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The time-resolved ion charge state distribution (CSD) and the charge state resolved ion velocities in the titanium hydride cathodic vacuum arc plasmas have been measured using a time-of-flight (TOF) mass spectrometer. Besides H + and Ti i+ existing in the plasmas with H + and Ti 2+ dominating, diatomic molecule ions of H2+ are detected as neutral gas of hydrogen is...
The time and space evolution of pulsed vacuum arc plasma parameters have been measured using a single cylindrical Langmuir probe in a free expansion cup. Electron density n e , effective electron temperature T eff and electron energy distribution function (EEDF) are derived from the I–V curves using Druyvesteyn method. Results show that during the discharge time, the electron density...
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