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Resonant atomic interfero- and shadowgraphy of vacuum arc with gallium cathode

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5 Author(s)
A. Batrakov ; Siberian Div., Russian Acad. of Sci., Tomsk, Russia ; B. Juttner ; S. Popov ; D. Proskurovsky
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The mechanism of the emission of neutral atoms of the cathode material into the discharge gap of a microsecond low-current vacuum arc with a liquid Ga cathode has been investigated by the method of subnanosecond resonance laser interfero- and shadowgraphy. It has been shown that the cathode material vaporization has a pronounced nonstationary character and occurs both isotropically and in the form of constricted weakly ionized jets with the atom concentration in a jet over 1017cm-3.

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IEEE Transactions on Plasma Science  (Volume:31 ,  Issue: 5 )