Microsecond plasma opening switch application for materials processing

Summary form only given. A novel approach to microsecond plasma opening switch (MPOS) application for a pulse power ion beam (PPIB) source is discussed. Characterization of the PPIB in the MPOS was made on a microsecond MARX generator (500 kV, 280 kA, 1 /spl mu/s) in both positive and negative polar...

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Bibliographic Details
Published inInternational Conference on Plasma Sciences (ICOPS) p. 159
Main Authors Bystritskii, V.M., Grigoriev, S.V., Lisitsyn, I.V., Mesyats, G.A., Sinebryukhov, A.A., Sinebryukhov, V.A.
Format Conference Proceeding
LanguageEnglish
Published IEEE 1993
Subjects
Cathodes
Character generation
Current distribution
Electrodes
Hydrogen
Ion beams
Plasma applications
Plasma materials processing
Plasma sources
Switches
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Summary:Summary form only given. A novel approach to microsecond plasma opening switch (MPOS) application for a pulse power ion beam (PPIB) source is discussed. Characterization of the PPIB in the MPOS was made on a microsecond MARX generator (500 kV, 280 kA, 1 /spl mu/s) in both positive and negative polarities of the potential electrode. The ion-irradiated region at the MPOS cathode had a length of several tens of centimeters, significantly exceeding the initial plasma length. The ion flow current distribution along the switch was nonuniform with the maximum (up to 100 A/cm/sup 2/) at the load side of the plasma source. The ion flow at the load side of the switch consisted mostly of hydrogen ions, while in the near generator region C/sup +/ ions were dominant. The overall generation efficiency of the PPIB amounted to 30-50%.
ISBN:0780313607
9780780313606
ISSN:0730-9244
2576-7208
DOI:10.1109/PLASMA.1993.593453