Target assembly laser-plasma accelerator

摘要

The invention relates to the field of rocket technology, in particular to components of jet engines, based on the laser ablation. The problem to be solved by the claimed utility model - increased efficiency of the target site of laser-plasma engine. The technical result - decrease parasitic emission of liquid droplets in the working substance at the target site of laser-plasma engine. Said technical result is achieved in that the target node ATD, comprising a reservoir filled with liquid working medium, and hermetically connected to the capillary, the open end of which is area ablation and stored in the laser focus ATD according to the utility model, the capillary is formed with a diameter smaller than the diameter the focal spot of the incident laser radiation, and the open end of the capillary hole is formed, whose outer diameter coincides with the diameter of the focal spot. The volume of the wells is equal to the volume of liquid working substance vaporized during a single pulse of laser radiation. As the working medium in the ablation area for laser radiation pulse vaporizes completely, there is no formation of a wave on the surface of the liquid working substance, which reduces the emission intensity drops during engine operation. The time intervals between pulses of laser radiation is a restoration fluid level in the ablation area due to capillary forces.