Abstract
The plasma generated by a coaxial plasma puff-gun is studied using a double Langmuir probe and spectrometer. An analytical solution of the plasma sheath motion is also presented. The charge voltage of the energy-storage capacitors of the gun ranges from 1.5 to 4.0 kV, the plasma electron temperature from 10 to 20 eV, the kinetic energy from 45 to 310 eV and the density from 5*1013to 7*1014cm-3. An approximate solution has been obtained under the assumption of the snowplow model, and the comparison of the predictions of the theory with our experimental results indicates general qualitative agreement.
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