Anode Temperature and Plasma Sheath Dynamics of High Current Vacuum Arc After Current Zero

  title={Anode Temperature and Plasma Sheath Dynamics of High Current Vacuum Arc After Current Zero},
  author={Anton V. Schneider and Sergey A. Popov and Alexander V. Batrakov and Gabriela Sandolache and Hans Schellekens},
  journal={IEEE Transactions on Plasma Science},
This paper addresses the behavior of a high-current vacuum arc after current zero (CZ). Langmuir probes operating in the electron saturation current mode are used to detect the time of arrival of the cathode sheath at the probe position. The probe current is measured just before and after the CZ followed by transient recovery voltage both with and without external axial magnetic field (AMF). For an AMF-stabilized arc, the plasma sheath expanded radially with respect to the electrode axis… CONTINUE READING
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