Abstract
The results of triple Langmuir probe method diagnostics of plasma created by a pulsed discharge in a capillary with an ablating wall and injected into a rarefied atmosphere (p < 1 Torr) are presented. The possibility of obtaining high-speed plasma flows in the wide range of electron density ne = 1011 − 1015 cm-3 and the temperature Te = 1 − 5 eV by varying the discharge power input in the range of N = 15 − 500 kW is shown. The effects indicating the violation of approximation of the infinitely thin probe layer while reducing the electron density below ne < 1013 cm-3 and requiring account in the theoretical model of a triple probe are found. The results of measurements are in good quantitative agreement with the results of diagnostics of plasma flows similar in parameters.
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