Features of the Energy Parameters and the Composition of the Ion Flow From the Plasma at the Spark Stage of Vacuum Discharge

Zemskov, Yu. A.; Uimanov, I. V.

doi:10.1109/tps.2013.2268691

Cited by 1 publication

(4 citation statements)

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“…However there is the voltage drop on the voltage waveform at the 100 ns after time zero that could be associated with the electron beam creation. This behavior of the particles is similar to that in the single-pulse spark discharge [1]. Thus the plasma cloud ions are obviously accelerated in the interaction with the spark plasma flow and probably under the influence of an electron beam from the needle cathode.…”

Section: Resultssupporting

confidence: 67%

“…In the course of this experiment energy distributions of hydrogen, carbon and fluorine were obtained in general as distinct from the results of previous study [1]. Signal of the ions of the electrode materials could not been selected from the background noise except for the aluminium ions in some cases.…”

Section: Resultsmentioning

confidence: 60%

“…Signal of the ions of the electrode materials could not been selected from the background noise except for the aluminium ions in some cases. Probably it was because the primary plasma source in the flashover was the teflon, and the spark discharge gap was too large to provide significant anode erosion, as it was shown in [1]. And the second cathode was made of high-melting molybdenum, which ions were not perceptible in comparison with impurities ions (carbon, hydrogen).…”

Section: Resultsmentioning

confidence: 99%

“…In the early experiments [1] there was found the evidence of the collective acceleration mechanism of the ions in the spark stage of the vacuum discharge. The ions of the cathode flare and of the anode spot plasma cloud were accelerated under the influence of the electron beam emitted from the cathode as a result of explosive emission.…”

Section: Introductionmentioning

confidence: 99%

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Anomalous ions acceleration in the double-pulse setup

Zemskov

Muzukin

Uimanov

2014

2014 International Symposium on Discharges and Electrical Insulation in Vacuum (ISDEIV)

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Mass-charge spectra and energy distributions of anomalous accelerated ions were obtained in the double-pulse setup. In the setup the plasma cloud of the 30 kV vacuum flashover interacted with the plasma flare of the 300 kV vacuum spark discharge. The plasma cloud ions appeared in the ion flow. The energies of these ions are much more than 30 keV that could be attained in the flashover discharge alone. The energy peaks in these distributions can be associated with the voltage values at the moments of the current instabilities.  I.INTRODUCTION In the early experiments [1] there was found the evidence of the collective acceleration mechanism of the ions in the spark stage of the vacuum discharge. The ions of the cathode flare and of the anode spot plasma cloud were accelerated under the influence of the electron beam emitted from the cathode as a result of explosive emission. Energies of the anode material ions were less than 50 keV per charge unit. Since the significant evaporation of the anode material began at the end of the pulse, when the voltage applied to the gap was low. In the course of this study the plasma cloud near the anode was created preliminary by the 100 ns flashover discharge. And the energy distributions of accelerated ions were obtained to confirm that the potential well acceleration mechanism (and the model presented in [2]) operates in the case of the plasma cloud of any origin.

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Section: Resultssupporting

confidence: 67%

Section: Resultsmentioning

confidence: 60%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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