch, etc. For pulse power sources containing a large number of switching devices such as Marx generators and linear pulse transformers (LTD), the gas switch's own inductance has a great influence on its disc...

AI Technical Summary

Problems solved by technology

Therefore, multi-level and multi-channel switches are often used in LTD. The advantage is that it is easy to form multiple discharge channels to achieve the purpose of reducing the inductance of the switch spark channel; the disadvantage is that the increase of series electrodes will lead to a larger inductance of the switch structure.

Track switches are often used in fast Marx. The advantage is that the inductance of the switch structure and the spark channel can be effectively reduced after forming multiple channels; the disadvantage is that due to the limitation of the electromagnetic wave transit time between the track electrode discharge points, it is not easy to form multiple channels, resulting in gap spark discharge channels. Increased inductance

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