Wire array load structure for suppressing pre-pulse current

Abstract

The invention belongs to a wire array load structure, and aims to solve the problems that in a method for reducing the influence of pre-pulse current by adding a pre-pulse switch or a plasma cut-off switch at the load output front end of a large pulse power device at present, the pre-pulse switch is easy to generate insulation breakdown when working at high voltage for a long time; the invention provides a wire array load structure for suppressing pre-pulse current, aiming at solving the technical problem that the operation and maintenance cost of a device is increased due to the fact that a plasma cut-out switch needs to ensure time synchronization of the switch and the device, one end of a cathode rod is connected with a cathode of a pulse power device, and the other end of the cathode rod penetrates through an anode base and is connected with a load base; a gap is reserved between the cathode rod and the anode base, the anode cover plate and the anode base are connected to form a current loop and are arranged in parallel, the load base is located between the anode cover plate and the anode base, one end of the load wire array is installed on the load base, the other end of the load wire array is fixed to the anode cover plate, and a transition piece is arranged on the anode base. And the first metal wire is in point contact with the cathode rod.

Description

technical field [0001] The invention belongs to a wire array load structure, in particular to a wire array load structure for suppressing pre-pulse current. Background technique [0002] As the most effective laboratory soft X-ray source, the wire array Z-pinch plasma radiation source has broad application prospects in the research fields of radiation effects, inertial confinement fusion (ICF), high energy density physics and laboratory astrophysics. . [0003] The large-scale pulse power device will generate a certain pre-pulse current during the formation of the main current pulse, and the pre-pulse will converge to the wire array load before the main pulse transmission. If the amplitude of the pre-pulse current is large, the metal wire will be burnt or pre-ablated under the pre-pulse current, which will cause plasma instability and destroy the initial symmetry of the wire array, which will affect the internal stability of the wire array during the main pulse current peri...

AI Technical Summary

Problems solved by technology

If the amplitude of the pre-pulse current is large, the metal wire will be burnt or pre-ablated under the pre-pulse current, which will cause plasma instability and destroy the initial symmetry of the wire array, which will affect the internal stability of the wire array during the main pulse current period. Explosion process and X-ray radiation yield

[0004] In order to effectively reduce the influence of the pre-pulse current, a pre-pulse switch or a plasma breaker switch is usually added at the front end of the load output of a large-scale pulse power device. Ensure the time synchronization between the switch and the device, and at the same time, the switch must be cleaned frequently, which undoubtedly increases the cost of device operation and maintenance

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