Volume preionization high barometric large volume stable and even discharging compound electrode structure

Abstract

This invention provides a stable and uniform discharging compound electrode structure in a pre-ionized anticyclone large volume composed of a cathode, a ballast medium, a main discharge anode, an insulation medium and a pre-ionized anode, in which, the main discharge anode and the pre-ionized anode are in batten state, the cathode is the improved Ru khodorkovsky electrode, each kind of electrodes is composed of several thin copper plates and two sides of the plate are plated with insulation medium layers.

Description

technical field [0001] The invention provides a compound electrode structure with volume pre-ionization, high pressure, large volume, stable and uniform discharge, and belongs to the field of laser technology. Background technique [0002] At present, both at home and abroad believe that the gas laser with electron beam pre-ionization is a better solution. (US) G. Beckfield et al., Laser Plasma, Zhuang Guoliangze, Shanghai Science Press, December 1981 (224-230) and Li Shimin et al., Principles and Design of Laser Devices, Beijing, National Defense Industry Press, 1998 July (99-100). The pre-ionization source is separated from the main discharge electric field, and the discharge parameters can be adjusted to control the E / P at the optimal excitation value. The electron beam can be pre-ionized uniformly volumetrically to achieve the desired electron density. Inject high-energy electron beams into high-pressure and large-volume discharges to generate and maintain the necessa...

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Problems solved by technology

[0003] The main discharge electrode for electron beam pre-ionization, due to the limited size of the electrode, there is an edge effect, and there is a high field strength at the edge, which causes an arc to appear at the edge of the electrode, and the laser cannot work normally

The structure of the electron beam is huge, the process is complicated, the price is expensive, the window of the electron gun is easily damaged, and X-rays are generated, which makes the electrode structure type of electron beam pre-ionization difficult to popularize and promote

[0004] For photo-induced pre-ionized tube-sheet electrodes and double-discharge electrodes, since the pre-ionization direction is perpendicular to the main discharge direction, it is neither volume pre-ionization nor surface pre-ionization, and the effect of pre-ionization is very uneven. In large-volume discharge, the laser cannot discharge stably and uniformly, so it can only be used in small and medium power lasers

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