An anode assembly for electro-excited laser discharge tube

Abstract

The invention discloses a supersonic speed anode subassembly for electrically exciting a laser discharge tube. The supersonic speed anode subassembly comprises a conductive vent copper tube and a supersonic speed spray tube discharging head; an air inlet channel, a positioning hole section and an internal thread hole section communicated in order are arranged in the conductive vent copper tube; the internal thread hole is arranged at the front end of the conductive vent copper tube; the supersonic spray tube discharging head comprises a positioning section and an outer thread section arrangedin front and back; the positioning section is matched with the positioning hole section, and the external thread section and the internal thread section are in thread fit; an air inlet section, a shrinking cone section, a throat and an air outlet diverging cone section communicated in order are arranged in the supersonic spray tube discharging head along an air flowing direction; and the air inletsection and the air inlet channel are communicated. The supersonic speed anode subassembly disclosed by the invention can be self-cooling, and has the advantages of being high in discharging efficiency and resistant in ablation.

Description

technical field [0001] The invention relates to the technical field of electro-excited chemical lasers, in particular to an anode assembly for an electro-excited laser discharge tube. Background technique [0002] The electrically excited hydrogen fluoride / deuterium fluoride chemical laser generates fluorine atoms through discharge, and then pumps the fluorine atoms with hydrogen / deuterium gas molecules to convert the energy released by the exothermic displacement chemical reaction process into hydrogen fluoride / deuterium fluoride molecules It can change the molecular vibration-rotational distribution of hydrogen fluoride / deuterium fluoride, generate particle population inversion, and then laser output the important-purpose hydrogen fluoride / deuterium fluoride multi-wavelength laser with a central wavelength of 2.7 / 3.8 microns. The entire laser includes a high-voltage DC power supply, an air intake component, a discharge tube component, an optical cavity component, a gain se...

AI Technical Summary

Problems solved by technology

The needle-like structure has a small effective discharge cross-sectional area, resulting in low dissociation efficiency of fluorine-containing gases and low overall electrical efficiency

In addition, after the two electrodes are discharged for many times for a long time, due to the direct contact between the fluorine atoms dissociated in the discharge and the anode metal material, oxidation reaction or ablation contamination will occur, especially under the operating parameter conditions of large discharge current, Frequent maintenance or periodic replacement is required, which brings a lot of inconvenience to the use of electro-excited lasers

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