Abstract
Results of main energy parameters of plasma jet investigation of coaxial accelerator with a conical insert in the region of discharge formation are presented. The dependences of the pressure and diameter of the deuterium plasma jet on the distance to the accelerator as well as its length and voltage polarity on the electrodes are obtained. The square growth of plasma jet energy with increasing voltage is shown. Among all the tested modifications the most effective was an accelerator with length not exceeding 220 mm, negative voltage polarity at the central electrode and focusing conical insert at the beginning of the outer electrode. Deuterium plasma with ionization front velocity of more than 100 km/s and pressure of more than 1 MPa at the source output was obtained. Method for measuring jet pressure using a deflecting screen and FLIR SC7300M infrared camera is presented.
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