engleski

Constriction in lithium glow discharges in a heat-pipe oven

The electric discharge was established in a modified crossed heat-pipe oven filled with lithium. The discharge was spectroscopically studied for different lithium vapor pressures. Constriction of the positive column in the lithium vapor discharge was observed and the discharge diameter was measured as a function of lithium vapor pressure. The rich bound-bound emission molecular spectra of A 1?u+ ? X 1?g+ and B 1?u ? X 1?g+ systems of the lithium dimer were observed in lithium-rare gas discharges and correlated with the onset of the discharge constriction.

lithium plasma; glow discharge; constriction of plasma

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